diff --git a/configure b/configure
index 1d6b4132d..e827813f7 100755
--- a/configure
+++ b/configure
@@ -1,9 +1,9 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71.
+# Generated by GNU Autoconf 2.72.
 #
 #
-# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
+# Copyright (C) 1992-1996, 1998-2017, 2020-2023 Free Software Foundation,
 # Inc.
 #
 #
@@ -15,7 +15,6 @@
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-as_nop=:
 if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
@@ -24,12 +23,13 @@ then :
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else $as_nop
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
@@ -101,7 +101,7 @@ IFS=$as_save_IFS
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
@@ -131,15 +131,14 @@ case $- in # ((((
 esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
+# out after a failed 'exec'.
 printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
   fi
   # We don't want this to propagate to other subprocesses.
           { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="as_nop=:
-if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+  as_bourne_compatible="if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
   NULLCMD=:
@@ -147,12 +146,13 @@ then :
   # is contrary to our usage.  Disable this feature.
   alias -g '\${1+\"\$@\"}'='\"\$@\"'
   setopt NO_GLOB_SUBST
-else \$as_nop
-  case \`(set -o) 2>/dev/null\` in #(
+else case e in #(
+  e) case \`(set -o) 2>/dev/null\` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 "
@@ -170,8 +170,9 @@ as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
 if ( set x; as_fn_ret_success y && test x = \"\$1\" )
 then :
 
-else \$as_nop
-  exitcode=1; echo positional parameters were not saved.
+else case e in #(
+  e) exitcode=1; echo positional parameters were not saved. ;;
+esac
 fi
 test x\$exitcode = x0 || exit 1
 blah=\$(echo \$(echo blah))
@@ -185,14 +186,15 @@ test \$(( 1 + 1 )) = 2 || exit 1"
   if (eval "$as_required") 2>/dev/null
 then :
   as_have_required=yes
-else $as_nop
-  as_have_required=no
+else case e in #(
+  e) as_have_required=no ;;
+esac
 fi
   if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
 then :
 
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 as_found=false
 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
 do
@@ -225,12 +227,13 @@ IFS=$as_save_IFS
 if $as_found
 then :
 
-else $as_nop
-  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+else case e in #(
+  e) if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
 	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
 then :
   CONFIG_SHELL=$SHELL as_have_required=yes
-fi
+fi ;;
+esac
 fi
 
 
@@ -252,7 +255,7 @@ case $- in # ((((
 esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
-# out after a failed `exec'.
+# out after a failed 'exec'.
 printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
 fi
@@ -271,7 +274,8 @@ $0: message. Then install a modern shell, or manually run
 $0: the script under such a shell if you do have one."
   fi
   exit 1
-fi
+fi ;;
+esac
 fi
 fi
 SHELL=${CONFIG_SHELL-/bin/sh}
@@ -310,14 +314,6 @@ as_fn_exit ()
   as_fn_set_status $1
   exit $1
 } # as_fn_exit
-# as_fn_nop
-# ---------
-# Do nothing but, unlike ":", preserve the value of $?.
-as_fn_nop ()
-{
-  return $?
-}
-as_nop=as_fn_nop
 
 # as_fn_mkdir_p
 # -------------
@@ -386,11 +382,12 @@ then :
   {
     eval $1+=\$2
   }'
-else $as_nop
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -404,21 +401,14 @@ then :
   {
     as_val=$(( $* ))
   }'
-else $as_nop
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
-# as_fn_nop
-# ---------
-# Do nothing but, unlike ":", preserve the value of $?.
-as_fn_nop ()
-{
-  return $?
-}
-as_nop=as_fn_nop
 
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
 # ----------------------------------------
@@ -492,6 +482,8 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
     /[$]LINENO/=
   ' <$as_myself |
     sed '
+      t clear
+      :clear
       s/[$]LINENO.*/&-/
       t lineno
       b
@@ -540,7 +532,6 @@ esac
 as_echo='printf %s\n'
 as_echo_n='printf %s'
 
-
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
   rm -f conf$$.dir/conf$$.file
@@ -552,9 +543,9 @@ if (echo >conf$$.file) 2>/dev/null; then
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -579,10 +570,12 @@ as_test_x='test -x'
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 
 test -n "$DJDIR" || exec 7<&0 </dev/null
@@ -840,13 +833,12 @@ READELF
 RANLIB
 MKDIR_P
 SET_MAKE
+EGREP
+GREP
 LN_S
 INSTALL_DATA
 INSTALL_SCRIPT
 INSTALL_PROGRAM
-EGREP
-GREP
-CPP
 ac_ct_CXX
 CXXFLAGS
 CXX
@@ -1033,7 +1025,6 @@ CPPFLAGS
 CXX
 CXXFLAGS
 CCC
-CPP
 PKG_CONFIG
 PKG_CONFIG_PATH
 PKG_CONFIG_LIBDIR
@@ -1174,7 +1165,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1200,7 +1191,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: \`$ac_useropt'"
+      as_fn_error $? "invalid feature name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1413,7 +1404,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: \`$ac_useropt'"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1429,7 +1420,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: \`$ac_useropt'"
+      as_fn_error $? "invalid package name: '$ac_useropt'"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1459,8 +1450,8 @@ do
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
     x_libraries=$ac_optarg ;;
 
-  -*) as_fn_error $? "unrecognized option: \`$ac_option'
-Try \`$0 --help' for more information"
+  -*) as_fn_error $? "unrecognized option: '$ac_option'
+Try '$0 --help' for more information"
     ;;
 
   *=*)
@@ -1468,7 +1459,7 @@ Try \`$0 --help' for more information"
     # Reject names that are not valid shell variable names.
     case $ac_envvar in #(
       '' | [0-9]* | *[!_$as_cr_alnum]* )
-      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+      as_fn_error $? "invalid variable name: '$ac_envvar'" ;;
     esac
     eval $ac_envvar=\$ac_optarg
     export $ac_envvar ;;
@@ -1518,7 +1509,7 @@ do
   as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
 done
 
-# There might be people who depend on the old broken behavior: `$host'
+# There might be people who depend on the old broken behavior: '$host'
 # used to hold the argument of --host etc.
 # FIXME: To remove some day.
 build=$build_alias
@@ -1586,7 +1577,7 @@ if test ! -r "$srcdir/$ac_unique_file"; then
   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
   as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
 fi
-ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_msg="sources are in $srcdir, but 'cd $srcdir' does not work"
 ac_abs_confdir=`(
 	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
 	pwd)`
@@ -1614,7 +1605,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures this package to adapt to many kinds of systems.
+'configure' configures this package to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1628,11 +1619,11 @@ Configuration:
       --help=short        display options specific to this package
       --help=recursive    display the short help of all the included packages
   -V, --version           display version information and exit
-  -q, --quiet, --silent   do not print \`checking ...' messages
+  -q, --quiet, --silent   do not print 'checking ...' messages
       --cache-file=FILE   cache test results in FILE [disabled]
-  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -C, --config-cache      alias for '--cache-file=config.cache'
   -n, --no-create         do not create output files
-      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+      --srcdir=DIR        find the sources in DIR [configure dir or '..']
 
 Installation directories:
   --prefix=PREFIX         install architecture-independent files in PREFIX
@@ -1640,10 +1631,10 @@ Installation directories:
   --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                           [PREFIX]
 
-By default, \`make install' will install all the files in
-\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
-an installation prefix other than \`$ac_default_prefix' using \`--prefix',
-for instance \`--prefix=\$HOME'.
+By default, 'make install' will install all the files in
+'$ac_default_prefix/bin', '$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than '$ac_default_prefix' using '--prefix',
+for instance '--prefix=\$HOME'.
 
 For better control, use the options below.
 
@@ -1855,7 +1846,6 @@ Some influential environment variables:
               you have headers in a nonstandard directory <include dir>
   CXX         C++ compiler command
   CXXFLAGS    C++ compiler flags
-  CPP         C preprocessor
   PKG_CONFIG  path to pkg-config utility
   PKG_CONFIG_PATH
               directories to add to pkg-config's search path
@@ -1911,7 +1901,7 @@ Some influential environment variables:
   READLINE_LIBS
               linker flags for readline
 
-Use these variables to override the choices made by `configure' or to help
+Use these variables to override the choices made by 'configure' or to help
 it to find libraries and programs with nonstandard names/locations.
 
 Report bugs to the package provider.
@@ -1979,9 +1969,9 @@ test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
 configure
-generated by GNU Autoconf 2.71
+generated by GNU Autoconf 2.72
 
-Copyright (C) 2021 Free Software Foundation, Inc.
+Copyright (C) 2023 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -2020,11 +2010,12 @@ printf "%s\n" "$ac_try_echo"; } >&5
        } && test -s conftest.$ac_objext
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
@@ -2059,55 +2050,18 @@ printf "%s\n" "$ac_try_echo"; } >&5
        } && test -s conftest.$ac_objext
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
 
 } # ac_fn_cxx_try_compile
 
-# ac_fn_c_try_cpp LINENO
-# ----------------------
-# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_cpp ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if { { ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
-  ac_status=$?
-  if test -s conftest.err; then
-    grep -v '^ *+' conftest.err >conftest.er1
-    cat conftest.er1 >&5
-    mv -f conftest.er1 conftest.err
-  fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } > conftest.i && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }
-then :
-  ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-    ac_retval=1
-fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_cpp
-
 # ac_fn_c_try_link LINENO
 # -----------------------
 # Try to link conftest.$ac_ext, and return whether this succeeded.
@@ -2139,11 +2093,12 @@ printf "%s\n" "$ac_try_echo"; } >&5
        }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_retval=1
+	ac_retval=1 ;;
+esac
 fi
   # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
   # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
@@ -2167,8 +2122,8 @@ printf %s "checking for $2... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
 #include <$2>
@@ -2176,10 +2131,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2200,8 +2157,8 @@ printf %s "checking for $2... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
@@ -2231,12 +2188,14 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  eval "$3=yes"
+else case e in #(
+  e) eval "$3=yes" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2257,8 +2216,8 @@ printf %s "checking for $2.$3... " >&6; }
 if eval test \${$4+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $5
 int
@@ -2274,8 +2233,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$4=yes"
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $5
 int
@@ -2291,12 +2250,15 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$4=yes"
-else $as_nop
-  eval "$4=no"
+else case e in #(
+  e) eval "$4=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$4
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2317,8 +2279,8 @@ printf %s "checking for int$2_t... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no"
      # Order is important - never check a type that is potentially smaller
      # than half of the expected target width.
      for ac_type in int$2_t 'int' 'long int' \
@@ -2359,12 +2321,13 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  case $ac_type in #(
+else case e in #(
+  e) case $ac_type in #(
   int$2_t) :
     eval "$3=yes" ;; #(
   *) :
     eval "$3=\$ac_type" ;;
+esac ;;
 esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
@@ -2373,10 +2336,12 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
        if eval test \"x\$"$3"\" = x"no"
 then :
 
-else $as_nop
-  break
+else case e in #(
+  e) break ;;
+esac
 fi
-     done
+     done ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2397,8 +2362,8 @@ printf %s "checking for uint$2_t... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no"
      # Order is important - never check a type that is potentially smaller
      # than half of the expected target width.
      for ac_type in uint$2_t 'unsigned int' 'unsigned long int' \
@@ -2430,10 +2395,12 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
        if eval test \"x\$"$3"\" = x"no"
 then :
 
-else $as_nop
-  break
+else case e in #(
+  e) break ;;
+esac
 fi
-     done
+     done ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2453,15 +2420,15 @@ printf %s "checking for $2... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 /* Define $2 to an innocuous variant, in case <limits.h> declares $2.
    For example, HP-UX 11i <limits.h> declares gettimeofday.  */
 #define $2 innocuous_$2
 
 /* System header to define __stub macros and hopefully few prototypes,
-   which can conflict with char $2 (); below.  */
+   which can conflict with char $2 (void); below.  */
 
 #include <limits.h>
 #undef $2
@@ -2472,7 +2439,7 @@ else $as_nop
 #ifdef __cplusplus
 extern "C"
 #endif
-char $2 ();
+char $2 (void);
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
@@ -2491,11 +2458,13 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2534,12 +2503,13 @@ printf "%s\n" "$ac_try_echo"; } >&5
   test $ac_status = 0; }; }
 then :
   ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: program exited with status $ac_status" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: program exited with status $ac_status" >&5
        printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-       ac_retval=$ac_status
+       ac_retval=$ac_status ;;
+esac
 fi
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
@@ -2560,8 +2530,8 @@ printf %s "checking whether $as_decl_name is declared... " >&6; }
 if eval test \${$3+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+else case e in #(
+  e) as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
   eval ac_save_FLAGS=\$$6
   as_fn_append $6 " $5"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -2585,12 +2555,14 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$3=yes"
-else $as_nop
-  eval "$3=no"
+else case e in #(
+  e) eval "$3=no" ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   eval $6=\$ac_save_FLAGS
-
+ ;;
+esac
 fi
 eval ac_res=\$$3
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -2623,7 +2595,7 @@ This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by $as_me, which was
-generated by GNU Autoconf 2.71.  Invocation command line was
+generated by GNU Autoconf 2.72.  Invocation command line was
 
   $ $0$ac_configure_args_raw
 
@@ -2869,10 +2841,10 @@ esac
 printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
     . "$ac_site_file" \
-      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "failed to load site script $ac_site_file
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
   fi
 done
 
@@ -2908,9 +2880,7 @@ struct stat;
 /* Most of the following tests are stolen from RCS 5.7 src/conf.sh.  */
 struct buf { int x; };
 struct buf * (*rcsopen) (struct buf *, struct stat *, int);
-static char *e (p, i)
-     char **p;
-     int i;
+static char *e (char **p, int i)
 {
   return p[i];
 }
@@ -2924,6 +2894,21 @@ static char *f (char * (*g) (char **, int), char **p, ...)
   return s;
 }
 
+/* C89 style stringification. */
+#define noexpand_stringify(a) #a
+const char *stringified = noexpand_stringify(arbitrary+token=sequence);
+
+/* C89 style token pasting.  Exercises some of the corner cases that
+   e.g. old MSVC gets wrong, but not very hard. */
+#define noexpand_concat(a,b) a##b
+#define expand_concat(a,b) noexpand_concat(a,b)
+extern int vA;
+extern int vbee;
+#define aye A
+#define bee B
+int *pvA = &expand_concat(v,aye);
+int *pvbee = &noexpand_concat(v,bee);
+
 /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
    function prototypes and stuff, but not \xHH hex character constants.
    These do not provoke an error unfortunately, instead are silently treated
@@ -2951,16 +2936,19 @@ ok |= (argc == 0 || f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]);
 
 # Test code for whether the C compiler supports C99 (global declarations)
 ac_c_conftest_c99_globals='
-// Does the compiler advertise C99 conformance?
+/* Does the compiler advertise C99 conformance? */
 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L
 # error "Compiler does not advertise C99 conformance"
 #endif
 
+// See if C++-style comments work.
+
 #include <stdbool.h>
 extern int puts (const char *);
 extern int printf (const char *, ...);
 extern int dprintf (int, const char *, ...);
 extern void *malloc (size_t);
+extern void free (void *);
 
 // Check varargs macros.  These examples are taken from C99 6.10.3.5.
 // dprintf is used instead of fprintf to avoid needing to declare
@@ -3010,7 +2998,6 @@ typedef const char *ccp;
 static inline int
 test_restrict (ccp restrict text)
 {
-  // See if C++-style comments work.
   // Iterate through items via the restricted pointer.
   // Also check for declarations in for loops.
   for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i)
@@ -3076,6 +3063,8 @@ ac_c_conftest_c99_main='
   ia->datasize = 10;
   for (int i = 0; i < ia->datasize; ++i)
     ia->data[i] = i * 1.234;
+  // Work around memory leak warnings.
+  free (ia);
 
   // Check named initializers.
   struct named_init ni = {
@@ -3097,7 +3086,7 @@ ac_c_conftest_c99_main='
 
 # Test code for whether the C compiler supports C11 (global declarations)
 ac_c_conftest_c11_globals='
-// Does the compiler advertise C11 conformance?
+/* Does the compiler advertise C11 conformance? */
 #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L
 # error "Compiler does not advertise C11 conformance"
 #endif
@@ -3513,8 +3502,9 @@ IFS=$as_save_IFS
 if $as_found
 then :
 
-else $as_nop
-  as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "cannot find required auxiliary files:$ac_missing_aux_files" "$LINENO" 5 ;;
+esac
 fi
 
 
@@ -3542,12 +3532,12 @@ for ac_var in $ac_precious_vars; do
   eval ac_new_val=\$ac_env_${ac_var}_value
   case $ac_old_set,$ac_new_set in
     set,)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&5
+printf "%s\n" "$as_me: error: '$ac_var' was set to '$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' was not set in the previous run" >&5
+printf "%s\n" "$as_me: error: '$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
     *)
@@ -3556,18 +3546,18 @@ printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
 	ac_old_val_w=`echo x $ac_old_val`
 	ac_new_val_w=`echo x $ac_new_val`
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
-printf "%s\n" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: '$ac_var' has changed since the previous run:" >&5
+printf "%s\n" "$as_me: error: '$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
-printf "%s\n" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&5
+printf "%s\n" "$as_me: warning: ignoring whitespace changes in '$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
-printf "%s\n" "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
-printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  '$ac_old_val'" >&5
+printf "%s\n" "$as_me:   former value:  '$ac_old_val'" >&2;}
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: '$ac_new_val'" >&5
+printf "%s\n" "$as_me:   current value: '$ac_new_val'" >&2;}
       fi;;
   esac
   # Pass precious variables to config.status.
@@ -3583,11 +3573,11 @@ printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
   fi
 done
 if $ac_cache_corrupted; then
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
 printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
-  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
+  as_fn_error $? "run '${MAKE-make} distclean' and/or 'rm $cache_file'
 	    and start over" "$LINENO" 5
 fi
 ## -------------------- ##
@@ -3622,15 +3612,16 @@ printf %s "checking build system type... " >&6; }
 if test ${ac_cv_build+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_build_alias=$build_alias
+else case e in #(
+  e) ac_build_alias=$build_alias
 test "x$ac_build_alias" = x &&
   ac_build_alias=`$SHELL "${ac_aux_dir}config.guess"`
 test "x$ac_build_alias" = x &&
   as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
 ac_cv_build=`$SHELL "${ac_aux_dir}config.sub" $ac_build_alias` ||
   as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $ac_build_alias failed" "$LINENO" 5
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
 printf "%s\n" "$ac_cv_build" >&6; }
@@ -3657,14 +3648,15 @@ printf %s "checking host system type... " >&6; }
 if test ${ac_cv_host+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "x$host_alias" = x; then
+else case e in #(
+  e) if test "x$host_alias" = x; then
   ac_cv_host=$ac_cv_build
 else
   ac_cv_host=`$SHELL "${ac_aux_dir}config.sub" $host_alias` ||
     as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $host_alias failed" "$LINENO" 5
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
 printf "%s\n" "$ac_cv_host" >&6; }
@@ -3691,14 +3683,15 @@ printf %s "checking target system type... " >&6; }
 if test ${ac_cv_target+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "x$target_alias" = x; then
+else case e in #(
+  e) if test "x$target_alias" = x; then
   ac_cv_target=$ac_cv_host
 else
   ac_cv_target=`$SHELL "${ac_aux_dir}config.sub" $target_alias` ||
     as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $target_alias failed" "$LINENO" 5
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_target" >&5
 printf "%s\n" "$ac_cv_target" >&6; }
@@ -3772,8 +3765,8 @@ printf %s "checking for a sed that does not truncate output... " >&6; }
 if test ${ac_cv_path_SED+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+else case e in #(
+  e)           ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
      for ac_i in 1 2 3 4 5 6 7; do
        ac_script="$ac_script$as_nl$ac_script"
      done
@@ -3798,9 +3791,10 @@ do
       as_fn_executable_p "$ac_path_SED" || continue
 # Check for GNU ac_path_SED and select it if it is found.
   # Check for GNU $ac_path_SED
-case `"$ac_path_SED" --version 2>&1` in
+case `"$ac_path_SED" --version 2>&1` in #(
 *GNU*)
   ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+#(
 *)
   ac_count=0
   printf %s 0123456789 >"conftest.in"
@@ -3835,7 +3829,8 @@ IFS=$as_save_IFS
 else
   ac_cv_path_SED=$SED
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
 printf "%s\n" "$ac_cv_path_SED" >&6; }
@@ -3851,8 +3846,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_AWK+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$AWK"; then
+else case e in #(
+  e) if test -n "$AWK"; then
   ac_cv_prog_AWK="$AWK" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3874,7 +3869,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 AWK=$ac_cv_prog_AWK
 if test -n "$AWK"; then
@@ -3913,8 +3909,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3936,7 +3932,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -3958,8 +3955,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3981,7 +3978,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
@@ -4016,8 +4014,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4039,7 +4037,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -4061,8 +4060,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
   ac_prog_rejected=no
@@ -4101,7 +4100,8 @@ if test $ac_prog_rejected = yes; then
     ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@"
   fi
 fi
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -4125,8 +4125,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4148,7 +4148,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -4174,8 +4175,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4197,7 +4198,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
@@ -4235,8 +4237,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CC"; then
+else case e in #(
+  e) if test -n "$CC"; then
   ac_cv_prog_CC="$CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4258,7 +4260,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
@@ -4280,8 +4283,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CC"; then
+else case e in #(
+  e) if test -n "$ac_ct_CC"; then
   ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4303,7 +4306,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
@@ -4332,10 +4336,10 @@ fi
 fi
 
 
-test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+test -z "$CC" && { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
 printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
@@ -4407,8 +4411,8 @@ printf "%s\n" "$ac_try_echo"; } >&5
   printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
-  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
-# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+  # Autoconf-2.13 could set the ac_cv_exeext variable to 'no'.
+# So ignore a value of 'no', otherwise this would lead to 'EXEEXT = no'
 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
 # so that the user can short-circuit this test for compilers unknown to
 # Autoconf.
@@ -4428,7 +4432,7 @@ do
 	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 	fi
 	# We set ac_cv_exeext here because the later test for it is not
-	# safe: cross compilers may not add the suffix if given an `-o'
+	# safe: cross compilers may not add the suffix if given an '-o'
 	# argument, so we may need to know it at that point already.
 	# Even if this section looks crufty: it has the advantage of
 	# actually working.
@@ -4439,8 +4443,9 @@ do
 done
 test "$ac_cv_exeext" = no && ac_cv_exeext=
 
-else $as_nop
-  ac_file=''
+else case e in #(
+  e) ac_file='' ;;
+esac
 fi
 if test -z "$ac_file"
 then :
@@ -4449,13 +4454,14 @@ printf "%s\n" "no" >&6; }
 printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "C compiler cannot create executables
-See \`config.log' for more details" "$LINENO" 5; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-printf "%s\n" "yes" >&6; }
+See 'config.log' for more details" "$LINENO" 5; }
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+printf "%s\n" "yes" >&6; } ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
 printf %s "checking for C compiler default output file name... " >&6; }
@@ -4479,10 +4485,10 @@ printf "%s\n" "$ac_try_echo"; } >&5
   printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }
 then :
-  # If both `conftest.exe' and `conftest' are `present' (well, observable)
-# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
-# work properly (i.e., refer to `conftest.exe'), while it won't with
-# `rm'.
+  # If both 'conftest.exe' and 'conftest' are 'present' (well, observable)
+# catch 'conftest.exe'.  For instance with Cygwin, 'ls conftest' will
+# work properly (i.e., refer to 'conftest.exe'), while it won't with
+# 'rm'.
 for ac_file in conftest.exe conftest conftest.*; do
   test -f "$ac_file" || continue
   case $ac_file in
@@ -4492,11 +4498,12 @@ for ac_file in conftest.exe conftest conftest.*; do
     * ) break;;
   esac
 done
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+else case e in #(
+  e) { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
 rm -f conftest conftest$ac_cv_exeext
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
@@ -4512,6 +4519,8 @@ int
 main (void)
 {
 FILE *f = fopen ("conftest.out", "w");
+ if (!f)
+  return 1;
  return ferror (f) || fclose (f) != 0;
 
   ;
@@ -4551,26 +4560,27 @@ printf "%s\n" "$ac_try_echo"; } >&5
     if test "$cross_compiling" = maybe; then
 	cross_compiling=yes
     else
-	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+	{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error 77 "cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details" "$LINENO" 5; }
+If you meant to cross compile, use '--host'.
+See 'config.log' for more details" "$LINENO" 5; }
     fi
   fi
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
 printf "%s\n" "$cross_compiling" >&6; }
 
-rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+rm -f conftest.$ac_ext conftest$ac_cv_exeext \
+  conftest.o conftest.obj conftest.out
 ac_clean_files=$ac_clean_files_save
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
 printf %s "checking for suffix of object files... " >&6; }
 if test ${ac_cv_objext+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4602,16 +4612,18 @@ then :
        break;;
   esac
 done
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
+else case e in #(
+  e) printf "%s\n" "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+{ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of object files: cannot compile
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; } ;;
+esac
 fi
-rm -f conftest.$ac_cv_objext conftest.$ac_ext
+rm -f conftest.$ac_cv_objext conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
 printf "%s\n" "$ac_cv_objext" >&6; }
@@ -4622,8 +4634,8 @@ printf %s "checking whether the compiler supports GNU C... " >&6; }
 if test ${ac_cv_c_compiler_gnu+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -4640,12 +4652,14 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_compiler_gnu=yes
-else $as_nop
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
 printf "%s\n" "$ac_cv_c_compiler_gnu" >&6; }
@@ -4663,8 +4677,8 @@ printf %s "checking whether $CC accepts -g... " >&6; }
 if test ${ac_cv_prog_cc_g+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_c_werror_flag=$ac_c_werror_flag
+else case e in #(
+  e) ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
    CFLAGS="-g"
@@ -4682,8 +4696,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_prog_cc_g=yes
-else $as_nop
-  CFLAGS=""
+else case e in #(
+  e) CFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -4698,8 +4712,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  ac_c_werror_flag=$ac_save_c_werror_flag
+else case e in #(
+  e) ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4716,12 +4730,15 @@ if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_prog_cc_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-   ac_c_werror_flag=$ac_save_c_werror_flag
+   ac_c_werror_flag=$ac_save_c_werror_flag ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
 printf "%s\n" "$ac_cv_prog_cc_g" >&6; }
@@ -4748,8 +4765,8 @@ printf %s "checking for $CC option to enable C11 features... " >&6; }
 if test ${ac_cv_prog_cc_c11+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c11=no
+else case e in #(
+  e) ac_cv_prog_cc_c11=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4766,25 +4783,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c11" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c11" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c11" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c11" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c11" >&5
 printf "%s\n" "$ac_cv_prog_cc_c11" >&6; }
-     CC="$CC $ac_cv_prog_cc_c11"
+     CC="$CC $ac_cv_prog_cc_c11" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11
-  ac_prog_cc_stdc=c11
+  ac_prog_cc_stdc=c11 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
@@ -4794,8 +4814,8 @@ printf %s "checking for $CC option to enable C99 features... " >&6; }
 if test ${ac_cv_prog_cc_c99+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c99=no
+else case e in #(
+  e) ac_cv_prog_cc_c99=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4812,25 +4832,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c99" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c99" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c99" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c99" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
 printf "%s\n" "$ac_cv_prog_cc_c99" >&6; }
-     CC="$CC $ac_cv_prog_cc_c99"
+     CC="$CC $ac_cv_prog_cc_c99" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
-  ac_prog_cc_stdc=c99
+  ac_prog_cc_stdc=c99 ;;
+esac
 fi
 fi
 if test x$ac_prog_cc_stdc = xno
@@ -4840,8 +4863,8 @@ printf %s "checking for $CC option to enable C89 features... " >&6; }
 if test ${ac_cv_prog_cc_c89+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cc_c89=no
+else case e in #(
+  e) ac_cv_prog_cc_c89=no
 ac_save_CC=$CC
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -4858,25 +4881,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC
+CC=$ac_save_CC ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cc_c89" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cc_c89" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cc_c89" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
 printf "%s\n" "$ac_cv_prog_cc_c89" >&6; }
-     CC="$CC $ac_cv_prog_cc_c89"
+     CC="$CC $ac_cv_prog_cc_c89" ;;
+esac
 fi
   ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
-  ac_prog_cc_stdc=c89
+  ac_prog_cc_stdc=c89 ;;
+esac
 fi
 fi
 
@@ -4911,8 +4937,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$CXX"; then
+else case e in #(
+  e) if test -n "$CXX"; then
   ac_cv_prog_CXX="$CXX" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4934,7 +4960,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 CXX=$ac_cv_prog_CXX
 if test -n "$CXX"; then
@@ -4960,8 +4987,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_CXX+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_CXX"; then
+else case e in #(
+  e) if test -n "$ac_ct_CXX"; then
   ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -4983,7 +5010,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
 if test -n "$ac_ct_CXX"; then
@@ -5043,8 +5071,8 @@ printf %s "checking whether the compiler supports GNU C++... " >&6; }
 if test ${ac_cv_cxx_compiler_gnu+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -5061,12 +5089,14 @@ _ACEOF
 if ac_fn_cxx_try_compile "$LINENO"
 then :
   ac_compiler_gnu=yes
-else $as_nop
-  ac_compiler_gnu=no
+else case e in #(
+  e) ac_compiler_gnu=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
 printf "%s\n" "$ac_cv_cxx_compiler_gnu" >&6; }
@@ -5084,8 +5114,8 @@ printf %s "checking whether $CXX accepts -g... " >&6; }
 if test ${ac_cv_prog_cxx_g+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+else case e in #(
+  e) ac_save_cxx_werror_flag=$ac_cxx_werror_flag
    ac_cxx_werror_flag=yes
    ac_cv_prog_cxx_g=no
    CXXFLAGS="-g"
@@ -5103,8 +5133,8 @@ _ACEOF
 if ac_fn_cxx_try_compile "$LINENO"
 then :
   ac_cv_prog_cxx_g=yes
-else $as_nop
-  CXXFLAGS=""
+else case e in #(
+  e) CXXFLAGS=""
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -5119,8 +5149,8 @@ _ACEOF
 if ac_fn_cxx_try_compile "$LINENO"
 then :
 
-else $as_nop
-  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+else case e in #(
+  e) ac_cxx_werror_flag=$ac_save_cxx_werror_flag
 	 CXXFLAGS="-g"
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -5137,12 +5167,15 @@ if ac_fn_cxx_try_compile "$LINENO"
 then :
   ac_cv_prog_cxx_g=yes
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
 printf "%s\n" "$ac_cv_prog_cxx_g" >&6; }
@@ -5169,8 +5202,8 @@ printf %s "checking for $CXX option to enable C++11 features... " >&6; }
 if test ${ac_cv_prog_cxx_cxx11+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cxx_cxx11=no
+else case e in #(
+  e) ac_cv_prog_cxx_cxx11=no
 ac_save_CXX=$CXX
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -5187,25 +5220,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cxx_cxx11" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CXX=$ac_save_CXX
+CXX=$ac_save_CXX ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cxx_cxx11" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cxx_cxx11" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cxx_cxx11" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx11" >&5
 printf "%s\n" "$ac_cv_prog_cxx_cxx11" >&6; }
-     CXX="$CXX $ac_cv_prog_cxx_cxx11"
+     CXX="$CXX $ac_cv_prog_cxx_cxx11" ;;
+esac
 fi
   ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx11
-  ac_prog_cxx_stdcxx=cxx11
+  ac_prog_cxx_stdcxx=cxx11 ;;
+esac
 fi
 fi
 if test x$ac_prog_cxx_stdcxx = xno
@@ -5215,8 +5251,8 @@ printf %s "checking for $CXX option to enable C++98 features... " >&6; }
 if test ${ac_cv_prog_cxx_cxx98+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_prog_cxx_cxx98=no
+else case e in #(
+  e) ac_cv_prog_cxx_cxx98=no
 ac_save_CXX=$CXX
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -5233,25 +5269,28 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam
   test "x$ac_cv_prog_cxx_cxx98" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CXX=$ac_save_CXX
+CXX=$ac_save_CXX ;;
+esac
 fi
 
 if test "x$ac_cv_prog_cxx_cxx98" = xno
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 printf "%s\n" "unsupported" >&6; }
-else $as_nop
-  if test "x$ac_cv_prog_cxx_cxx98" = x
+else case e in #(
+  e) if test "x$ac_cv_prog_cxx_cxx98" = x
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 printf "%s\n" "none needed" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_cxx98" >&5
 printf "%s\n" "$ac_cv_prog_cxx_cxx98" >&6; }
-     CXX="$CXX $ac_cv_prog_cxx_cxx98"
+     CXX="$CXX $ac_cv_prog_cxx_cxx98" ;;
+esac
 fi
   ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx98
-  ac_prog_cxx_stdcxx=cxx98
+  ac_prog_cxx_stdcxx=cxx98 ;;
+esac
 fi
 fi
 
@@ -5266,326 +5305,6 @@ CXXFLAGS=$save_CXXFLAGS
 PATH_SBIN="$PATH:/usr/sbin:/sbin"
 
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
-printf %s "checking how to run the C preprocessor... " >&6; }
-# On Suns, sometimes $CPP names a directory.
-if test -n "$CPP" && test -d "$CPP"; then
-  CPP=
-fi
-if test -z "$CPP"; then
-  if test ${ac_cv_prog_CPP+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-      # Double quotes because $CC needs to be expanded
-    for CPP in "$CC -E" "$CC -E -traditional-cpp" cpp /lib/cpp
-    do
-      ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
-do
-  # Use a header file that comes with gcc, so configuring glibc
-  # with a fresh cross-compiler works.
-  # On the NeXT, cc -E runs the code through the compiler's parser,
-  # not just through cpp. "Syntax error" is here to catch this case.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <limits.h>
-		     Syntax error
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"
-then :
-
-else $as_nop
-  # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-  # OK, works on sane cases.  Now check whether nonexistent headers
-  # can be detected and how.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ac_nonexistent.h>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"
-then :
-  # Broken: success on invalid input.
-continue
-else $as_nop
-  # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok
-then :
-  break
-fi
-
-    done
-    ac_cv_prog_CPP=$CPP
-
-fi
-  CPP=$ac_cv_prog_CPP
-else
-  ac_cv_prog_CPP=$CPP
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
-printf "%s\n" "$CPP" >&6; }
-ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
-do
-  # Use a header file that comes with gcc, so configuring glibc
-  # with a fresh cross-compiler works.
-  # On the NeXT, cc -E runs the code through the compiler's parser,
-  # not just through cpp. "Syntax error" is here to catch this case.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <limits.h>
-		     Syntax error
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"
-then :
-
-else $as_nop
-  # Broken: fails on valid input.
-continue
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-  # OK, works on sane cases.  Now check whether nonexistent headers
-  # can be detected and how.
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <ac_nonexistent.h>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"
-then :
-  # Broken: success on invalid input.
-continue
-else $as_nop
-  # Passes both tests.
-ac_preproc_ok=:
-break
-fi
-rm -f conftest.err conftest.i conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.i conftest.err conftest.$ac_ext
-if $ac_preproc_ok
-then :
-
-else $as_nop
-  { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details" "$LINENO" 5; }
-fi
-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
-printf %s "checking for grep that handles long lines and -e... " >&6; }
-if test ${ac_cv_path_GREP+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if test -z "$GREP"; then
-  ac_path_GREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
-  IFS=$as_save_IFS
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-    for ac_prog in grep ggrep
-   do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_GREP" || continue
-# Check for GNU ac_path_GREP and select it if it is found.
-  # Check for GNU $ac_path_GREP
-case `"$ac_path_GREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
-*)
-  ac_count=0
-  printf %s 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'GREP' >> "conftest.nl"
-    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_GREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_GREP="$ac_path_GREP"
-      ac_path_GREP_max=$ac_count
-    fi
-    # 10*(2^10) chars as input seems more than enough
-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-      $ac_path_GREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_GREP"; then
-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
-  fi
-else
-  ac_cv_path_GREP=$GREP
-fi
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
-printf "%s\n" "$ac_cv_path_GREP" >&6; }
- GREP="$ac_cv_path_GREP"
-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
-printf %s "checking for egrep... " >&6; }
-if test ${ac_cv_path_EGREP+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
-   then ac_cv_path_EGREP="$GREP -E"
-   else
-     if test -z "$EGREP"; then
-  ac_path_EGREP_found=false
-  # Loop through the user's path and test for each of PROGNAME-LIST
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
-do
-  IFS=$as_save_IFS
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-    for ac_prog in egrep
-   do
-    for ac_exec_ext in '' $ac_executable_extensions; do
-      ac_path_EGREP="$as_dir$ac_prog$ac_exec_ext"
-      as_fn_executable_p "$ac_path_EGREP" || continue
-# Check for GNU ac_path_EGREP and select it if it is found.
-  # Check for GNU $ac_path_EGREP
-case `"$ac_path_EGREP" --version 2>&1` in
-*GNU*)
-  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
-*)
-  ac_count=0
-  printf %s 0123456789 >"conftest.in"
-  while :
-  do
-    cat "conftest.in" "conftest.in" >"conftest.tmp"
-    mv "conftest.tmp" "conftest.in"
-    cp "conftest.in" "conftest.nl"
-    printf "%s\n" 'EGREP' >> "conftest.nl"
-    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
-    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    as_fn_arith $ac_count + 1 && ac_count=$as_val
-    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
-      # Best one so far, save it but keep looking for a better one
-      ac_cv_path_EGREP="$ac_path_EGREP"
-      ac_path_EGREP_max=$ac_count
-    fi
-    # 10*(2^10) chars as input seems more than enough
-    test $ac_count -gt 10 && break
-  done
-  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-esac
-
-      $ac_path_EGREP_found && break 3
-    done
-  done
-  done
-IFS=$as_save_IFS
-  if test -z "$ac_cv_path_EGREP"; then
-    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
-  fi
-else
-  ac_cv_path_EGREP=$EGREP
-fi
-
-   fi
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
-printf "%s\n" "$ac_cv_path_EGREP" >&6; }
- EGREP="$ac_cv_path_EGREP"
-
-
-if test $ac_cv_c_compiler_gnu = yes; then
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC needs -traditional" >&5
-printf %s "checking whether $CC needs -traditional... " >&6; }
-if test ${ac_cv_prog_gcc_traditional+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-    ac_pattern="Autoconf.*'x'"
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sgtty.h>
-Autoconf TIOCGETP
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "$ac_pattern" >/dev/null 2>&1
-then :
-  ac_cv_prog_gcc_traditional=yes
-else $as_nop
-  ac_cv_prog_gcc_traditional=no
-fi
-rm -rf conftest*
-
-
-  if test $ac_cv_prog_gcc_traditional = no; then
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <termio.h>
-Autoconf TCGETA
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "$ac_pattern" >/dev/null 2>&1
-then :
-  ac_cv_prog_gcc_traditional=yes
-fi
-rm -rf conftest*
-
-  fi
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_gcc_traditional" >&5
-printf "%s\n" "$ac_cv_prog_gcc_traditional" >&6; }
-  if test $ac_cv_prog_gcc_traditional = yes; then
-    CC="$CC -traditional"
-  fi
-fi
-
 
   # Find a good install program.  We prefer a C program (faster),
 # so one script is as good as another.  But avoid the broken or
@@ -5607,8 +5326,8 @@ if test -z "$INSTALL"; then
 if test ${ac_cv_path_install+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
@@ -5662,7 +5381,8 @@ esac
 IFS=$as_save_IFS
 
 rm -rf conftest.one conftest.two conftest.dir
-
+ ;;
+esac
 fi
   if test ${ac_cv_path_install+y}; then
     INSTALL=$ac_cv_path_install
@@ -5696,6 +5416,154 @@ else
 printf "%s\n" "no, using $LN_S" >&6; }
 fi
 
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+printf %s "checking for grep that handles long lines and -e... " >&6; }
+if test ${ac_cv_path_GREP+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_prog in grep ggrep
+   do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in #(
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+#(
+*)
+  ac_count=0
+  printf %s 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    printf "%s\n" 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+ ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+printf "%s\n" "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+printf %s "checking for egrep... " >&6; }
+if test ${ac_cv_path_EGREP+y}
+then :
+  printf %s "(cached) " >&6
+else case e in #(
+  e) if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_prog in egrep
+   do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in #(
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+#(
+*)
+  ac_count=0
+  printf %s 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    printf "%s\n" 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi ;;
+esac
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+printf "%s\n" "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+         EGREP_TRADITIONAL=$EGREP
+ ac_cv_path_EGREP_TRADITIONAL=$EGREP
+
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
 printf %s "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
 set x ${MAKE-make}
@@ -5703,8 +5571,8 @@ ac_make=`printf "%s\n" "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
 if eval test \${ac_cv_prog_make_${ac_make}_set+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat >conftest.make <<\_ACEOF
+else case e in #(
+  e) cat >conftest.make <<\_ACEOF
 SHELL = /bin/sh
 all:
 	@echo '@@@%%%=$(MAKE)=@@@%%%'
@@ -5716,7 +5584,8 @@ case `${MAKE-make} -f conftest.make 2>/dev/null` in
   *)
     eval ac_cv_prog_make_${ac_make}_set=no;;
 esac
-rm -f conftest.make
+rm -f conftest.make ;;
+esac
 fi
 if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
@@ -5735,8 +5604,8 @@ if test -z "$MKDIR_P"; then
   if test ${ac_cv_path_mkdir+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+else case e in #(
+  e) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
 do
   IFS=$as_save_IFS
@@ -5750,7 +5619,7 @@ do
 	   as_fn_executable_p "$as_dir$ac_prog$ac_exec_ext" || continue
 	   case `"$as_dir$ac_prog$ac_exec_ext" --version 2>&1` in #(
 	     'mkdir ('*'coreutils) '* | \
-	     'BusyBox '* | \
+	     *'BusyBox '* | \
 	     'mkdir (fileutils) '4.1*)
 	       ac_cv_path_mkdir=$as_dir$ac_prog$ac_exec_ext
 	       break 3;;
@@ -5759,18 +5628,17 @@ do
        done
   done
 IFS=$as_save_IFS
-
+ ;;
+esac
 fi
 
   test -d ./--version && rmdir ./--version
   if test ${ac_cv_path_mkdir+y}; then
     MKDIR_P="$ac_cv_path_mkdir -p"
   else
-    # As a last resort, use the slow shell script.  Don't cache a
-    # value for MKDIR_P within a source directory, because that will
-    # break other packages using the cache if that directory is
-    # removed, or if the value is a relative name.
-    MKDIR_P="$ac_install_sh -d"
+    # As a last resort, use plain mkdir -p,
+    # in the hope it doesn't have the bugs of ancient mkdir.
+    MKDIR_P='mkdir -p'
   fi
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
@@ -5784,8 +5652,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_RANLIB+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$RANLIB"; then
+else case e in #(
+  e) if test -n "$RANLIB"; then
   ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5807,7 +5675,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 RANLIB=$ac_cv_prog_RANLIB
 if test -n "$RANLIB"; then
@@ -5829,8 +5698,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_RANLIB+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_RANLIB"; then
+else case e in #(
+  e) if test -n "$ac_ct_RANLIB"; then
   ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5852,7 +5721,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
 if test -n "$ac_ct_RANLIB"; then
@@ -5886,8 +5756,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_READELF+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$READELF"; then
+else case e in #(
+  e) if test -n "$READELF"; then
   ac_cv_prog_READELF="$READELF" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5909,7 +5779,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 READELF=$ac_cv_prog_READELF
 if test -n "$READELF"; then
@@ -5931,8 +5802,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_READELF+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_READELF"; then
+else case e in #(
+  e) if test -n "$ac_ct_READELF"; then
   ac_cv_prog_ac_ct_READELF="$ac_ct_READELF" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -5954,7 +5825,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_READELF=$ac_cv_prog_ac_ct_READELF
 if test -n "$ac_ct_READELF"; then
@@ -5988,8 +5860,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_AR+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$AR"; then
+else case e in #(
+  e) if test -n "$AR"; then
   ac_cv_prog_AR="$AR" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -6011,7 +5883,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 AR=$ac_cv_prog_AR
 if test -n "$AR"; then
@@ -6033,8 +5906,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_prog_ac_ct_AR+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test -n "$ac_ct_AR"; then
+else case e in #(
+  e) if test -n "$ac_ct_AR"; then
   ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -6056,7 +5929,8 @@ done
   done
 IFS=$as_save_IFS
 
-fi
+fi ;;
+esac
 fi
 ac_ct_AR=$ac_cv_prog_ac_ct_AR
 if test -n "$ac_ct_AR"; then
@@ -6090,8 +5964,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_CFLOW_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $CFLOW_CMD in
+else case e in #(
+  e) case $CFLOW_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_CFLOW_CMD="$CFLOW_CMD" # Let the user override the test with a path.
   ;;
@@ -6116,6 +5990,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 CFLOW_CMD=$ac_cv_path_CFLOW_CMD
@@ -6138,8 +6013,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_CFLOW_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_CFLOW_CMD in
+else case e in #(
+  e) case $ac_pt_CFLOW_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_CFLOW_CMD="$ac_pt_CFLOW_CMD" # Let the user override the test with a path.
   ;;
@@ -6164,6 +6039,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_CFLOW_CMD=$ac_cv_path_ac_pt_CFLOW_CMD
@@ -6198,8 +6074,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_CSCOPE_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $CSCOPE_CMD in
+else case e in #(
+  e) case $CSCOPE_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_CSCOPE_CMD="$CSCOPE_CMD" # Let the user override the test with a path.
   ;;
@@ -6224,6 +6100,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 CSCOPE_CMD=$ac_cv_path_CSCOPE_CMD
@@ -6246,8 +6123,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_CSCOPE_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_CSCOPE_CMD in
+else case e in #(
+  e) case $ac_pt_CSCOPE_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_CSCOPE_CMD="$ac_pt_CSCOPE_CMD" # Let the user override the test with a path.
   ;;
@@ -6272,6 +6149,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_CSCOPE_CMD=$ac_cv_path_ac_pt_CSCOPE_CMD
@@ -6306,8 +6184,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_CHMOD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $CHMOD in
+else case e in #(
+  e) case $CHMOD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_CHMOD="$CHMOD" # Let the user override the test with a path.
   ;;
@@ -6332,6 +6210,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 CHMOD=$ac_cv_path_CHMOD
@@ -6354,8 +6233,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_CHMOD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_CHMOD in
+else case e in #(
+  e) case $ac_pt_CHMOD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_CHMOD="$ac_pt_CHMOD" # Let the user override the test with a path.
   ;;
@@ -6380,6 +6259,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_CHMOD=$ac_cv_path_ac_pt_CHMOD
@@ -6414,8 +6294,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_WC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $WC in
+else case e in #(
+  e) case $WC in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_WC="$WC" # Let the user override the test with a path.
   ;;
@@ -6440,6 +6320,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 WC=$ac_cv_path_WC
@@ -6462,8 +6343,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_WC+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_WC in
+else case e in #(
+  e) case $ac_pt_WC in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_WC="$ac_pt_WC" # Let the user override the test with a path.
   ;;
@@ -6488,6 +6369,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_WC=$ac_cv_path_ac_pt_WC
@@ -6522,8 +6404,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_SORT+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $SORT in
+else case e in #(
+  e) case $SORT in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_SORT="$SORT" # Let the user override the test with a path.
   ;;
@@ -6548,6 +6430,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 SORT=$ac_cv_path_SORT
@@ -6570,8 +6453,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_SORT+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_SORT in
+else case e in #(
+  e) case $ac_pt_SORT in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_SORT="$ac_pt_SORT" # Let the user override the test with a path.
   ;;
@@ -6596,6 +6479,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_SORT=$ac_cv_path_ac_pt_SORT
@@ -6624,16 +6508,17 @@ fi
 
 
 ################################################################################
+
 ac_header_dirent=no
 for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do
-  as_ac_Header=`printf "%s\n" "ac_cv_header_dirent_$ac_hdr" | $as_tr_sh`
+  as_ac_Header=`printf "%s\n" "ac_cv_header_dirent_$ac_hdr" | sed "$as_sed_sh"`
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_hdr that defines DIR" >&5
 printf %s "checking for $ac_hdr that defines DIR... " >&6; }
 if eval test \${$as_ac_Header+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
 #include <$ac_hdr>
@@ -6650,10 +6535,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   eval "$as_ac_Header=yes"
-else $as_nop
-  eval "$as_ac_Header=no"
+else case e in #(
+  e) eval "$as_ac_Header=no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 eval ac_res=\$$as_ac_Header
 	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
@@ -6661,7 +6548,7 @@ printf "%s\n" "$ac_res" >&6; }
 if eval test \"x\$"$as_ac_Header"\" = x"yes"
 then :
   cat >>confdefs.h <<_ACEOF
-#define `printf "%s\n" "HAVE_$ac_hdr" | $as_tr_cpp` 1
+#define `printf "%s\n" "HAVE_$ac_hdr" | sed "$as_sed_cpp"` 1
 _ACEOF
 
 ac_header_dirent=$ac_hdr; break
@@ -6675,15 +6562,21 @@ printf %s "checking for library containing opendir... " >&6; }
 if test ${ac_cv_search_opendir+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_func_search_save_LIBS=$LIBS
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char opendir ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char opendir (void);
 int
 main (void)
 {
@@ -6714,11 +6607,13 @@ done
 if test ${ac_cv_search_opendir+y}
 then :
 
-else $as_nop
-  ac_cv_search_opendir=no
+else case e in #(
+  e) ac_cv_search_opendir=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_opendir" >&5
 printf "%s\n" "$ac_cv_search_opendir" >&6; }
@@ -6735,15 +6630,21 @@ printf %s "checking for library containing opendir... " >&6; }
 if test ${ac_cv_search_opendir+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_func_search_save_LIBS=$LIBS
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char opendir ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char opendir (void);
 int
 main (void)
 {
@@ -6774,11 +6675,13 @@ done
 if test ${ac_cv_search_opendir+y}
 then :
 
-else $as_nop
-  ac_cv_search_opendir=no
+else case e in #(
+  e) ac_cv_search_opendir=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_opendir" >&5
 printf "%s\n" "$ac_cv_search_opendir" >&6; }
@@ -6849,25 +6752,25 @@ printf "%s\n" "#define HAVE__BOOL 1" >>confdefs.h
 
 fi
 
-   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for stdbool.h that conforms to C99" >&5
-printf %s "checking for stdbool.h that conforms to C99... " >&6; }
+   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for stdbool.h that conforms to C99 or later" >&5
+printf %s "checking for stdbool.h that conforms to C99 or later... " >&6; }
 if test ${ac_cv_header_stdbool_h+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdbool.h>
 
-             #ifndef __bool_true_false_are_defined
-               #error "__bool_true_false_are_defined is not defined"
-             #endif
-             char a[__bool_true_false_are_defined == 1 ? 1 : -1];
+             /* "true" and "false" should be usable in #if expressions and
+                integer constant expressions, and "bool" should be a valid
+                type name.
 
-             /* Regardless of whether this is C++ or "_Bool" is a
-                valid type name, "true" and "false" should be usable
-                in #if expressions and integer constant expressions,
-                and "bool" should be a valid type name.  */
+                Although C99 requires bool, true, and false to be macros,
+                C23 and C++11 overrule that, so do not test for that.
+                Although C99 requires __bool_true_false_are_defined and
+                _Bool, C23 says they are obsolescent, so do not require
+                them.  */
 
              #if !true
                #error "'true' is not true"
@@ -6901,43 +6804,12 @@ else $as_nop
              char n[sizeof m == h * sizeof m[0] ? 1 : -1];
              char o[-1 - (bool) 0 < 0 ? 1 : -1];
              /* Catch a bug in an HP-UX C compiler.  See
-         https://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
-         https://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+                https://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+                https://lists.gnu.org/r/bug-coreutils/2005-11/msg00161.html
               */
              bool p = true;
              bool *pp = &p;
 
-             /* C 1999 specifies that bool, true, and false are to be
-                macros, but C++ 2011 and later overrule this.  */
-             #if __cplusplus < 201103
-              #ifndef bool
-               #error "bool is not defined"
-              #endif
-              #ifndef false
-               #error "false is not defined"
-              #endif
-              #ifndef true
-               #error "true is not defined"
-              #endif
-             #endif
-
-             /* If _Bool is available, repeat with it all the tests
-                above that used bool.  */
-             #ifdef HAVE__BOOL
-               struct sB { _Bool s: 1; _Bool t; } t;
-
-               char q[(_Bool) 0.5 == true ? 1 : -1];
-               char r[(_Bool) 0.0 == false ? 1 : -1];
-               char u[sizeof (_Bool) > 0 ? 1 : -1];
-               char v[sizeof t.t > 0 ? 1 : -1];
-
-               _Bool w[h];
-               char x[sizeof m == h * sizeof m[0] ? 1 : -1];
-               char y[-1 - (_Bool) 0 < 0 ? 1 : -1];
-               _Bool z = true;
-               _Bool *pz = &p;
-             #endif
-
 int
 main (void)
 {
@@ -6946,20 +6818,10 @@ main (void)
              *pp |= p;
              *pp |= ! p;
 
-             #ifdef HAVE__BOOL
-               _Bool pt = &t;
-               *pz |= z;
-               *pz |= ! z;
-             #endif
-
              /* Refer to every declared value, so they cannot be
                 discarded as unused.  */
-             return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !j + !k
-                     + !l + !m + !n + !o + !p + !pp + !ps
-             #ifdef HAVE__BOOL
-                     + !q + !r + !u + !v + !w + !x + !y + !z + !pt
-             #endif
-                    );
+             return (!b + !c + !d + !e + !f + !g + !h + !i + !j + !k
+                     + !l + !m + !n + !o + !p + !pp + !ps);
 
   ;
   return 0;
@@ -6968,10 +6830,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_header_stdbool_h=yes
-else $as_nop
-  ac_cv_header_stdbool_h=no
+else case e in #(
+  e) ac_cv_header_stdbool_h=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdbool_h" >&5
 printf "%s\n" "$ac_cv_header_stdbool_h" >&6; }
@@ -6985,16 +6849,17 @@ fi
 
        for ac_header in assert.h ctype.h dirent.h errno.h fcntl.h float.h getopt.h inttypes.h langinfo.h libgen.h limits.h locale.h paths.h signal.h stdarg.h stddef.h stdio.h stdlib.h string.h sys/file.h sys/ioctl.h syslog.h sys/mman.h sys/param.h sys/resource.h sys/stat.h sys/time.h sys/types.h sys/utsname.h sys/wait.h time.h unistd.h
 do :
-  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | $as_tr_sh`
+  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | sed "$as_sed_sh"`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
 if eval test \"x\$"$as_ac_Header"\" = x"yes"
 then :
   cat >>confdefs.h <<_ACEOF
-#define `printf "%s\n" "HAVE_$ac_header" | $as_tr_cpp` 1
+#define `printf "%s\n" "HAVE_$ac_header" | sed "$as_sed_cpp"` 1
 _ACEOF
 
-else $as_nop
-  as_fn_error $? "bailing out" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "bailing out" "$LINENO" 5 ;;
+esac
 fi
 
 done
@@ -7043,8 +6908,9 @@ if test "x$ac_cv_header_libaio_h" = xyes
 then :
   printf "%s\n" "#define HAVE_LIBAIO_H 1" >>confdefs.h
  LVM_NEEDS_LIBAIO_WARN=
-else $as_nop
-  LVM_NEEDS_LIBAIO_WARN=y
+else case e in #(
+  e) LVM_NEEDS_LIBAIO_WARN=y ;;
+esac
 fi
 
 done
@@ -7052,32 +6918,34 @@ case "$host_os" in #(
   linux*) :
            for ac_header in asm/byteorder.h linux/fs.h malloc.h
 do :
-  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | $as_tr_sh`
+  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | sed "$as_sed_sh"`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
 if eval test \"x\$"$as_ac_Header"\" = x"yes"
 then :
   cat >>confdefs.h <<_ACEOF
-#define `printf "%s\n" "HAVE_$ac_header" | $as_tr_cpp` 1
+#define `printf "%s\n" "HAVE_$ac_header" | sed "$as_sed_cpp"` 1
 _ACEOF
 
-else $as_nop
-  as_fn_error $? "bailing out" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "bailing out" "$LINENO" 5 ;;
+esac
 fi
 
 done ;; #(
   darwin*) :
            for ac_header in machine/endian.h sys/disk.h
 do :
-  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | $as_tr_sh`
+  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | sed "$as_sed_sh"`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
 if eval test \"x\$"$as_ac_Header"\" = x"yes"
 then :
   cat >>confdefs.h <<_ACEOF
-#define `printf "%s\n" "HAVE_$ac_header" | $as_tr_cpp` 1
+#define `printf "%s\n" "HAVE_$ac_header" | sed "$as_sed_cpp"` 1
 _ACEOF
 
-else $as_nop
-  as_fn_error $? "bailing out" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "bailing out" "$LINENO" 5 ;;
+esac
 fi
 
 done ;; #(
@@ -7091,8 +6959,8 @@ printf %s "checking for an ANSI C-conforming const... " >&6; }
 if test ${ac_cv_c_const+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -7156,10 +7024,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_c_const=yes
-else $as_nop
-  ac_cv_c_const=no
+else case e in #(
+  e) ac_cv_c_const=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
 printf "%s\n" "$ac_cv_c_const" >&6; }
@@ -7174,8 +7044,8 @@ printf %s "checking for inline... " >&6; }
 if test ${ac_cv_c_inline+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_cv_c_inline=no
+else case e in #(
+  e) ac_cv_c_inline=no
 for ac_kw in inline __inline__ __inline; do
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -7193,7 +7063,8 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
   test "$ac_cv_c_inline" != no && break
 done
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5
 printf "%s\n" "$ac_cv_c_inline" >&6; }
@@ -7240,13 +7111,14 @@ printf "%s\n" "#define HAVE_STRUCT_STAT_ST_BLOCKS 1" >>confdefs.h
 
 printf "%s\n" "#define HAVE_ST_BLOCKS 1" >>confdefs.h
 
-else $as_nop
-  case " $LIBOBJS " in
+else case e in #(
+  e) case " $LIBOBJS " in
   *" fileblocks.$ac_objext "* ) ;;
   *) LIBOBJS="$LIBOBJS fileblocks.$ac_objext"
  ;;
 esac
-
+ ;;
+esac
 fi
 
 
@@ -7255,8 +7127,8 @@ printf %s "checking whether struct tm is in sys/time.h or time.h... " >&6; }
 if test ${ac_cv_struct_tm+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/types.h>
 #include <time.h>
@@ -7274,10 +7146,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_struct_tm=time.h
-else $as_nop
-  ac_cv_struct_tm=sys/time.h
+else case e in #(
+  e) ac_cv_struct_tm=sys/time.h ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_struct_tm" >&5
 printf "%s\n" "$ac_cv_struct_tm" >&6; }
@@ -7291,10 +7165,11 @@ ac_fn_c_check_type "$LINENO" "off_t" "ac_cv_type_off_t" "$ac_includes_default"
 if test "x$ac_cv_type_off_t" = xyes
 then :
 
-else $as_nop
-
+else case e in #(
+  e)
 printf "%s\n" "#define off_t long int" >>confdefs.h
-
+ ;;
+esac
 fi
 
 
@@ -7303,8 +7178,8 @@ fi
 if test "x$ac_cv_type_pid_t" = xyes
 then :
 
-else $as_nop
-                                          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e)                                         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
           #if defined _WIN64 && !defined __CYGWIN__
@@ -7323,14 +7198,16 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_pid_type='int'
-else $as_nop
-  ac_pid_type='__int64'
+else case e in #(
+  e) ac_pid_type='__int64' ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
 printf "%s\n" "#define pid_t $ac_pid_type" >>confdefs.h
 
-
+     ;;
+esac
 fi
 
 
@@ -7338,20 +7215,22 @@ ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" "$ac_includes_default"
 if test "x$ac_cv_type_size_t" = xyes
 then :
 
-else $as_nop
-
+else case e in #(
+  e)
 printf "%s\n" "#define size_t unsigned int" >>confdefs.h
-
+ ;;
+esac
 fi
 
 ac_fn_c_check_type "$LINENO" "mode_t" "ac_cv_type_mode_t" "$ac_includes_default"
 if test "x$ac_cv_type_mode_t" = xyes
 then :
 
-else $as_nop
-
+else case e in #(
+  e)
 printf "%s\n" "#define mode_t int" >>confdefs.h
-
+ ;;
+esac
 fi
 
 ac_fn_c_find_intX_t "$LINENO" "8" "ac_cv_c_int8_t"
@@ -7394,42 +7273,33 @@ ac_fn_c_check_type "$LINENO" "ssize_t" "ac_cv_type_ssize_t" "$ac_includes_defaul
 if test "x$ac_cv_type_ssize_t" = xyes
 then :
 
-else $as_nop
-
+else case e in #(
+  e)
 printf "%s\n" "#define ssize_t int" >>confdefs.h
-
+ ;;
+esac
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for uid_t in sys/types.h" >&5
-printf %s "checking for uid_t in sys/types.h... " >&6; }
-if test ${ac_cv_type_uid_t+y}
+ac_fn_c_check_type "$LINENO" "uid_t" "ac_cv_type_uid_t" "$ac_includes_default"
+if test "x$ac_cv_type_uid_t" = xyes
 then :
-  printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "uid_t" >/dev/null 2>&1
-then :
-  ac_cv_type_uid_t=yes
-else $as_nop
-  ac_cv_type_uid_t=no
-fi
-rm -rf conftest*
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_uid_t" >&5
-printf "%s\n" "$ac_cv_type_uid_t" >&6; }
-if test $ac_cv_type_uid_t = no; then
 
+else case e in #(
+  e)
 printf "%s\n" "#define uid_t int" >>confdefs.h
+ ;;
+esac
+fi
 
+ac_fn_c_check_type "$LINENO" "gid_t" "ac_cv_type_gid_t" "$ac_includes_default"
+if test "x$ac_cv_type_gid_t" = xyes
+then :
 
+else case e in #(
+  e)
 printf "%s\n" "#define gid_t int" >>confdefs.h
-
+ ;;
+esac
 fi
 
 ac_fn_c_find_uintX_t "$LINENO" "8" "ac_cv_c_uint8_t"
@@ -7486,8 +7356,8 @@ printf %s "checking for __builtin_clz... " >&6; }
 if test ${ax_cv_have___builtin_clz+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -7504,12 +7374,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ax_cv_have___builtin_clz=yes
-else $as_nop
-  ax_cv_have___builtin_clz=no
+else case e in #(
+  e) ax_cv_have___builtin_clz=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-
+     ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_have___builtin_clz" >&5
 printf "%s\n" "$ax_cv_have___builtin_clz" >&6; }
@@ -7531,8 +7403,8 @@ printf %s "checking for __builtin_clzll... " >&6; }
 if test ${ax_cv_have___builtin_clzll+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -7549,12 +7421,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ax_cv_have___builtin_clzll=yes
-else $as_nop
-  ax_cv_have___builtin_clzll=no
+else case e in #(
+  e) ax_cv_have___builtin_clzll=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-
+     ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_have___builtin_clzll" >&5
 printf "%s\n" "$ax_cv_have___builtin_clzll" >&6; }
@@ -7576,8 +7450,8 @@ printf %s "checking for __builtin_ffs... " >&6; }
 if test ${ax_cv_have___builtin_ffs+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -7594,12 +7468,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ax_cv_have___builtin_ffs=yes
-else $as_nop
-  ax_cv_have___builtin_ffs=no
+else case e in #(
+  e) ax_cv_have___builtin_ffs=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-
+     ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_have___builtin_ffs" >&5
 printf "%s\n" "$ax_cv_have___builtin_ffs" >&6; }
@@ -7627,16 +7503,17 @@ printf "%s\n" "#define _REENTRANT 1" >>confdefs.h
 
   for ac_func in ftruncate gethostname getpagesize gettimeofday localtime_r memchr memset mkdir mkfifo munmap nl_langinfo pselect realpath rmdir setenv setlocale strcasecmp strchr strcspn strdup strerror strncasecmp strndup strrchr strspn strstr strtol strtoul uname
 do :
-  as_ac_var=`printf "%s\n" "ac_cv_func_$ac_func" | $as_tr_sh`
+  as_ac_var=`printf "%s\n" "ac_cv_func_$ac_func" | sed "$as_sed_sh"`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
 if eval test \"x\$"$as_ac_var"\" = x"yes"
 then :
   cat >>confdefs.h <<_ACEOF
-#define `printf "%s\n" "HAVE_$ac_func" | $as_tr_cpp` 1
+#define `printf "%s\n" "HAVE_$ac_func" | sed "$as_sed_cpp"` 1
 _ACEOF
 
-else $as_nop
-  as_fn_error $? "bailing out" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "bailing out" "$LINENO" 5 ;;
+esac
 fi
 
 done
@@ -7672,8 +7549,8 @@ printf %s "checking for working alloca.h... " >&6; }
 if test ${ac_cv_working_alloca_h+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <alloca.h>
 int
@@ -7688,11 +7565,13 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_working_alloca_h=yes
-else $as_nop
-  ac_cv_working_alloca_h=no
+else case e in #(
+  e) ac_cv_working_alloca_h=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_working_alloca_h" >&5
 printf "%s\n" "$ac_cv_working_alloca_h" >&6; }
@@ -7707,10 +7586,10 @@ printf %s "checking for alloca... " >&6; }
 if test ${ac_cv_func_alloca_works+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test $ac_cv_working_alloca_h = yes; then
-  ac_cv_func_alloca_works=yes
-else
+else case e in #(
+  e) ac_cv_func_alloca_works=$ac_cv_working_alloca_h
+if test "$ac_cv_func_alloca_works" != yes
+then :
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
@@ -7741,15 +7620,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_func_alloca_works=yes
-else $as_nop
-  ac_cv_func_alloca_works=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
+fi ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_alloca_works" >&5
 printf "%s\n" "$ac_cv_func_alloca_works" >&6; }
-fi
 
 if test $ac_cv_func_alloca_works = yes; then
 
@@ -7771,12 +7649,12 @@ printf %s "checking stack direction for C alloca... " >&6; }
 if test ${ac_cv_c_stack_direction+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_c_stack_direction=0
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
@@ -7799,13 +7677,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_c_stack_direction=1
-else $as_nop
-  ac_cv_c_stack_direction=-1
+else case e in #(
+  e) ac_cv_c_stack_direction=-1 ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_stack_direction" >&5
 printf "%s\n" "$ac_cv_c_stack_direction" >&6; }
@@ -7819,8 +7700,8 @@ printf %s "checking whether closedir returns void... " >&6; }
 if test ${ac_cv_func_closedir_void+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 #include <$ac_header_dirent>
@@ -7838,10 +7719,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_func_closedir_void=no
-else $as_nop
-  ac_cv_func_closedir_void=yes
+else case e in #(
+  e) ac_cv_func_closedir_void=yes ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_closedir_void" >&5
 printf "%s\n" "$ac_cv_func_closedir_void" >&6; }
@@ -7856,8 +7739,8 @@ printf %s "checking for working chown... " >&6; }
 if test ${ac_cv_func_chown_works+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   case "$host_os" in # ((
 			  # Guess yes on glibc systems.
@@ -7865,8 +7748,8 @@ then :
 			  # If we don't know, assume the worst.
 		  *)      ac_cv_func_chown_works=no ;;
 		esac
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 #include <fcntl.h>
@@ -7894,15 +7777,18 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_chown_works=yes
-else $as_nop
-  ac_cv_func_chown_works=no
+else case e in #(
+  e) ac_cv_func_chown_works=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
 rm -f conftest.chown
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_chown_works" >&5
 printf "%s\n" "$ac_cv_func_chown_works" >&6; }
@@ -7935,19 +7821,19 @@ printf %s "checking for working fork... " >&6; }
 if test ${ac_cv_func_fork_works+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_fork_works=cross
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
 main (void)
 {
 
-	  /* By Ruediger Kuhlmann. */
+	  /* By R. Kuhlmann. */
 	  return fork () < 0;
 
   ;
@@ -7957,13 +7843,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_fork_works=yes
-else $as_nop
-  ac_cv_func_fork_works=no
+else case e in #(
+  e) ac_cv_func_fork_works=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_fork_works" >&5
 printf "%s\n" "$ac_cv_func_fork_works" >&6; }
@@ -7991,12 +7880,12 @@ printf %s "checking for working vfork... " >&6; }
 if test ${ac_cv_func_vfork_works+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_vfork_works=cross
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 /* Thanks to Paul Eggert for this test.  */
 $ac_includes_default
@@ -8107,13 +7996,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_vfork_works=yes
-else $as_nop
-  ac_cv_func_vfork_works=no
+else case e in #(
+  e) ac_cv_func_vfork_works=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_vfork_works" >&5
 printf "%s\n" "$ac_cv_func_vfork_works" >&6; }
@@ -8145,8 +8037,8 @@ printf %s "checking whether lstat correctly handles trailing slash... " >&6; }
 if test ${ac_cv_func_lstat_dereferences_slashed_symlink+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  rm -f conftest.sym conftest.file
+else case e in #(
+  e) rm -f conftest.sym conftest.file
 echo >conftest.file
 if test "$as_ln_s" = "ln -s" && ln -s conftest.file conftest.sym; then
   if test "$cross_compiling" = yes
@@ -8157,8 +8049,8 @@ then :
 			   # If we don't know, assume the worst.
 		   *)      ac_cv_func_lstat_dereferences_slashed_symlink=no ;;
 		 esac
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
@@ -8176,20 +8068,23 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_lstat_dereferences_slashed_symlink=yes
-else $as_nop
-  ac_cv_func_lstat_dereferences_slashed_symlink=no
+else case e in #(
+  e) ac_cv_func_lstat_dereferences_slashed_symlink=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 
 else
-  # If the `ln -s' command failed, then we probably don't even
+  # If the 'ln -s' command failed, then we probably don't even
   # have an lstat function.
   ac_cv_func_lstat_dereferences_slashed_symlink=no
 fi
 rm -f conftest.sym conftest.file
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_lstat_dereferences_slashed_symlink" >&5
 printf "%s\n" "$ac_cv_func_lstat_dereferences_slashed_symlink" >&6; }
@@ -8213,12 +8108,12 @@ printf %s "checking whether lstat accepts an empty string... " >&6; }
 if test ${ac_cv_func_lstat_empty_string_bug+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_lstat_empty_string_bug=yes
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
@@ -8233,13 +8128,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_lstat_empty_string_bug=no
-else $as_nop
-  ac_cv_func_lstat_empty_string_bug=yes
+else case e in #(
+  e) ac_cv_func_lstat_empty_string_bug=yes ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_lstat_empty_string_bug" >&5
 printf "%s\n" "$ac_cv_func_lstat_empty_string_bug" >&6; }
@@ -8260,19 +8158,19 @@ printf %s "checking for GNU libc compatible malloc... " >&6; }
 if test ${ac_cv_func_malloc_0_nonnull+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   case "$host_os" in # ((
 		  # Guess yes on platforms where we know the result.
 		  *-gnu* | freebsd* | netbsd* | openbsd* | bitrig* \
-		  | hpux* | solaris* | cygwin* | mingw* | msys* )
+		  | hpux* | solaris* | cygwin* | mingw* | windows* | msys* )
 		    ac_cv_func_malloc_0_nonnull=yes ;;
 		  # If we don't know, assume the worst.
 		  *) ac_cv_func_malloc_0_nonnull=no ;;
 		esac
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 
@@ -8290,13 +8188,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_malloc_0_nonnull=yes
-else $as_nop
-  ac_cv_func_malloc_0_nonnull=no
+else case e in #(
+  e) ac_cv_func_malloc_0_nonnull=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_malloc_0_nonnull" >&5
 printf "%s\n" "$ac_cv_func_malloc_0_nonnull" >&6; }
@@ -8305,8 +8206,8 @@ then :
 
 printf "%s\n" "#define HAVE_MALLOC 1" >>confdefs.h
 
-else $as_nop
-  printf "%s\n" "#define HAVE_MALLOC 0" >>confdefs.h
+else case e in #(
+  e) printf "%s\n" "#define HAVE_MALLOC 0" >>confdefs.h
 
    case " $LIBOBJS " in
   *" malloc.$ac_objext "* ) ;;
@@ -8316,7 +8217,8 @@ esac
 
 
 printf "%s\n" "#define malloc rpl_malloc" >>confdefs.h
-
+ ;;
+esac
 fi
 
 
@@ -8325,12 +8227,12 @@ printf %s "checking for working memcmp... " >&6; }
 if test ${ac_cv_func_memcmp_working+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_memcmp_working=no
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
@@ -8368,13 +8270,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_memcmp_working=yes
-else $as_nop
-  ac_cv_func_memcmp_working=no
+else case e in #(
+  e) ac_cv_func_memcmp_working=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_memcmp_working" >&5
 printf "%s\n" "$ac_cv_func_memcmp_working" >&6; }
@@ -8394,12 +8299,12 @@ printf %s "checking for working mktime... " >&6; }
 if test ${ac_cv_func_working_mktime+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_working_mktime=no
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 /* Test program from Paul Eggert and Tony Leneis.  */
 #include <time.h>
@@ -8434,7 +8339,7 @@ static const char *tz_strings[] = {
 /* Return 0 if mktime fails to convert a date in the spring-forward gap.
    Based on a problem report from Andreas Jaeger.  */
 static int
-spring_forward_gap ()
+spring_forward_gap (void)
 {
   /* glibc (up to about 1998-10-07) failed this test. */
   struct tm tm;
@@ -8471,7 +8376,7 @@ mktime_test (time_t now)
 }
 
 static int
-irix_6_4_bug ()
+irix_6_4_bug (void)
 {
   /* Based on code from Ariel Faigon.  */
   struct tm tm;
@@ -8513,7 +8418,7 @@ bigtime_test (int j)
 }
 
 static int
-year_2050_test ()
+year_2050_test (void)
 {
   /* The correct answer for 2050-02-01 00:00:00 in Pacific time,
      ignoring leap seconds.  */
@@ -8590,13 +8495,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_working_mktime=yes
-else $as_nop
-  ac_cv_func_working_mktime=no
+else case e in #(
+  e) ac_cv_func_working_mktime=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_working_mktime" >&5
 printf "%s\n" "$ac_cv_func_working_mktime" >&6; }
@@ -8618,8 +8526,8 @@ printf %s "checking for working mmap... " >&6; }
 if test ${ac_cv_func_mmap_fixed_mapped+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   case "$host_os" in # ((
 			  # Guess yes on platforms where we know the result.
@@ -8627,8 +8535,8 @@ then :
 			  # If we don't know, assume the worst.
 		  *)      ac_cv_func_mmap_fixed_mapped=no ;;
 		esac
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 /* malloc might have been renamed as rpl_malloc. */
@@ -8649,21 +8557,21 @@ $ac_includes_default
    VM page cache was not coherent with the file system buffer cache
    like early versions of FreeBSD and possibly contemporary NetBSD.)
    For shared mappings, we should conversely verify that changes get
-   propagated back to all the places they're supposed to be.
-
-   Grep wants private fixed already mapped.
-   The main things grep needs to know about mmap are:
-   * does it exist and is it safe to write into the mmap'd area
-   * how to use it (BSD variants)  */
+   propagated back to all the places they're supposed to be.  */
 
 #include <fcntl.h>
 #include <sys/mman.h>
 
-/* This mess was copied from the GNU getpagesize.h.  */
-#ifndef HAVE_GETPAGESIZE
+#ifndef getpagesize
+/* Prefer sysconf to the legacy getpagesize function, as getpagesize has
+   been removed from POSIX and is limited to page sizes that fit in 'int'.  */
 # ifdef _SC_PAGESIZE
-#  define getpagesize() sysconf(_SC_PAGESIZE)
-# else /* no _SC_PAGESIZE */
+#  define getpagesize() sysconf (_SC_PAGESIZE)
+# elif defined _SC_PAGE_SIZE
+#  define getpagesize() sysconf (_SC_PAGE_SIZE)
+# elif HAVE_GETPAGESIZE
+int getpagesize ();
+# else
 #  ifdef HAVE_SYS_PARAM_H
 #   include <sys/param.h>
 #   ifdef EXEC_PAGESIZE
@@ -8687,16 +8595,15 @@ $ac_includes_default
 #  else /* no HAVE_SYS_PARAM_H */
 #   define getpagesize() 8192	/* punt totally */
 #  endif /* no HAVE_SYS_PARAM_H */
-# endif /* no _SC_PAGESIZE */
-
-#endif /* no HAVE_GETPAGESIZE */
+# endif
+#endif
 
 int
 main (void)
 {
   char *data, *data2, *data3;
   const char *cdata2;
-  int i, pagesize;
+  long i, pagesize;
   int fd, fd2;
 
   pagesize = getpagesize ();
@@ -8730,8 +8637,7 @@ main (void)
     if (*(data2 + i))
       return 7;
   close (fd2);
-  if (munmap (data2, pagesize))
-    return 8;
+  /* 'return 8;' not currently used.  */
 
   /* Next, try to mmap the file at a fixed address which already has
      something else allocated at it.  If we can, also make sure that
@@ -8768,13 +8674,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_mmap_fixed_mapped=yes
-else $as_nop
-  ac_cv_func_mmap_fixed_mapped=no
+else case e in #(
+  e) ac_cv_func_mmap_fixed_mapped=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_mmap_fixed_mapped" >&5
 printf "%s\n" "$ac_cv_func_mmap_fixed_mapped" >&6; }
@@ -8790,19 +8699,19 @@ printf %s "checking for GNU libc compatible realloc... " >&6; }
 if test ${ac_cv_func_realloc_0_nonnull+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   case "$host_os" in # ((
 		  # Guess yes on platforms where we know the result.
 		  *-gnu* | freebsd* | netbsd* | openbsd* | bitrig* \
-		  | hpux* | solaris* | cygwin* | mingw* | msys* )
+		  | hpux* | solaris* | cygwin* | mingw* | windows* | msys* )
 		    ac_cv_func_realloc_0_nonnull=yes ;;
 		  # If we don't know, assume the worst.
 		  *) ac_cv_func_realloc_0_nonnull=no ;;
 		esac
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 
@@ -8820,13 +8729,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_realloc_0_nonnull=yes
-else $as_nop
-  ac_cv_func_realloc_0_nonnull=no
+else case e in #(
+  e) ac_cv_func_realloc_0_nonnull=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_realloc_0_nonnull" >&5
 printf "%s\n" "$ac_cv_func_realloc_0_nonnull" >&6; }
@@ -8835,8 +8747,8 @@ then :
 
 printf "%s\n" "#define HAVE_REALLOC 1" >>confdefs.h
 
-else $as_nop
-  printf "%s\n" "#define HAVE_REALLOC 0" >>confdefs.h
+else case e in #(
+  e) printf "%s\n" "#define HAVE_REALLOC 0" >>confdefs.h
 
    case " $LIBOBJS " in
   *" realloc.$ac_objext "* ) ;;
@@ -8846,7 +8758,8 @@ esac
 
 
 printf "%s\n" "#define realloc rpl_realloc" >>confdefs.h
-
+ ;;
+esac
 fi
 
 
@@ -8855,12 +8768,12 @@ printf %s "checking whether stat accepts an empty string... " >&6; }
 if test ${ac_cv_func_stat_empty_string_bug+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_stat_empty_string_bug=yes
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
 int
@@ -8875,13 +8788,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_stat_empty_string_bug=no
-else $as_nop
-  ac_cv_func_stat_empty_string_bug=yes
+else case e in #(
+  e) ac_cv_func_stat_empty_string_bug=yes ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_stat_empty_string_bug" >&5
 printf "%s\n" "$ac_cv_func_stat_empty_string_bug" >&6; }
@@ -8902,18 +8818,15 @@ printf %s "checking for working strtod... " >&6; }
 if test ${ac_cv_func_strtod+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
+else case e in #(
+  e) if test "$cross_compiling" = yes
 then :
   ac_cv_func_strtod=no
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 $ac_includes_default
-#ifndef strtod
-double strtod ();
-#endif
 int
 main (void)
 {
@@ -8943,13 +8856,16 @@ _ACEOF
 if ac_fn_c_try_run "$LINENO"
 then :
   ac_cv_func_strtod=yes
-else $as_nop
-  ac_cv_func_strtod=no
+else case e in #(
+  e) ac_cv_func_strtod=no ;;
+esac
 fi
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
+  conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
-
+ ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_strtod" >&5
 printf "%s\n" "$ac_cv_func_strtod" >&6; }
@@ -8972,16 +8888,22 @@ printf %s "checking for pow in -lm... " >&6; }
 if test ${ac_cv_lib_m_pow+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char pow ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pow (void);
 int
 main (void)
 {
@@ -8993,21 +8915,24 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_m_pow=yes
-else $as_nop
-  ac_cv_lib_m_pow=no
+else case e in #(
+  e) ac_cv_lib_m_pow=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_pow" >&5
 printf "%s\n" "$ac_cv_lib_m_pow" >&6; }
 if test "x$ac_cv_lib_m_pow" = xyes
 then :
   POW_LIB=-lm
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot find library containing definition of pow" >&5
-printf "%s\n" "$as_me: WARNING: cannot find library containing definition of pow" >&2;}
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot find library containing definition of pow" >&5
+printf "%s\n" "$as_me: WARNING: cannot find library containing definition of pow" >&2;} ;;
+esac
 fi
 
 fi
@@ -9035,8 +8960,9 @@ printf %s "checking whether to enable dependency tracking... " >&6; }
 if test ${enable_dependency_tracking+y}
 then :
   enableval=$enable_dependency_tracking; USE_TRACKING=$enableval
-else $as_nop
-  USE_TRACKING="yes"
+else case e in #(
+  e) USE_TRACKING="yes" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $USE_TRACKING" >&5
@@ -9049,8 +8975,9 @@ printf %s "checking whether to build silently... " >&6; }
 if test ${enable_silent_rules+y}
 then :
   enableval=$enable_silent_rules; SILENT_RULES=$enableval
-else $as_nop
-  SILENT_RULES="yes"
+else case e in #(
+  e) SILENT_RULES="yes" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SILENT_RULES" >&5
@@ -9064,8 +8991,9 @@ printf %s "checking whether to use static linking... " >&6; }
 if test ${enable_static_link+y}
 then :
   enableval=$enable_static_link; STATIC_LINK=$enableval
-else $as_nop
-  STATIC_LINK="no"
+else case e in #(
+  e) STATIC_LINK="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $STATIC_LINK" >&5
@@ -9078,8 +9006,9 @@ printf %s "checking whether to use dynamic linking... " >&6; }
 if test ${enable_shared+y}
 then :
   enableval=$enable_shared; SHARED_LINK=$enableval
-else $as_nop
-  SHARED_LINK="yes"
+else case e in #(
+  e) SHARED_LINK="yes" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SHARED_LINK" >&5
@@ -9095,8 +9024,8 @@ printf %s "checking whether $CC accepts -pie flag... " >&6; }
 if test ${ac_cv_flag_HAVE_PIE+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -9110,10 +9039,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_flag_HAVE_PIE=yes
-else $as_nop
-  ac_cv_flag_HAVE_PIE=no
+else case e in #(
+  e) ac_cv_flag_HAVE_PIE=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_flag_HAVE_PIE" >&5
 printf "%s\n" "$ac_cv_flag_HAVE_PIE" >&6; }
@@ -9135,8 +9066,8 @@ printf %s "checking whether $CC accepts -Wl,-z,relro,-z,now ld flags... " >&6; }
 if test ${ac_cv_flag_HAVE_FULL_RELRO+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -9150,11 +9081,13 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_flag_HAVE_FULL_RELRO=yes
-else $as_nop
-  ac_cv_flag_HAVE_FULL_RELRO=no
+else case e in #(
+  e) ac_cv_flag_HAVE_FULL_RELRO=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
+    conftest$ac_exeext conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_flag_HAVE_FULL_RELRO" >&5
 printf "%s\n" "$ac_cv_flag_HAVE_FULL_RELRO" >&6; }
@@ -9184,8 +9117,9 @@ test "$exec_prefix" = "NONE" && exec_prefix='${prefix}'
 if test ${with_blkid+y}
 then :
   withval=$with_blkid;
-else $as_nop
-  with_blkid="yes"
+else case e in #(
+  e) with_blkid="yes" ;;
+esac
 fi
 
 
@@ -9193,8 +9127,9 @@ fi
 if test ${with_systemd+y}
 then :
   withval=$with_systemd;
-else $as_nop
-  with_systemd="yes"
+else case e in #(
+  e) with_systemd="yes" ;;
+esac
 fi
 
 
@@ -9202,8 +9137,9 @@ fi
 if test ${with_udev+y}
 then :
   withval=$with_udev;
-else $as_nop
-  with_udev="yes"
+else case e in #(
+  e) with_udev="yes" ;;
+esac
 fi
 
 
@@ -9244,8 +9180,9 @@ printf %s "checking device node uid... " >&6; }
 if test ${with_device_uid+y}
 then :
   withval=$with_device_uid; DM_DEVICE_UID=$withval
-else $as_nop
-  DM_DEVICE_UID=0
+else case e in #(
+  e) DM_DEVICE_UID=0 ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DM_DEVICE_UID" >&5
@@ -9263,8 +9200,9 @@ printf %s "checking device node gid... " >&6; }
 if test ${with_device_gid+y}
 then :
   withval=$with_device_gid; DM_DEVICE_GID=$withval
-else $as_nop
-  DM_DEVICE_GID=0
+else case e in #(
+  e) DM_DEVICE_GID=0 ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DM_DEVICE_GID" >&5
@@ -9282,8 +9220,9 @@ printf %s "checking device node mode... " >&6; }
 if test ${with_device_mode+y}
 then :
   withval=$with_device_mode; DM_DEVICE_MODE=$withval
-else $as_nop
-  DM_DEVICE_MODE=0600
+else case e in #(
+  e) DM_DEVICE_MODE=0600 ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DM_DEVICE_MODE" >&5
@@ -9299,8 +9238,9 @@ printf %s "checking when to create device nodes... " >&6; }
 if test ${with_device_nodes_on+y}
 then :
   withval=$with_device_nodes_on; ADD_NODE=$withval
-else $as_nop
-  ADD_NODE=resume
+else case e in #(
+  e) ADD_NODE=resume ;;
+esac
 fi
 
 case "$ADD_NODE" in #(
@@ -9325,8 +9265,9 @@ printf %s "checking default for use_devicesfile... " >&6; }
 if test ${with_default_use_devices_file+y}
 then :
   withval=$with_default_use_devices_file; DEFAULT_USE_DEVICES_FILE=$withval
-else $as_nop
-  DEFAULT_USE_DEVICES_FILE=0
+else case e in #(
+  e) DEFAULT_USE_DEVICES_FILE=0 ;;
+esac
 fi
 
 case "$DEFAULT_USE_DEVICES_FILE" in #(
@@ -9348,8 +9289,9 @@ printf %s "checking default name mangling... " >&6; }
 if test ${with_default_name_mangling+y}
 then :
   withval=$with_default_name_mangling; MANGLING=$withval
-else $as_nop
-  MANGLING=auto
+else case e in #(
+  e) MANGLING=auto ;;
+esac
 fi
 
 case "$MANGLING" in #(
@@ -9376,8 +9318,9 @@ printf %s "checking whether to include snapshots... " >&6; }
 if test ${with_snapshots+y}
 then :
   withval=$with_snapshots; SNAPSHOTS=$withval
-else $as_nop
-  SNAPSHOTS=internal
+else case e in #(
+  e) SNAPSHOTS=internal ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SNAPSHOTS" >&5
@@ -9403,8 +9346,9 @@ printf %s "checking whether to include mirrors... " >&6; }
 if test ${with_mirrors+y}
 then :
   withval=$with_mirrors; MIRRORS=$withval
-else $as_nop
-  MIRRORS=internal
+else case e in #(
+  e) MIRRORS=internal ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $MIRRORS" >&5
@@ -9428,8 +9372,9 @@ esac
 if test ${with_default_mirror_segtype+y}
 then :
   withval=$with_default_mirror_segtype; DEFAULT_MIRROR_SEGTYPE=$withval
-else $as_nop
-  DEFAULT_MIRROR_SEGTYPE="raid1"
+else case e in #(
+  e) DEFAULT_MIRROR_SEGTYPE="raid1" ;;
+esac
 fi
 
 
@@ -9437,8 +9382,9 @@ fi
 if test ${with_default_raid10_segtype+y}
 then :
   withval=$with_default_raid10_segtype; DEFAULT_RAID10_SEGTYPE=$withval
-else $as_nop
-  DEFAULT_RAID10_SEGTYPE="raid10"
+else case e in #(
+  e) DEFAULT_RAID10_SEGTYPE="raid10" ;;
+esac
 fi
 
 
@@ -9467,8 +9413,9 @@ then :
     as_fn_error $? "--with-default-sparse-segtype parameter invalid" "$LINENO" 5 ;;
 esac
 
-else $as_nop
-  DEFAULT_SPARSE_SEGTYPE="thin"
+else case e in #(
+  e) DEFAULT_SPARSE_SEGTYPE="thin" ;;
+esac
 fi
 
 
@@ -9480,8 +9427,9 @@ printf %s "checking whether to include thin provisioning... " >&6; }
 if test ${with_thin+y}
 then :
   withval=$with_thin; THIN=$withval
-else $as_nop
-  THIN=internal
+else case e in #(
+  e) THIN=internal ;;
+esac
 fi
 
 
@@ -9489,8 +9437,9 @@ fi
 if test ${with_thin_check+y}
 then :
   withval=$with_thin_check; THIN_CHECK_CMD=$withval
-else $as_nop
-  THIN_CHECK_CMD="autodetect"
+else case e in #(
+  e) THIN_CHECK_CMD="autodetect" ;;
+esac
 fi
 
 
@@ -9498,8 +9447,9 @@ fi
 if test ${with_thin_dump+y}
 then :
   withval=$with_thin_dump; THIN_DUMP_CMD=$withval
-else $as_nop
-  THIN_DUMP_CMD="autodetect"
+else case e in #(
+  e) THIN_DUMP_CMD="autodetect" ;;
+esac
 fi
 
 
@@ -9507,8 +9457,9 @@ fi
 if test ${with_thin_repair+y}
 then :
   withval=$with_thin_repair; THIN_REPAIR_CMD=$withval
-else $as_nop
-  THIN_REPAIR_CMD="autodetect"
+else case e in #(
+  e) THIN_REPAIR_CMD="autodetect" ;;
+esac
 fi
 
 
@@ -9516,8 +9467,9 @@ fi
 if test ${with_thin_restore+y}
 then :
   withval=$with_thin_restore; THIN_RESTORE_CMD=$withval
-else $as_nop
-  THIN_RESTORE_CMD="autodetect"
+else case e in #(
+  e) THIN_RESTORE_CMD="autodetect" ;;
+esac
 fi
 
 
@@ -9546,8 +9498,9 @@ printf "%s\n" "#define DEFAULT_SPARSE_SEGTYPE \"$DEFAULT_SPARSE_SEGTYPE\"" >>con
 if test ${enable_thin_check_needs_check+y}
 then :
   enableval=$enable_thin_check_needs_check; THIN_CHECK_NEEDS_CHECK=$enableval
-else $as_nop
-  THIN_CHECK_NEEDS_CHECK="yes"
+else case e in #(
+  e) THIN_CHECK_NEEDS_CHECK="yes" ;;
+esac
 fi
 
 
@@ -9568,8 +9521,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_THIN_CHECK_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $THIN_CHECK_CMD in
+else case e in #(
+  e) case $THIN_CHECK_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_THIN_CHECK_CMD="$THIN_CHECK_CMD" # Let the user override the test with a path.
   ;;
@@ -9594,6 +9547,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 THIN_CHECK_CMD=$ac_cv_path_THIN_CHECK_CMD
@@ -9616,8 +9570,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_THIN_CHECK_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_THIN_CHECK_CMD in
+else case e in #(
+  e) case $ac_pt_THIN_CHECK_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_THIN_CHECK_CMD="$ac_pt_THIN_CHECK_CMD" # Let the user override the test with a path.
   ;;
@@ -9642,6 +9596,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_THIN_CHECK_CMD=$ac_cv_path_ac_pt_THIN_CHECK_CMD
@@ -9718,8 +9673,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_THIN_DUMP_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $THIN_DUMP_CMD in
+else case e in #(
+  e) case $THIN_DUMP_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_THIN_DUMP_CMD="$THIN_DUMP_CMD" # Let the user override the test with a path.
   ;;
@@ -9744,6 +9699,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 THIN_DUMP_CMD=$ac_cv_path_THIN_DUMP_CMD
@@ -9766,8 +9722,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_THIN_DUMP_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_THIN_DUMP_CMD in
+else case e in #(
+  e) case $ac_pt_THIN_DUMP_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_THIN_DUMP_CMD="$ac_pt_THIN_DUMP_CMD" # Let the user override the test with a path.
   ;;
@@ -9792,6 +9748,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_THIN_DUMP_CMD=$ac_cv_path_ac_pt_THIN_DUMP_CMD
@@ -9841,8 +9798,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_THIN_REPAIR_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $THIN_REPAIR_CMD in
+else case e in #(
+  e) case $THIN_REPAIR_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_THIN_REPAIR_CMD="$THIN_REPAIR_CMD" # Let the user override the test with a path.
   ;;
@@ -9867,6 +9824,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 THIN_REPAIR_CMD=$ac_cv_path_THIN_REPAIR_CMD
@@ -9889,8 +9847,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_THIN_REPAIR_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_THIN_REPAIR_CMD in
+else case e in #(
+  e) case $ac_pt_THIN_REPAIR_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_THIN_REPAIR_CMD="$ac_pt_THIN_REPAIR_CMD" # Let the user override the test with a path.
   ;;
@@ -9915,6 +9873,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_THIN_REPAIR_CMD=$ac_cv_path_ac_pt_THIN_REPAIR_CMD
@@ -9964,8 +9923,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_THIN_RESTORE_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $THIN_RESTORE_CMD in
+else case e in #(
+  e) case $THIN_RESTORE_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_THIN_RESTORE_CMD="$THIN_RESTORE_CMD" # Let the user override the test with a path.
   ;;
@@ -9990,6 +9949,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 THIN_RESTORE_CMD=$ac_cv_path_THIN_RESTORE_CMD
@@ -10012,8 +9972,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_THIN_RESTORE_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_THIN_RESTORE_CMD in
+else case e in #(
+  e) case $ac_pt_THIN_RESTORE_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_THIN_RESTORE_CMD="$ac_pt_THIN_RESTORE_CMD" # Let the user override the test with a path.
   ;;
@@ -10038,6 +9998,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_THIN_RESTORE_CMD=$ac_cv_path_ac_pt_THIN_RESTORE_CMD
@@ -10117,8 +10078,9 @@ printf %s "checking whether to include cache... " >&6; }
 if test ${with_cache+y}
 then :
   withval=$with_cache; CACHE=$withval
-else $as_nop
-  CACHE="internal"
+else case e in #(
+  e) CACHE="internal" ;;
+esac
 fi
 
 
@@ -10126,8 +10088,9 @@ fi
 if test ${with_cache_check+y}
 then :
   withval=$with_cache_check; CACHE_CHECK_CMD=$withval
-else $as_nop
-  CACHE_CHECK_CMD="autodetect"
+else case e in #(
+  e) CACHE_CHECK_CMD="autodetect" ;;
+esac
 fi
 
 
@@ -10135,8 +10098,9 @@ fi
 if test ${with_cache_dump+y}
 then :
   withval=$with_cache_dump; CACHE_DUMP_CMD=$withval
-else $as_nop
-  CACHE_DUMP_CMD="autodetect"
+else case e in #(
+  e) CACHE_DUMP_CMD="autodetect" ;;
+esac
 fi
 
 
@@ -10144,8 +10108,9 @@ fi
 if test ${with_cache_repair+y}
 then :
   withval=$with_cache_repair; CACHE_REPAIR_CMD=$withval
-else $as_nop
-  CACHE_REPAIR_CMD="autodetect"
+else case e in #(
+  e) CACHE_REPAIR_CMD="autodetect" ;;
+esac
 fi
 
 
@@ -10153,8 +10118,9 @@ fi
 if test ${with_cache_restore+y}
 then :
   withval=$with_cache_restore; CACHE_RESTORE_CMD=$withval
-else $as_nop
-  CACHE_RESTORE_CMD="autodetect"
+else case e in #(
+  e) CACHE_RESTORE_CMD="autodetect" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CACHE" >&5
@@ -10176,8 +10142,9 @@ esac
 if test ${enable_cache_check_needs_check+y}
 then :
   enableval=$enable_cache_check_needs_check; CACHE_CHECK_NEEDS_CHECK=$enableval
-else $as_nop
-  CACHE_CHECK_NEEDS_CHECK="yes"
+else case e in #(
+  e) CACHE_CHECK_NEEDS_CHECK="yes" ;;
+esac
 fi
 
 
@@ -10198,8 +10165,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_CACHE_CHECK_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $CACHE_CHECK_CMD in
+else case e in #(
+  e) case $CACHE_CHECK_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_CACHE_CHECK_CMD="$CACHE_CHECK_CMD" # Let the user override the test with a path.
   ;;
@@ -10224,6 +10191,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 CACHE_CHECK_CMD=$ac_cv_path_CACHE_CHECK_CMD
@@ -10246,8 +10214,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_CACHE_CHECK_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_CACHE_CHECK_CMD in
+else case e in #(
+  e) case $ac_pt_CACHE_CHECK_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_CACHE_CHECK_CMD="$ac_pt_CACHE_CHECK_CMD" # Let the user override the test with a path.
   ;;
@@ -10272,6 +10240,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_CACHE_CHECK_CMD=$ac_cv_path_ac_pt_CACHE_CHECK_CMD
@@ -10366,8 +10335,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_CACHE_DUMP_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $CACHE_DUMP_CMD in
+else case e in #(
+  e) case $CACHE_DUMP_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_CACHE_DUMP_CMD="$CACHE_DUMP_CMD" # Let the user override the test with a path.
   ;;
@@ -10392,6 +10361,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 CACHE_DUMP_CMD=$ac_cv_path_CACHE_DUMP_CMD
@@ -10414,8 +10384,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_CACHE_DUMP_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_CACHE_DUMP_CMD in
+else case e in #(
+  e) case $ac_pt_CACHE_DUMP_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_CACHE_DUMP_CMD="$ac_pt_CACHE_DUMP_CMD" # Let the user override the test with a path.
   ;;
@@ -10440,6 +10410,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_CACHE_DUMP_CMD=$ac_cv_path_ac_pt_CACHE_DUMP_CMD
@@ -10489,8 +10460,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_CACHE_REPAIR_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $CACHE_REPAIR_CMD in
+else case e in #(
+  e) case $CACHE_REPAIR_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_CACHE_REPAIR_CMD="$CACHE_REPAIR_CMD" # Let the user override the test with a path.
   ;;
@@ -10515,6 +10486,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 CACHE_REPAIR_CMD=$ac_cv_path_CACHE_REPAIR_CMD
@@ -10537,8 +10509,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_CACHE_REPAIR_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_CACHE_REPAIR_CMD in
+else case e in #(
+  e) case $ac_pt_CACHE_REPAIR_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_CACHE_REPAIR_CMD="$ac_pt_CACHE_REPAIR_CMD" # Let the user override the test with a path.
   ;;
@@ -10563,6 +10535,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_CACHE_REPAIR_CMD=$ac_cv_path_ac_pt_CACHE_REPAIR_CMD
@@ -10612,8 +10585,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_CACHE_RESTORE_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $CACHE_RESTORE_CMD in
+else case e in #(
+  e) case $CACHE_RESTORE_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_CACHE_RESTORE_CMD="$CACHE_RESTORE_CMD" # Let the user override the test with a path.
   ;;
@@ -10638,6 +10611,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 CACHE_RESTORE_CMD=$ac_cv_path_CACHE_RESTORE_CMD
@@ -10660,8 +10634,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_CACHE_RESTORE_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_CACHE_RESTORE_CMD in
+else case e in #(
+  e) case $ac_pt_CACHE_RESTORE_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_CACHE_RESTORE_CMD="$ac_pt_CACHE_RESTORE_CMD" # Let the user override the test with a path.
   ;;
@@ -10686,6 +10660,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_CACHE_RESTORE_CMD=$ac_cv_path_ac_pt_CACHE_RESTORE_CMD
@@ -10765,8 +10740,9 @@ printf %s "checking whether to include vdo... " >&6; }
 if test ${with_vdo+y}
 then :
   withval=$with_vdo; VDO=$withval
-else $as_nop
-  VDO="internal"
+else case e in #(
+  e) VDO="internal" ;;
+esac
 fi
 
 
@@ -10778,8 +10754,9 @@ printf "%s\n" "$VDO" >&6; }
 if test ${with_vdo_format+y}
 then :
   withval=$with_vdo_format; VDO_FORMAT_CMD=$withval
-else $as_nop
-  VDO_FORMAT_CMD="autodetect"
+else case e in #(
+  e) VDO_FORMAT_CMD="autodetect" ;;
+esac
 fi
 
 case "$VDO" in #(
@@ -10801,8 +10778,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_VDO_FORMAT_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $VDO_FORMAT_CMD in
+else case e in #(
+  e) case $VDO_FORMAT_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_VDO_FORMAT_CMD="$VDO_FORMAT_CMD" # Let the user override the test with a path.
   ;;
@@ -10827,6 +10804,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 VDO_FORMAT_CMD=$ac_cv_path_VDO_FORMAT_CMD
@@ -10849,8 +10827,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_VDO_FORMAT_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_VDO_FORMAT_CMD in
+else case e in #(
+  e) case $ac_pt_VDO_FORMAT_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_VDO_FORMAT_CMD="$ac_pt_VDO_FORMAT_CMD" # Let the user override the test with a path.
   ;;
@@ -10875,6 +10853,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_VDO_FORMAT_CMD=$ac_cv_path_ac_pt_VDO_FORMAT_CMD
@@ -10943,8 +10922,9 @@ printf %s "checking whether to include writecache... " >&6; }
 if test ${with_writecache+y}
 then :
   withval=$with_writecache; WRITECACHE=$withval
-else $as_nop
-  WRITECACHE="internal"
+else case e in #(
+  e) WRITECACHE="internal" ;;
+esac
 fi
 
 
@@ -10971,8 +10951,9 @@ printf %s "checking whether to include integrity... " >&6; }
 if test ${with_integrity+y}
 then :
   withval=$with_integrity; INTEGRITY=$withval
-else $as_nop
-  INTEGRITY="internal"
+else case e in #(
+  e) INTEGRITY="internal" ;;
+esac
 fi
 
 
@@ -10996,8 +10977,9 @@ esac
 if test ${enable_readline+y}
 then :
   enableval=$enable_readline; READLINE=$enableval
-else $as_nop
-  READLINE="maybe"
+else case e in #(
+  e) READLINE="maybe" ;;
+esac
 fi
 
 
@@ -11006,8 +10988,9 @@ fi
 if test ${enable_editline+y}
 then :
   enableval=$enable_editline; EDITLINE=$enableval
-else $as_nop
-  EDITLINE="no"
+else case e in #(
+  e) EDITLINE="no" ;;
+esac
 fi
 
 
@@ -11018,8 +11001,9 @@ printf %s "checking whether to enable realtime support... " >&6; }
 if test ${enable_realtime+y}
 then :
   enableval=$enable_realtime; REALTIME=$enableval
-else $as_nop
-  REALTIME="yes"
+else case e in #(
+  e) REALTIME="yes" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $REALTIME" >&5
@@ -11032,8 +11016,9 @@ printf %s "checking whether to enable OCF resource agents... " >&6; }
 if test ${enable_ocf+y}
 then :
   enableval=$enable_ocf; OCF=$enableval
-else $as_nop
-  OCF="no"
+else case e in #(
+  e) OCF="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $OCF" >&5
@@ -11043,8 +11028,9 @@ printf "%s\n" "$OCF" >&6; }
 if test ${with_ocfdir+y}
 then :
   withval=$with_ocfdir; OCFDIR=$withval
-else $as_nop
-  OCFDIR='${prefix}/lib/ocf/resource.d/lvm2'
+else case e in #(
+  e) OCFDIR='${prefix}/lib/ocf/resource.d/lvm2' ;;
+esac
 fi
 
 
@@ -11064,8 +11050,9 @@ printf "%s\n" "$RUN_DIR" >&6; }
 if test ${with_default_pid_dir+y}
 then :
   withval=$with_default_pid_dir; DEFAULT_PID_DIR="$withval"
-else $as_nop
-  DEFAULT_PID_DIR=$RUN_DIR
+else case e in #(
+  e) DEFAULT_PID_DIR=$RUN_DIR ;;
+esac
 fi
 
 
@@ -11078,8 +11065,9 @@ printf "%s\n" "#define DEFAULT_PID_DIR \"$DEFAULT_PID_DIR\"" >>confdefs.h
 if test ${with_default_dm_run_dir+y}
 then :
   withval=$with_default_dm_run_dir; DEFAULT_DM_RUN_DIR="$withval"
-else $as_nop
-  DEFAULT_DM_RUN_DIR=$RUN_DIR
+else case e in #(
+  e) DEFAULT_DM_RUN_DIR=$RUN_DIR ;;
+esac
 fi
 
 
@@ -11092,8 +11080,9 @@ printf "%s\n" "#define DEFAULT_DM_RUN_DIR \"$DEFAULT_DM_RUN_DIR\"" >>confdefs.h
 if test ${with_default_run_dir+y}
 then :
   withval=$with_default_run_dir; DEFAULT_RUN_DIR="$withval"
-else $as_nop
-  DEFAULT_RUN_DIR="$RUN_DIR/lvm"
+else case e in #(
+  e) DEFAULT_RUN_DIR="$RUN_DIR/lvm" ;;
+esac
 fi
 
 
@@ -11107,8 +11096,9 @@ printf %s "checking whether to build cluster mirror log daemon... " >&6; }
 if test ${enable_cmirrord+y}
 then :
   enableval=$enable_cmirrord; BUILD_CMIRRORD=$enableval
-else $as_nop
-  BUILD_CMIRRORD="no"
+else case e in #(
+  e) BUILD_CMIRRORD="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_CMIRRORD" >&5
@@ -11123,8 +11113,9 @@ then :
 if test ${with_cmirrord_pidfile+y}
 then :
   withval=$with_cmirrord_pidfile; CMIRRORD_PIDFILE=$withval
-else $as_nop
-  CMIRRORD_PIDFILE="$DEFAULT_PID_DIR/cmirrord.pid"
+else case e in #(
+  e) CMIRRORD_PIDFILE="$DEFAULT_PID_DIR/cmirrord.pid" ;;
+esac
 fi
 
 
@@ -11150,8 +11141,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_PKG_CONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $PKG_CONFIG in
+else case e in #(
+  e) case $PKG_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
   ;;
@@ -11176,6 +11167,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 PKG_CONFIG=$ac_cv_path_PKG_CONFIG
@@ -11198,8 +11190,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_PKG_CONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_PKG_CONFIG in
+else case e in #(
+  e) case $ac_pt_PKG_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
   ;;
@@ -11224,6 +11216,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
@@ -11339,8 +11332,8 @@ See the pkg-config man page for more details." "$LINENO" 5
 elif test $pkg_failed = untried; then
         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
-        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
@@ -11350,7 +11343,7 @@ and CPG_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 else
         CPG_CFLAGS=$pkg_cv_CPG_CFLAGS
         CPG_LIBS=$pkg_cv_CPG_LIBS
@@ -11368,8 +11361,9 @@ printf %s "checking whether to enable debugging... " >&6; }
 if test ${enable_debug+y}
 then :
   enableval=$enable_debug; DEBUG=$enableval
-else $as_nop
-  DEBUG="no"
+else case e in #(
+  e) DEBUG="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DEBUG" >&5
@@ -11378,8 +11372,9 @@ printf "%s\n" "$DEBUG" >&6; }
 if test "$DEBUG" = "yes"
 then :
   COPTIMISE_FLAG=""
-else $as_nop
-  CSCOPE_CMD=""
+else case e in #(
+  e) CSCOPE_CMD="" ;;
+esac
 fi
 
 
@@ -11391,8 +11386,8 @@ printf %s "checking whether $CC accepts -Wjump-misses-init flag... " >&6; }
 if test ${ac_cv_flag_HAVE_WJUMP+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -11406,10 +11401,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_flag_HAVE_WJUMP=yes
-else $as_nop
-  ac_cv_flag_HAVE_WJUMP=no
+else case e in #(
+  e) ac_cv_flag_HAVE_WJUMP=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_flag_HAVE_WJUMP" >&5
 printf "%s\n" "$ac_cv_flag_HAVE_WJUMP" >&6; }
@@ -11431,8 +11428,8 @@ printf %s "checking whether $CC accepts -Wclobbered flag... " >&6; }
 if test ${ac_cv_flag_HAVE_WCLOBBERED+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -11446,10 +11443,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_flag_HAVE_WCLOBBERED=yes
-else $as_nop
-  ac_cv_flag_HAVE_WCLOBBERED=no
+else case e in #(
+  e) ac_cv_flag_HAVE_WCLOBBERED=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_flag_HAVE_WCLOBBERED" >&5
 printf "%s\n" "$ac_cv_flag_HAVE_WCLOBBERED" >&6; }
@@ -11471,8 +11470,8 @@ printf %s "checking whether $CC accepts -Wsync-nand flag... " >&6; }
 if test ${ac_cv_flag_HAVE_WSYNCNAND+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -11486,10 +11485,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_flag_HAVE_WSYNCNAND=yes
-else $as_nop
-  ac_cv_flag_HAVE_WSYNCNAND=no
+else case e in #(
+  e) ac_cv_flag_HAVE_WSYNCNAND=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_flag_HAVE_WSYNCNAND" >&5
 printf "%s\n" "$ac_cv_flag_HAVE_WSYNCNAND" >&6; }
@@ -11530,8 +11531,9 @@ then :
   *) :
     as_fn_error $? "--with-symvers parameter invalid" "$LINENO" 5 ;;
 esac
-else $as_nop
-  symvers="gnu"
+else case e in #(
+  e) symvers="gnu" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $symvers" >&5
@@ -11561,8 +11563,9 @@ printf %s "checking whether to gather gcov profiling data... " >&6; }
 if test ${enable_profiling+y}
 then :
   enableval=$enable_profiling; PROFILING=$enableval
-else $as_nop
-  PROFILING="no"
+else case e in #(
+  e) PROFILING="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PROFILING" >&5
@@ -11580,8 +11583,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_LCOV+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $LCOV in
+else case e in #(
+  e) case $LCOV in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_LCOV="$LCOV" # Let the user override the test with a path.
   ;;
@@ -11606,6 +11609,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 LCOV=$ac_cv_path_LCOV
@@ -11628,8 +11632,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_LCOV+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_LCOV in
+else case e in #(
+  e) case $ac_pt_LCOV in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_LCOV="$ac_pt_LCOV" # Let the user override the test with a path.
   ;;
@@ -11654,6 +11658,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_LCOV=$ac_cv_path_ac_pt_LCOV
@@ -11688,8 +11693,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_GENHTML+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $GENHTML in
+else case e in #(
+  e) case $GENHTML in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_GENHTML="$GENHTML" # Let the user override the test with a path.
   ;;
@@ -11714,6 +11719,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 GENHTML=$ac_cv_path_GENHTML
@@ -11736,8 +11742,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_GENHTML+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_GENHTML in
+else case e in #(
+  e) case $ac_pt_GENHTML in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_GENHTML="$ac_pt_GENHTML" # Let the user override the test with a path.
   ;;
@@ -11762,6 +11768,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_GENHTML=$ac_cv_path_ac_pt_GENHTML
@@ -11802,8 +11809,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_GENPNG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $GENPNG in
+else case e in #(
+  e) case $GENPNG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_GENPNG="$GENPNG" # Let the user override the test with a path.
   ;;
@@ -11828,6 +11835,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 GENPNG=$ac_cv_path_GENPNG
@@ -11850,8 +11858,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_GENPNG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_GENPNG in
+else case e in #(
+  e) case $ac_pt_GENPNG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_GENPNG="$ac_pt_GENPNG" # Let the user override the test with a path.
   ;;
@@ -11876,6 +11884,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_GENPNG=$ac_cv_path_ac_pt_GENPNG
@@ -11914,14 +11923,15 @@ then :
 printf "%s\n" "ok" >&6; }
       GENHTML="$GENHTML --frames"
 
-else $as_nop
-
+else case e in #(
+  e)
       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: not supported" >&5
 printf "%s\n" "not supported" >&6; }
       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: GD.pm perl module is not installed" >&5
 printf "%s\n" "$as_me: WARNING: GD.pm perl module is not installed" >&2;}
       GENPNG=
-
+     ;;
+esac
 fi
 
 fi
@@ -11942,8 +11952,9 @@ printf %s "checking whether to enable valgrind awareness of pools... " >&6; }
 if test ${enable_valgrind_pool+y}
 then :
   enableval=$enable_valgrind_pool; VALGRIND_POOL=$enableval
-else $as_nop
-  VALGRIND_POOL="no"
+else case e in #(
+  e) VALGRIND_POOL="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $VALGRIND_POOL" >&5
@@ -12078,8 +12089,9 @@ printf %s "checking whether to build lvmpolld... " >&6; }
 if test ${enable_lvmpolld+y}
 then :
   enableval=$enable_lvmpolld; BUILD_LVMPOLLD=$enableval
-else $as_nop
-  BUILD_LVMPOLLD="no"
+else case e in #(
+  e) BUILD_LVMPOLLD="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_LVMPOLLD" >&5
@@ -12094,8 +12106,9 @@ printf %s "checking whether to build lvmlockdsanlock... " >&6; }
 if test ${enable_lvmlockd_sanlock+y}
 then :
   enableval=$enable_lvmlockd_sanlock; BUILD_LOCKDSANLOCK=$enableval
-else $as_nop
-  BUILD_LOCKDSANLOCK="no"
+else case e in #(
+  e) BUILD_LOCKDSANLOCK="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_LOCKDSANLOCK" >&5
@@ -12176,8 +12189,8 @@ See the pkg-config man page for more details." "$LINENO" 5
 elif test $pkg_failed = untried; then
         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
-        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
@@ -12187,7 +12200,7 @@ and LIBSANLOCKCLIENT_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 else
         LIBSANLOCKCLIENT_CFLAGS=$pkg_cv_LIBSANLOCKCLIENT_CFLAGS
         LIBSANLOCKCLIENT_LIBS=$pkg_cv_LIBSANLOCKCLIENT_LIBS
@@ -12208,8 +12221,9 @@ printf %s "checking whether to build lvmlockddlm... " >&6; }
 if test ${enable_lvmlockd_dlm+y}
 then :
   enableval=$enable_lvmlockd_dlm; BUILD_LOCKDDLM=$enableval
-else $as_nop
-  BUILD_LOCKDDLM="no"
+else case e in #(
+  e) BUILD_LOCKDDLM="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_LOCKDDLM" >&5
@@ -12290,8 +12304,8 @@ See the pkg-config man page for more details." "$LINENO" 5
 elif test $pkg_failed = untried; then
         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
-        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
@@ -12301,7 +12315,7 @@ and LIBDLM_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 else
         LIBDLM_CFLAGS=$pkg_cv_LIBDLM_CFLAGS
         LIBDLM_LIBS=$pkg_cv_LIBDLM_LIBS
@@ -12331,8 +12345,9 @@ printf %s "checking whether to build lvmlockddlmcontrol... " >&6; }
 if test ${enable_lvmlockd_dlmcontrol+y}
 then :
   enableval=$enable_lvmlockd_dlmcontrol; BUILD_LOCKDDLM_CONTROL=$enableval
-else $as_nop
-  BUILD_LOCKDDLM_CONTROL="no"
+else case e in #(
+  e) BUILD_LOCKDDLM_CONTROL="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_LOCKDDLM_CONTROL" >&5
@@ -12413,8 +12428,8 @@ See the pkg-config man page for more details." "$LINENO" 5
 elif test $pkg_failed = untried; then
         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
-        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
@@ -12424,7 +12439,7 @@ and LIBDLMCONTROL_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 else
         LIBDLMCONTROL_CFLAGS=$pkg_cv_LIBDLMCONTROL_CFLAGS
         LIBDLMCONTROL_LIBS=$pkg_cv_LIBDLMCONTROL_LIBS
@@ -12445,8 +12460,9 @@ printf %s "checking whether to build lvmlockdidm... " >&6; }
 if test ${enable_lvmlockd_idm+y}
 then :
   enableval=$enable_lvmlockd_idm; BUILD_LOCKDIDM=$enableval
-else $as_nop
-  BUILD_LOCKDIDM="no"
+else case e in #(
+  e) BUILD_LOCKDIDM="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_LOCKDIDM" >&5
@@ -12534,8 +12550,8 @@ See the pkg-config man page for more details." "$LINENO" 5
 elif test $pkg_failed = untried; then
         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
-        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
@@ -12545,7 +12561,7 @@ and LIBSEAGATEILM_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 else
         LIBSEAGATEILM_CFLAGS=$pkg_cv_LIBSEAGATEILM_CFLAGS
         LIBSEAGATEILM_LIBS=$pkg_cv_LIBSEAGATEILM_LIBS
@@ -12592,8 +12608,9 @@ printf %s "checking defaults for use_lvmlockd... " >&6; }
 if test ${enable_use_lvmlockd+y}
 then :
   enableval=$enable_use_lvmlockd; use_lvmlockd=$enableval
-else $as_nop
-  use_lvmlockd="yes"
+else case e in #(
+  e) use_lvmlockd="yes" ;;
+esac
 fi
 
 	if test "$use_lvmlockd" = "yes"
@@ -12611,8 +12628,9 @@ printf "%s\n" "#define LVMLOCKD_SUPPORT 1" >>confdefs.h
 if test ${with_lvmlockd_pidfile+y}
 then :
   withval=$with_lvmlockd_pidfile; LVMLOCKD_PIDFILE=$withval
-else $as_nop
-  LVMLOCKD_PIDFILE="$DEFAULT_PID_DIR/lvmlockd.pid"
+else case e in #(
+  e) LVMLOCKD_PIDFILE="$DEFAULT_PID_DIR/lvmlockd.pid" ;;
+esac
 fi
 
 
@@ -12635,8 +12653,9 @@ printf %s "checking defaults for use_lvmpolld... " >&6; }
 if test ${enable_use_lvmpolld+y}
 then :
   enableval=$enable_use_lvmpolld; use_lvmpolld=$enableval
-else $as_nop
-  use_lvmpolld="yes"
+else case e in #(
+  e) use_lvmpolld="yes" ;;
+esac
 fi
 
 	if test "$use_lvmpolld" = "yes"
@@ -12654,8 +12673,9 @@ printf "%s\n" "#define LVMPOLLD_SUPPORT 1" >>confdefs.h
 if test ${with_lvmpolld_pidfile+y}
 then :
   withval=$with_lvmpolld_pidfile; LVMPOLLD_PIDFILE=$withval
-else $as_nop
-  LVMPOLLD_PIDFILE="$DEFAULT_PID_DIR/lvmpolld.pid"
+else case e in #(
+  e) LVMPOLLD_PIDFILE="$DEFAULT_PID_DIR/lvmpolld.pid" ;;
+esac
 fi
 
 
@@ -12699,8 +12719,9 @@ then :
 if test "x$ac_cv_header_systemd_sd_journal_h" = xyes
 then :
   SYSTEMD_JOURNAL_SUPPORT="yes"
-else $as_nop
-  SYSTEMD_JOURNAL_SUPPORT="no"
+else case e in #(
+  e) SYSTEMD_JOURNAL_SUPPORT="no" ;;
+esac
 fi
 
 fi
@@ -12733,8 +12754,9 @@ then :
 if test "x$ac_cv_header_systemd_sd_id128_h" = xyes
 then :
   APP_MACHINEID_SUPPORT="yes"
-else $as_nop
-  APP_MACHINEID_SUPPORT="no"
+else case e in #(
+  e) APP_MACHINEID_SUPPORT="no" ;;
+esac
 fi
 
 fi
@@ -12766,8 +12788,9 @@ fi
 if test ${with_systemd_run+y}
 then :
   withval=$with_systemd_run; SYSTEMD_RUN_CMD=$withval
-else $as_nop
-  SYSTEMD_RUN_CMD="autodetect"
+else case e in #(
+  e) SYSTEMD_RUN_CMD="autodetect" ;;
+esac
 fi
 
 if test "$SYSTEMD_RUN_CMD" = "autodetect"
@@ -12780,8 +12803,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_SYSTEMD_RUN_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $SYSTEMD_RUN_CMD in
+else case e in #(
+  e) case $SYSTEMD_RUN_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_SYSTEMD_RUN_CMD="$SYSTEMD_RUN_CMD" # Let the user override the test with a path.
   ;;
@@ -12806,6 +12829,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 SYSTEMD_RUN_CMD=$ac_cv_path_SYSTEMD_RUN_CMD
@@ -12828,8 +12852,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_SYSTEMD_RUN_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_SYSTEMD_RUN_CMD in
+else case e in #(
+  e) case $ac_pt_SYSTEMD_RUN_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_SYSTEMD_RUN_CMD="$ac_pt_SYSTEMD_RUN_CMD" # Let the user override the test with a path.
   ;;
@@ -12854,6 +12878,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_SYSTEMD_RUN_CMD=$ac_cv_path_ac_pt_SYSTEMD_RUN_CMD
@@ -12900,13 +12925,15 @@ DEFAULT_USE_BLKID_WIPING=0
 if test ${enable_blkid_wiping+y}
 then :
   enableval=$enable_blkid_wiping; BLKID_WIPING=$enableval
-else $as_nop
-  if test "$with_blkid" = "yes"
+else case e in #(
+  e) if test "$with_blkid" = "yes"
 then :
   BLKID_WIPING="maybe"
-else $as_nop
-  BLKID_WIPING="no"
-fi
+else case e in #(
+  e) BLKID_WIPING="no" ;;
+esac
+fi ;;
+esac
 fi
 
 
@@ -12975,8 +13002,9 @@ fi
         if test "$BLKID_WIPING" = "yes"
 then :
   BLKID_WIPING="error"
-else $as_nop
-  BLKID_WIPING="no"
+else case e in #(
+  e) BLKID_WIPING="no" ;;
+esac
 fi
 elif test $pkg_failed = untried; then
         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
@@ -12984,8 +13012,9 @@ printf "%s\n" "no" >&6; }
         if test "$BLKID_WIPING" = "yes"
 then :
   BLKID_WIPING="error"
-else $as_nop
-  BLKID_WIPING="no"
+else case e in #(
+  e) BLKID_WIPING="no" ;;
+esac
 fi
 else
         BLKID_CFLAGS=$pkg_cv_BLKID_CFLAGS
@@ -12998,8 +13027,8 @@ printf %s "checking for blkid.h defines BLKID_SUBLKS_FSINFO.... " >&6; }
 if test ${ac_cv_have_blkid_sublks_fsinfo+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <blkid/blkid.h>
 #ifndef BLKID_SUBLKS_FSINFO
@@ -13017,10 +13046,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_have_blkid_sublks_fsinfo="yes"
-else $as_nop
-  ac_cv_have_blkid_sublks_fsinfo="no"
+else case e in #(
+  e) ac_cv_have_blkid_sublks_fsinfo="no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have_blkid_sublks_fsinfo" >&5
 printf "%s\n" "$ac_cv_have_blkid_sublks_fsinfo" >&6; }
@@ -13035,8 +13066,8 @@ fi
 		if test "$with_blkid" = "no"
 then :
   BLKID_WIPING="error"
-else $as_nop
-
+else case e in #(
+  e)
 			BLKID_WIPING="yes"
 			BLKID_PC="blkid"
 			DEFAULT_USE_BLKID_WIPING=1
@@ -13045,7 +13076,8 @@ else $as_nop
 
 printf "%s\n" "#define BLKID_WIPING_SUPPORT 1" >>confdefs.h
 
-
+		       ;;
+esac
 fi
 
 fi
@@ -13072,8 +13104,9 @@ printf %s "checking whether to enable synchronization with udev processing... "
 if test ${enable_udev_sync+y}
 then :
   enableval=$enable_udev_sync; UDEV_SYNC=$enableval
-else $as_nop
-  UDEV_SYNC="no"
+else case e in #(
+  e) UDEV_SYNC="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $UDEV_SYNC" >&5
@@ -13158,8 +13191,8 @@ See the pkg-config man page for more details." "$LINENO" 5
 elif test $pkg_failed = untried; then
         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
-        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
@@ -13169,7 +13202,7 @@ and UDEV_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 else
         UDEV_CFLAGS=$pkg_cv_UDEV_CFLAGS
         UDEV_LIBS=$pkg_cv_UDEV_LIBS
@@ -13187,16 +13220,22 @@ printf %s "checking for udev_device_get_is_initialized in -ludev... " >&6; }
 if test ${ac_cv_lib_udev_udev_device_get_is_initialized+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-ludev  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char udev_device_get_is_initialized ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char udev_device_get_is_initialized (void);
 int
 main (void)
 {
@@ -13208,12 +13247,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_udev_udev_device_get_is_initialized=yes
-else $as_nop
-  ac_cv_lib_udev_udev_device_get_is_initialized=no
+else case e in #(
+  e) ac_cv_lib_udev_udev_device_get_is_initialized=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_udev_udev_device_get_is_initialized" >&5
 printf "%s\n" "$ac_cv_lib_udev_udev_device_get_is_initialized" >&6; }
@@ -13234,8 +13275,9 @@ printf %s "checking whether to enable installation of udev rules required for sy
 if test ${enable_udev_rules+y}
 then :
   enableval=$enable_udev_rules; UDEV_RULES=$enableval
-else $as_nop
-  UDEV_RULES=$UDEV_SYNC
+else case e in #(
+  e) UDEV_RULES=$UDEV_SYNC ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $UDEV_RULES" >&5
@@ -13247,8 +13289,9 @@ printf %s "checking whether to enable executable path detection in udev rules...
 if test ${enable_udev_rule_exec_detection+y}
 then :
   enableval=$enable_udev_rule_exec_detection; UDEV_RULE_EXEC_DETECTION=$enableval
-else $as_nop
-  UDEV_RULE_EXEC_DETECTION="no"
+else case e in #(
+  e) UDEV_RULE_EXEC_DETECTION="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $UDEV_RULE_EXEC_DETECTION" >&5
@@ -13283,8 +13326,9 @@ fi
 if test ${enable_units_compat+y}
 then :
   enableval=$enable_units_compat; UNITS_COMPAT=$enableval
-else $as_nop
-  UNITS_COMPAT="no"
+else case e in #(
+  e) UNITS_COMPAT="no" ;;
+esac
 fi
 
 
@@ -13339,8 +13383,9 @@ printf %s "checking whether to include Python D-Bus support... " >&6; }
 if test ${enable_dbus_service+y}
 then :
   enableval=$enable_dbus_service; BUILD_LVMDBUSD=$enableval
-else $as_nop
-  BUILD_LVMDBUSD="no"
+else case e in #(
+  e) BUILD_LVMDBUSD="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_LVMDBUSD" >&5
@@ -13359,8 +13404,9 @@ then :
   if test "$BUILD_LVMDBUSD" = "yes"
 then :
   NOTIFYDBUS_SUPPORT="yes"
-else $as_nop
-  NOTIFYDBUS_SUPPORT="no"
+else case e in #(
+  e) NOTIFYDBUS_SUPPORT="no" ;;
+esac
 fi
 fi
 
@@ -13456,8 +13502,8 @@ See the pkg-config man page for more details." "$LINENO" 5
 elif test $pkg_failed = untried; then
         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
-        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
@@ -13467,7 +13513,7 @@ and LIBSYSTEMD_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 else
         LIBSYSTEMD_CFLAGS=$pkg_cv_LIBSYSTEMD_CFLAGS
         LIBSYSTEMD_LIBS=$pkg_cv_LIBSYSTEMD_LIBS
@@ -13514,10 +13560,11 @@ sys.exit(sys.hexversion < minverhex)"
 then :
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 printf "%s\n" "yes" >&6; }
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+else case e in #(
+  e) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
-			       as_fn_error $? "Python interpreter is too old" "$LINENO" 5
+			       as_fn_error $? "Python interpreter is too old" "$LINENO" 5 ;;
+esac
 fi
       am_display_PYTHON=$PYTHON
     else
@@ -13528,8 +13575,8 @@ printf %s "checking for a Python interpreter with version >= 3... " >&6; }
 if test ${am_cv_pathless_PYTHON+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
 	for am_cv_pathless_PYTHON in  python3 python2 python 	python3.12 python3.11 python3.10 python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python3.3 python3.2 python3.1 python3.0 	python2.7 python2.6 python2.5 python2.4 python2.3 python2.2 python2.1 python2.0  none; do
 	  test "$am_cv_pathless_PYTHON" = none && break
 	  prog="import sys
@@ -13549,7 +13596,8 @@ sys.exit(sys.hexversion < minverhex)"
 then :
   break
 fi
-	done
+	done ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_pathless_PYTHON" >&5
 printf "%s\n" "$am_cv_pathless_PYTHON" >&6; }
@@ -13564,8 +13612,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_PYTHON+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $PYTHON in
+else case e in #(
+  e) case $PYTHON in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_PYTHON="$PYTHON" # Let the user override the test with a path.
   ;;
@@ -13590,6 +13638,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 PYTHON=$ac_cv_path_PYTHON
@@ -13616,8 +13665,9 @@ printf %s "checking for $am_display_PYTHON version... " >&6; }
 if test ${am_cv_python_version+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  am_cv_python_version=`$PYTHON -c "import sys; print ('%u.%u' % sys.version_info[:2])"`
+else case e in #(
+  e) am_cv_python_version=`$PYTHON -c "import sys; print ('%u.%u' % sys.version_info[:2])"` ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_version" >&5
 printf "%s\n" "$am_cv_python_version" >&6; }
@@ -13629,8 +13679,9 @@ printf %s "checking for $am_display_PYTHON platform... " >&6; }
 if test ${am_cv_python_platform+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"`
+else case e in #(
+  e) am_cv_python_platform=`$PYTHON -c "import sys; sys.stdout.write(sys.platform)"` ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_platform" >&5
 printf "%s\n" "$am_cv_python_platform" >&6; }
@@ -13650,8 +13701,9 @@ printf "%s\n" "$am_cv_python_platform" >&6; }
 if test ${with_python_sys_prefix+y}
 then :
   withval=$with_python_sys_prefix; am_use_python_sys=:
-else $as_nop
-  am_use_python_sys=false
+else case e in #(
+  e) am_use_python_sys=false ;;
+esac
 fi
 
 
@@ -13666,8 +13718,8 @@ then :
 printf %s "checking for explicit $am_display_PYTHON prefix... " >&6; }
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_prefix" >&5
 printf "%s\n" "$am_cv_python_prefix" >&6; }
-else $as_nop
-
+else case e in #(
+  e)
    if $am_use_python_sys; then
      # using python sys.prefix value, not GNU
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for python default $am_display_PYTHON prefix" >&5
@@ -13675,8 +13727,9 @@ printf %s "checking for python default $am_display_PYTHON prefix... " >&6; }
 if test ${am_cv_python_prefix+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  am_cv_python_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.prefix)"`
+else case e in #(
+  e) am_cv_python_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.prefix)"` ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_prefix" >&5
 printf "%s\n" "$am_cv_python_prefix" >&6; }
@@ -13697,7 +13750,8 @@ printf "%s\n" "$am_cv_python_prefix" >&6; }
 printf %s "checking for GNU default $am_display_PYTHON prefix... " >&6; }
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_python_prefix" >&5
 printf "%s\n" "$am_python_prefix" >&6; }
-   fi
+   fi ;;
+esac
 fi
 
   # Substituting python_prefix_subst value.
@@ -13716,8 +13770,8 @@ then :
 printf %s "checking for explicit $am_display_PYTHON exec_prefix... " >&6; }
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_exec_prefix" >&5
 printf "%s\n" "$am_cv_python_exec_prefix" >&6; }
-else $as_nop
-
+else case e in #(
+  e)
    # no explicit --with-python_exec_prefix, but if
    # --with-python_prefix was given, use its value for python_exec_prefix too.
    if test -n "$with_python_prefix"
@@ -13728,8 +13782,8 @@ then :
 printf %s "checking for python_prefix-given $am_display_PYTHON exec_prefix... " >&6; }
     { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_exec_prefix" >&5
 printf "%s\n" "$am_cv_python_exec_prefix" >&6; }
-else $as_nop
-
+else case e in #(
+  e)
     # Set am__usable_exec_prefix whether using GNU or Python values,
     # since we use that variable for pyexecdir.
     if test "x$exec_prefix" = xNONE; then
@@ -13744,8 +13798,9 @@ printf %s "checking for python default $am_display_PYTHON exec_prefix... " >&6;
 if test ${am_cv_python_exec_prefix+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  am_cv_python_exec_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.exec_prefix)"`
+else case e in #(
+  e) am_cv_python_exec_prefix=`$PYTHON -c "import sys; sys.stdout.write(sys.exec_prefix)"` ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_exec_prefix" >&5
 printf "%s\n" "$am_cv_python_exec_prefix" >&6; }
@@ -13765,8 +13820,10 @@ printf "%s\n" "$am_cv_python_exec_prefix" >&6; }
 printf %s "checking for GNU default $am_display_PYTHON exec_prefix... " >&6; }
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_python_exec_prefix" >&5
 printf "%s\n" "$am_python_exec_prefix" >&6; }
-   fi
-fi
+   fi ;;
+esac
+fi ;;
+esac
 fi
 
   # Substituting python_exec_prefix_subst.
@@ -13799,8 +13856,8 @@ printf %s "checking for $am_display_PYTHON script directory (pythondir)... " >&6
 if test ${am_cv_python_pythondir+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "x$am_cv_python_prefix" = x; then
+else case e in #(
+  e) if test "x$am_cv_python_prefix" = x; then
      am_py_prefix=$am__usable_prefix
    else
      am_py_prefix=$am_cv_python_prefix
@@ -13827,7 +13884,8 @@ sys.stdout.write(sitedir)"`
      esac
      ;;
    esac
-
+   ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_pythondir" >&5
 printf "%s\n" "$am_cv_python_pythondir" >&6; }
@@ -13842,8 +13900,8 @@ printf %s "checking for $am_display_PYTHON extension module directory (pyexecdir
 if test ${am_cv_python_pyexecdir+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  if test "x$am_cv_python_exec_prefix" = x; then
+else case e in #(
+  e) if test "x$am_cv_python_exec_prefix" = x; then
      am_py_exec_prefix=$am__usable_exec_prefix
    else
      am_py_exec_prefix=$am_cv_python_exec_prefix
@@ -13870,7 +13928,8 @@ sys.stdout.write(sitedir)"`
      esac
      ;;
    esac
-
+   ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $am_cv_python_pyexecdir" >&5
 printf "%s\n" "$am_cv_python_pyexecdir" >&6; }
@@ -13898,8 +13957,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_PYTHON3_CONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $PYTHON3_CONFIG in
+else case e in #(
+  e) case $PYTHON3_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_PYTHON3_CONFIG="$PYTHON3_CONFIG" # Let the user override the test with a path.
   ;;
@@ -13924,6 +13983,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 PYTHON3_CONFIG=$ac_cv_path_PYTHON3_CONFIG
@@ -13946,8 +14006,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_PYTHON3_CONFIG+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_PYTHON3_CONFIG in
+else case e in #(
+  e) case $ac_pt_PYTHON3_CONFIG in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_PYTHON3_CONFIG="$ac_pt_PYTHON3_CONFIG" # Let the user override the test with a path.
   ;;
@@ -13972,6 +14032,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_PYTHON3_CONFIG=$ac_cv_path_ac_pt_PYTHON3_CONFIG
@@ -14081,8 +14142,9 @@ fi
 if test ${enable_pkgconfig+y}
 then :
   enableval=$enable_pkgconfig; PKGCONFIG=$enableval
-else $as_nop
-  PKGCONFIG="no"
+else case e in #(
+  e) PKGCONFIG="no" ;;
+esac
 fi
 
 
@@ -14091,8 +14153,9 @@ fi
 if test ${enable_write_install+y}
 then :
   enableval=$enable_write_install; WRITE_INSTALL=$enableval
-else $as_nop
-  WRITE_INSTALL="no"
+else case e in #(
+  e) WRITE_INSTALL="no" ;;
+esac
 fi
 
 
@@ -14140,8 +14203,9 @@ printf %s "checking whether to use dmeventd... " >&6; }
 if test ${enable_dmeventd+y}
 then :
   enableval=$enable_dmeventd; BUILD_DMEVENTD=$enableval
-else $as_nop
-  BUILD_DMEVENTD="no"
+else case e in #(
+  e) BUILD_DMEVENTD="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_DMEVENTD" >&5
@@ -14164,8 +14228,9 @@ fi
 if test ${enable_cmdlib+y}
 then :
   enableval=$enable_cmdlib; CMDLIB=$enableval
-else $as_nop
-  CMDLIB="maybe"
+else case e in #(
+  e) CMDLIB="maybe" ;;
+esac
 fi
 
 
@@ -14174,16 +14239,18 @@ then :
   if test "$CMDLIB" = "no"
 then :
   as_fn_error $? "--enable-dmeventd requires --enable-cmdlib to be used as well" "$LINENO" 5
-else $as_nop
-  CMDLIB="yes"
+else case e in #(
+  e) CMDLIB="yes" ;;
+esac
 fi
 fi
 
 if test "$CMDLIB" != "yes"
 then :
   CMDLIB="no" LVM2CMD_LIB=
-else $as_nop
-  LVM2CMD_LIB="-llvm2cmd"
+else case e in #(
+  e) LVM2CMD_LIB="-llvm2cmd" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to compile liblvm2cmd.so" >&5
@@ -14204,8 +14271,9 @@ printf %s "checking whether to build dmfilemapd... " >&6; }
 if test ${enable_dmfilemapd+y}
 then :
   enableval=$enable_dmfilemapd; BUILD_DMFILEMAPD=$enableval
-else $as_nop
-  BUILD_DMFILEMAPD="no"
+else case e in #(
+  e) BUILD_DMFILEMAPD="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $BUILD_DMFILEMAPD" >&5
@@ -14217,8 +14285,9 @@ then :
 if test "x$ac_cv_header_linux_fiemap_h" = xyes
 then :
 
-else $as_nop
-  as_fn_error $? "--enable-dmfilemapd requires fiemap.h" "$LINENO" 5
+else case e in #(
+  e) as_fn_error $? "--enable-dmfilemapd requires fiemap.h" "$LINENO" 5 ;;
+esac
 fi
 
 
@@ -14233,16 +14302,22 @@ printf %s "checking for getline in -lc... " >&6; }
 if test ${ac_cv_lib_c_getline+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lc  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char getline ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char getline (void);
 int
 main (void)
 {
@@ -14254,12 +14329,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_c_getline=yes
-else $as_nop
-  ac_cv_lib_c_getline=no
+else case e in #(
+  e) ac_cv_lib_c_getline=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_getline" >&5
 printf "%s\n" "$ac_cv_lib_c_getline" >&6; }
@@ -14278,16 +14355,22 @@ printf %s "checking for canonicalize_file_name in -lc... " >&6; }
 if test ${ac_cv_lib_c_canonicalize_file_name+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lc  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char canonicalize_file_name ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char canonicalize_file_name (void);
 int
 main (void)
 {
@@ -14299,12 +14382,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_c_canonicalize_file_name=yes
-else $as_nop
-  ac_cv_lib_c_canonicalize_file_name=no
+else case e in #(
+  e) ac_cv_lib_c_canonicalize_file_name=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_canonicalize_file_name" >&5
 printf "%s\n" "$ac_cv_lib_c_canonicalize_file_name" >&6; }
@@ -14322,16 +14407,22 @@ printf %s "checking for dlopen in -ldl... " >&6; }
 if test ${ac_cv_lib_dl_dlopen+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-ldl  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char dlopen ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen (void);
 int
 main (void)
 {
@@ -14343,12 +14434,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_dl_dlopen=yes
-else $as_nop
-  ac_cv_lib_dl_dlopen=no
+else case e in #(
+  e) ac_cv_lib_dl_dlopen=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
 printf "%s\n" "$ac_cv_lib_dl_dlopen" >&6; }
@@ -14359,9 +14452,10 @@ printf "%s\n" "#define HAVE_LIBDL 1" >>confdefs.h
 
 	      DL_LIBS="-ldl"
 	      HAVE_LIBDL="yes"
-else $as_nop
-  DL_LIBS=
-	      HAVE_LIBDL="no"
+else case e in #(
+  e) DL_LIBS=
+	      HAVE_LIBDL="no"  ;;
+esac
 fi
 
 
@@ -14379,16 +14473,22 @@ printf %s "checking for log10 in -lm... " >&6; }
 if test ${ac_cv_lib_m_log10+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lm  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char log10 ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char log10 (void);
 int
 main (void)
 {
@@ -14400,20 +14500,23 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_m_log10=yes
-else $as_nop
-  ac_cv_lib_m_log10=no
+else case e in #(
+  e) ac_cv_lib_m_log10=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_log10" >&5
 printf "%s\n" "$ac_cv_lib_m_log10" >&6; }
 if test "x$ac_cv_lib_m_log10" = xyes
 then :
   M_LIBS="-lm"
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 
@@ -14423,16 +14526,22 @@ printf %s "checking for pthread_mutex_lock in -lpthread... " >&6; }
 if test ${ac_cv_lib_pthread_pthread_mutex_lock+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lpthread  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char pthread_mutex_lock ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_mutex_lock (void);
 int
 main (void)
 {
@@ -14444,20 +14553,23 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_pthread_pthread_mutex_lock=yes
-else $as_nop
-  ac_cv_lib_pthread_pthread_mutex_lock=no
+else case e in #(
+  e) ac_cv_lib_pthread_pthread_mutex_lock=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_mutex_lock" >&5
 printf "%s\n" "$ac_cv_lib_pthread_pthread_mutex_lock" >&6; }
 if test "x$ac_cv_lib_pthread_pthread_mutex_lock" = xyes
 then :
   PTHREAD_LIBS="-lpthread"
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 
@@ -14482,16 +14594,22 @@ printf %s "checking for sepol_check_context in -lsepol... " >&6; }
 if test ${ac_cv_lib_sepol_sepol_check_context+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lsepol  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char sepol_check_context ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char sepol_check_context (void);
 int
 main (void)
 {
@@ -14503,12 +14621,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_sepol_sepol_check_context=yes
-else $as_nop
-  ac_cv_lib_sepol_sepol_check_context=no
+else case e in #(
+  e) ac_cv_lib_sepol_sepol_check_context=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_sepol_sepol_check_context" >&5
 printf "%s\n" "$ac_cv_lib_sepol_sepol_check_context" >&6; }
@@ -14600,8 +14720,8 @@ See the pkg-config man page for more details." "$LINENO" 5
 elif test $pkg_failed = untried; then
         { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 printf "%s\n" "no" >&6; }
-        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+        { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
@@ -14611,7 +14731,7 @@ and SELINUX_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
 To get pkg-config, see <http://pkg-config.freedesktop.org/>.
-See \`config.log' for more details" "$LINENO" 5; }
+See 'config.log' for more details" "$LINENO" 5; }
 else
         SELINUX_CFLAGS=$pkg_cv_SELINUX_CFLAGS
         SELINUX_LIBS=$pkg_cv_SELINUX_LIBS
@@ -14626,16 +14746,22 @@ printf %s "checking for is_selinux_enabled in -lselinux... " >&6; }
 if test ${ac_cv_lib_selinux_is_selinux_enabled+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lselinux  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char is_selinux_enabled ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char is_selinux_enabled (void);
 int
 main (void)
 {
@@ -14647,12 +14773,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_selinux_is_selinux_enabled=yes
-else $as_nop
-  ac_cv_lib_selinux_is_selinux_enabled=no
+else case e in #(
+  e) ac_cv_lib_selinux_is_selinux_enabled=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_selinux_is_selinux_enabled" >&5
 printf "%s\n" "$ac_cv_lib_selinux_is_selinux_enabled" >&6; }
@@ -14666,8 +14794,9 @@ if test "x$ac_cv_header_selinux_selinux_h" = xyes
 then :
   printf "%s\n" "#define HAVE_SELINUX_SELINUX_H 1" >>confdefs.h
 
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 done
@@ -14685,14 +14814,15 @@ printf "%s\n" "#define HAVE_SELINUX 1" >>confdefs.h
 		SELINUX_STATIC_LIBS=${SELINUX_STATIC_LIBS:-$SELINUX_LIBS $SEPOL_LIBS}
 		SELINUX_PC="libselinux"
 		HAVE_SELINUX=yes
-else $as_nop
-
+else case e in #(
+  e)
 		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Disabling selinux" >&5
 printf "%s\n" "$as_me: WARNING: Disabling selinux" >&2;}
 		SELINUX_LIBS=
 		SELINUX_STATIC_LIBS=
 		SELINUX_PC=
-		HAVE_SELINUX=no
+		HAVE_SELINUX=no  ;;
+esac
 fi
 
 
@@ -14705,8 +14835,8 @@ printf %s "checking for BLKZEROOUT in sys/ioctl.h.... " >&6; }
 if test ${ac_cv_have_blkzeroout+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/ioctl.h>
 #include <linux/fs.h>
@@ -14723,10 +14853,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_have_blkzeroout="yes"
-else $as_nop
-  ac_cv_have_blkzeroout="no"
+else case e in #(
+  e) ac_cv_have_blkzeroout="no" ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have_blkzeroout" >&5
 printf "%s\n" "$ac_cv_have_blkzeroout" >&6; }
@@ -14736,8 +14868,9 @@ printf "%s\n" "$ac_cv_have_blkzeroout" >&6; }
 if test ${enable_blkzeroout+y}
 then :
   enableval=$enable_blkzeroout; BLKZEROOUT=$enableval
-else $as_nop
-  BLKZEROOUT="yes"
+else case e in #(
+  e) BLKZEROOUT="yes" ;;
+esac
 fi
 
 
@@ -14751,8 +14884,9 @@ then :
 
 printf "%s\n" "#define HAVE_BLKZEROOUT 1" >>confdefs.h
 
-else $as_nop
-  BLKZEROOUT="no"
+else case e in #(
+  e) BLKZEROOUT="no" ;;
+esac
 fi
 
 fi
@@ -14786,16 +14920,22 @@ printf %s "checking for clock_gettime in -lrt... " >&6; }
 if test ${ac_cv_lib_rt_clock_gettime+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lrt  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char clock_gettime ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char clock_gettime (void);
 int
 main (void)
 {
@@ -14807,12 +14947,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_rt_clock_gettime=yes
-else $as_nop
-  ac_cv_lib_rt_clock_gettime=no
+else case e in #(
+  e) ac_cv_lib_rt_clock_gettime=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
 printf "%s\n" "$ac_cv_lib_rt_clock_gettime" >&6; }
@@ -14830,11 +14972,12 @@ then :
 printf "%s\n" "#define HAVE_REALTIME 1" >>confdefs.h
 
 
-else $as_nop
-
+else case e in #(
+  e)
 		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Disabling realtime clock" >&5
 printf "%s\n" "$as_me: WARNING: Disabling realtime clock" >&2;}
-
+	 ;;
+esac
 fi
 
 fi
@@ -14844,8 +14987,8 @@ printf %s "checking for struct stat has st_ctim.... " >&6; }
 if test ${ac_cv_stat_st_ctim+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+else case e in #(
+  e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <sys/stat.h>
 long bar(void) { struct stat s; return (long)(s.st_ctim.tv_sec + s.st_ctim.tv_nsec);}
@@ -14861,10 +15004,12 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
   ac_cv_stat_st_ctim=yes
-else $as_nop
-  ac_cv_stat_st_ctim=no
+else case e in #(
+  e) ac_cv_stat_st_ctim=no ;;
+esac
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_stat_st_ctim" >&5
 printf "%s\n" "$ac_cv_stat_st_ctim" >&6; }
@@ -14983,15 +15128,21 @@ printf %s "checking for library containing tgetent... " >&6; }
 if test ${ac_cv_search_tgetent+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_func_search_save_LIBS=$LIBS
+else case e in #(
+  e) ac_func_search_save_LIBS=$LIBS
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char tgetent ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char tgetent (void);
 int
 main (void)
 {
@@ -15022,11 +15173,13 @@ done
 if test ${ac_cv_search_tgetent+y}
 then :
 
-else $as_nop
-  ac_cv_search_tgetent=no
+else case e in #(
+  e) ac_cv_search_tgetent=no ;;
+esac
 fi
 rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
+LIBS=$ac_func_search_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_tgetent" >&5
 printf "%s\n" "$ac_cv_search_tgetent" >&6; }
@@ -15035,8 +15188,8 @@ if test "$ac_res" != no
 then :
   test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
   READLINE_LIBS=$ac_cv_search_tgetent
-else $as_nop
-
+else case e in #(
+  e)
 		if test "$READLINE" = "yes"
 then :
 
@@ -15050,7 +15203,8 @@ Note: (n)curses also seems to work as a substitute for termcap.  This was
   not found either - but you could try installing that as well." "$LINENO" 5
 
 fi
-
+	 ;;
+esac
 fi
 
 		{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for readline in -lreadline" >&5
@@ -15058,16 +15212,22 @@ printf %s "checking for readline in -lreadline... " >&6; }
 if test ${ac_cv_lib_readline_readline+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lreadline  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char readline ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char readline (void);
 int
 main (void)
 {
@@ -15079,12 +15239,14 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_readline_readline=yes
-else $as_nop
-  ac_cv_lib_readline_readline=no
+else case e in #(
+  e) ac_cv_lib_readline_readline=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_readline" >&5
 printf "%s\n" "$ac_cv_lib_readline_readline" >&6; }
@@ -15101,16 +15263,22 @@ printf %s "checking for rl_line_buffer in -lreadline... " >&6; }
 if test ${ac_cv_lib_readline_rl_line_buffer+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
+else case e in #(
+  e) ac_check_lib_save_LIBS=$LIBS
 LIBS="-lreadline  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-char rl_line_buffer ();
+   builtin and then its argument prototype would still apply.
+   The 'extern "C"' is for builds by C++ compilers;
+   although this is not generally supported in C code supporting it here
+   has little cost and some practical benefit (sr 110532).  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char rl_line_buffer (void);
 int
 main (void)
 {
@@ -15122,28 +15290,31 @@ _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
   ac_cv_lib_readline_rl_line_buffer=yes
-else $as_nop
-  ac_cv_lib_readline_rl_line_buffer=no
+else case e in #(
+  e) ac_cv_lib_readline_rl_line_buffer=no ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
+LIBS=$ac_check_lib_save_LIBS ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_readline_rl_line_buffer" >&5
 printf "%s\n" "$ac_cv_lib_readline_rl_line_buffer" >&6; }
 if test "x$ac_cv_lib_readline_rl_line_buffer" = xyes
 then :
    READLINE_LIBS="-lreadline"
-else $as_nop
-
+else case e in #(
+  e)
 			  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: linking -lreadline with $READLINE_LIBS needed" >&5
 printf "%s\n" "linking -lreadline with $READLINE_LIBS needed" >&6; }
 			  READLINE_LIBS="-lreadline $READLINE_LIBS"
-
+			 ;;
+esac
 fi
 
-else $as_nop
-
+else case e in #(
+  e)
 		READLINE_LIBS=
 		if test "$READLINE" = "yes"
 then :
@@ -15156,7 +15327,8 @@ Note: if you are using precompiled packages you will also need the development
 package as well (which may be called readline-devel or something similar)." "$LINENO" 5
 
 fi
-
+	 ;;
+esac
 fi
 
 	LIBS="$READLINE_LIBS $lvm_saved_libs"
@@ -15178,8 +15350,9 @@ printf %s "checking whether to enable internationalisation... " >&6; }
 if test ${enable_nls+y}
 then :
   enableval=$enable_nls; INTL=$enableval
-else $as_nop
-  INTL="no"
+else case e in #(
+  e) INTL="no" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $INTL" >&5
@@ -15198,8 +15371,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_MSGFMT+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $MSGFMT in
+else case e in #(
+  e) case $MSGFMT in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_MSGFMT="$MSGFMT" # Let the user override the test with a path.
   ;;
@@ -15224,6 +15397,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 MSGFMT=$ac_cv_path_MSGFMT
@@ -15246,8 +15420,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_MSGFMT+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_MSGFMT in
+else case e in #(
+  e) case $ac_pt_MSGFMT in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_MSGFMT="$ac_pt_MSGFMT" # Let the user override the test with a path.
   ;;
@@ -15272,6 +15446,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_MSGFMT=$ac_cv_path_ac_pt_MSGFMT
@@ -15309,8 +15484,9 @@ fi
 if test ${with_localedir+y}
 then :
   withval=$with_localedir; localedir=$withval
-else $as_nop
-  localedir=${localedir-'${datarootdir}/locale'}
+else case e in #(
+  e) localedir=${localedir-'${datarootdir}/locale'} ;;
+esac
 fi
 
 
@@ -15329,8 +15505,9 @@ fi
 if test ${with_confdir+y}
 then :
   withval=$with_confdir; CONFDIR=$withval
-else $as_nop
-  CONFDIR='/etc'
+else case e in #(
+  e) CONFDIR='/etc' ;;
+esac
 fi
 
 
@@ -15342,8 +15519,9 @@ printf "%s\n" "#define DEFAULT_ETC_DIR \"$CONFDIR\"" >>confdefs.h
 if test ${with_staticdir+y}
 then :
   withval=$with_staticdir; STATICDIR=$withval
-else $as_nop
-  STATICDIR='${exec_prefix}/sbin'
+else case e in #(
+  e) STATICDIR='${exec_prefix}/sbin' ;;
+esac
 fi
 
 
@@ -15352,8 +15530,9 @@ fi
 if test ${with_usrlibdir+y}
 then :
   withval=$with_usrlibdir; usrlibdir=$withval
-else $as_nop
-  usrlibdir='${prefix}/lib'
+else case e in #(
+  e) usrlibdir='${prefix}/lib' ;;
+esac
 fi
 
 
@@ -15362,8 +15541,9 @@ fi
 if test ${with_usrsbindir+y}
 then :
   withval=$with_usrsbindir; usrsbindir=$withval
-else $as_nop
-  usrsbindir='${prefix}/sbin'
+else case e in #(
+  e) usrsbindir='${prefix}/sbin' ;;
+esac
 fi
 
 
@@ -15372,8 +15552,9 @@ fi
 if test ${with_libexecdir+y}
 then :
   withval=$with_libexecdir; libexecdir=$withval
-else $as_nop
-  libexecdir='${prefix}/libexec'
+else case e in #(
+  e) libexecdir='${prefix}/libexec' ;;
+esac
 fi
 
 
@@ -15383,8 +15564,9 @@ fi
 if test ${with_udev_prefix+y}
 then :
   withval=$with_udev_prefix; udev_prefix=$withval
-else $as_nop
-  udev_prefix='${exec_prefix}'
+else case e in #(
+  e) udev_prefix='${exec_prefix}' ;;
+esac
 fi
 
 
@@ -15393,8 +15575,9 @@ fi
 if test ${with_udevdir+y}
 then :
   withval=$with_udevdir; udevdir=$withval
-else $as_nop
-  udevdir='${udev_prefix}/lib/udev/rules.d'
+else case e in #(
+  e) udevdir='${udev_prefix}/lib/udev/rules.d' ;;
+esac
 fi
 
 
@@ -15433,8 +15616,9 @@ if test "x$systemdsystemunitdir" = x""
 then :
   systemdsystemunitdir='${exec_prefix}/lib/systemd/system'
 fi
-else $as_nop
-  systemdsystemunitdir="$with_systemdsystemunitdir"
+else case e in #(
+  e) systemdsystemunitdir="$with_systemdsystemunitdir" ;;
+esac
 fi
 
 
@@ -15468,8 +15652,9 @@ fi
 if test ${with_tmpfilesdir+y}
 then :
   withval=$with_tmpfilesdir; tmpfilesdir=$withval
-else $as_nop
-  tmpfilesdir='${prefix}/lib/tmpfiles.d'
+else case e in #(
+  e) tmpfilesdir='${prefix}/lib/tmpfiles.d' ;;
+esac
 fi
 
 
@@ -15481,8 +15666,9 @@ printf %s "checking for kernel modules directory... " >&6; }
 if test ${with_modulesdir+y}
 then :
   withval=$with_modulesdir; modulesdir=$withval
-else $as_nop
-  modulesdir="/lib/modules"
+else case e in #(
+  e) modulesdir="/lib/modules" ;;
+esac
 fi
 
 
@@ -15497,16 +15683,17 @@ then :
 
 	       for ac_header in readline/readline.h readline/history.h
 do :
-  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | $as_tr_sh`
+  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | sed "$as_sed_sh"`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
 if eval test \"x\$"$as_ac_Header"\" = x"yes"
 then :
   cat >>confdefs.h <<_ACEOF
-#define `printf "%s\n" "HAVE_$ac_header" | $as_tr_cpp` 1
+#define `printf "%s\n" "HAVE_$ac_header" | sed "$as_sed_cpp"` 1
 _ACEOF
 
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 done
@@ -15527,8 +15714,9 @@ if test "x$ac_cv_header_editline_readline_h" = xyes
 then :
   printf "%s\n" "#define HAVE_EDITLINE_READLINE_H 1" >>confdefs.h
 
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 done
@@ -15550,8 +15738,9 @@ if test "x$ac_cv_func_atexit" = xyes
 then :
   printf "%s\n" "#define HAVE_ATEXIT 1" >>confdefs.h
 
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 done
@@ -15574,8 +15763,9 @@ if test "x$ac_cv_func_strtoull" = xyes
 then :
   printf "%s\n" "#define HAVE_STRTOULL 1" >>confdefs.h
 
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 done
@@ -15587,8 +15777,8 @@ printf %s "checking for $CC options needed to detect all undeclared functions...
 if test ${ac_cv_c_undeclared_builtin_options+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  ac_save_CFLAGS=$CFLAGS
+else case e in #(
+  e) ac_save_CFLAGS=$CFLAGS
    ac_cv_c_undeclared_builtin_options='cannot detect'
    for ac_arg in '' -fno-builtin; do
      CFLAGS="$ac_save_CFLAGS $ac_arg"
@@ -15607,8 +15797,8 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"
 then :
 
-else $as_nop
-  # This test program should compile successfully.
+else case e in #(
+  e) # This test program should compile successfully.
         # No library function is consistently available on
         # freestanding implementations, so test against a dummy
         # declaration.  Include always-available headers on the
@@ -15636,26 +15826,29 @@ then :
   if test x"$ac_arg" = x
 then :
   ac_cv_c_undeclared_builtin_options='none needed'
-else $as_nop
-  ac_cv_c_undeclared_builtin_options=$ac_arg
+else case e in #(
+  e) ac_cv_c_undeclared_builtin_options=$ac_arg ;;
+esac
 fi
           break
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ;;
+esac
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
     done
     CFLAGS=$ac_save_CFLAGS
-
+   ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_undeclared_builtin_options" >&5
 printf "%s\n" "$ac_cv_c_undeclared_builtin_options" >&6; }
   case $ac_cv_c_undeclared_builtin_options in #(
   'cannot detect') :
-    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
+    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in '$ac_pwd':" >&5
+printf "%s\n" "$as_me: error: in '$ac_pwd':" >&2;}
 as_fn_error $? "cannot make $CC report undeclared builtins
-See \`config.log' for more details" "$LINENO" 5; } ;; #(
+See 'config.log' for more details" "$LINENO" 5; } ;; #(
   'none needed') :
     ac_c_undeclared_builtin_options='' ;; #(
   *) :
@@ -15666,8 +15859,9 @@ ac_fn_check_decl "$LINENO" "strerror_r" "ac_cv_have_decl_strerror_r" "$ac_includ
 if test "x$ac_cv_have_decl_strerror_r" = xyes
 then :
   ac_have_decl=1
-else $as_nop
-  ac_have_decl=0
+else case e in #(
+  e) ac_have_decl=0 ;;
+esac
 fi
 printf "%s\n" "#define HAVE_DECL_STRERROR_R $ac_have_decl" >>confdefs.h
 
@@ -15682,8 +15876,9 @@ if test "x$ac_cv_func_strpbrk" = xyes
 then :
   printf "%s\n" "#define HAVE_STRPBRK 1" >>confdefs.h
 
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 done
@@ -15702,8 +15897,8 @@ printf %s "checking whether strerror_r returns char *... " >&6; }
 if test ${ac_cv_func_strerror_r_char_p+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-
+else case e in #(
+  e)
     ac_cv_func_strerror_r_char_p=no
     if test $ac_cv_have_decl_strerror_r = yes; then
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -15729,7 +15924,8 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
 
     fi
-
+   ;;
+esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_strerror_r_char_p" >&5
 printf "%s\n" "$ac_cv_func_strerror_r_char_p" >&6; }
@@ -15752,8 +15948,9 @@ if test "x$ac_cv_header_arpa_inet_h" = xyes
 then :
   printf "%s\n" "#define HAVE_ARPA_INET_H 1" >>confdefs.h
 
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 done
@@ -15770,8 +15967,9 @@ if test "x$ac_cv_header_dlfcn_h" = xyes
 then :
   printf "%s\n" "#define HAVE_DLFCN_H 1" >>confdefs.h
 
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 done
@@ -15788,8 +15986,9 @@ if test "x$ac_cv_header_libintl_h" = xyes
 then :
   printf "%s\n" "#define HAVE_LIBINTL_H 1" >>confdefs.h
 
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 done
@@ -15801,16 +16000,17 @@ then :
 
 	       for ac_header in sys/ipc.h sys/sem.h
 do :
-  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | $as_tr_sh`
+  as_ac_Header=`printf "%s\n" "ac_cv_header_$ac_header" | sed "$as_sed_sh"`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
 if eval test \"x\$"$as_ac_Header"\" = x"yes"
 then :
   cat >>confdefs.h <<_ACEOF
-#define `printf "%s\n" "HAVE_$ac_header" | $as_tr_cpp` 1
+#define `printf "%s\n" "HAVE_$ac_header" | sed "$as_sed_cpp"` 1
 _ACEOF
 
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 done
@@ -15827,8 +16027,9 @@ if test "x$ac_cv_header_sys_inotify_h" = xyes
 then :
   printf "%s\n" "#define HAVE_SYS_INOTIFY_H 1" >>confdefs.h
 
-else $as_nop
-  hard_bailout
+else case e in #(
+  e) hard_bailout ;;
+esac
 fi
 
 done
@@ -15844,8 +16045,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_MODPROBE_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $MODPROBE_CMD in
+else case e in #(
+  e) case $MODPROBE_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_MODPROBE_CMD="$MODPROBE_CMD" # Let the user override the test with a path.
   ;;
@@ -15870,6 +16071,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 MODPROBE_CMD=$ac_cv_path_MODPROBE_CMD
@@ -15892,8 +16094,8 @@ printf %s "checking for $ac_word... " >&6; }
 if test ${ac_cv_path_ac_pt_MODPROBE_CMD+y}
 then :
   printf %s "(cached) " >&6
-else $as_nop
-  case $ac_pt_MODPROBE_CMD in
+else case e in #(
+  e) case $ac_pt_MODPROBE_CMD in
   [\\/]* | ?:[\\/]*)
   ac_cv_path_ac_pt_MODPROBE_CMD="$ac_pt_MODPROBE_CMD" # Let the user override the test with a path.
   ;;
@@ -15918,6 +16120,7 @@ done
 IFS=$as_save_IFS
 
   ;;
+esac ;;
 esac
 fi
 ac_pt_MODPROBE_CMD=$ac_cv_path_ac_pt_MODPROBE_CMD
@@ -15992,8 +16195,9 @@ printf "%s\n" "#define LVRESIZE_FS_HELPER_PATH \"$LVRESIZE_FS_HELPER_PATH\"" >>c
 if test ${with_dmeventd_pidfile+y}
 then :
   withval=$with_dmeventd_pidfile; DMEVENTD_PIDFILE=$withval
-else $as_nop
-  DMEVENTD_PIDFILE="$DEFAULT_PID_DIR/dmeventd.pid"
+else case e in #(
+  e) DMEVENTD_PIDFILE="$DEFAULT_PID_DIR/dmeventd.pid" ;;
+esac
 fi
 
 
@@ -16001,8 +16205,9 @@ fi
 if test ${with_dmeventd_path+y}
 then :
   withval=$with_dmeventd_path; DMEVENTD_PATH=$withval
-else $as_nop
-  DMEVENTD_PATH="$SBINDIR/dmeventd"
+else case e in #(
+  e) DMEVENTD_PATH="$SBINDIR/dmeventd" ;;
+esac
 fi
 
 
@@ -16010,8 +16215,9 @@ fi
 if test ${with_dmeventd_exit_on_path+y}
 then :
   withval=$with_dmeventd_exit_on_path; DEFAULT_DMEVENTD_EXIT_ON_PATH=$withval
-else $as_nop
-  DEFAULT_DMEVENTD_EXIT_ON_PATH="/run/nologin"
+else case e in #(
+  e) DEFAULT_DMEVENTD_EXIT_ON_PATH="/run/nologin" ;;
+esac
 fi
 
 
@@ -16036,8 +16242,9 @@ fi
 if test ${with_default_system_dir+y}
 then :
   withval=$with_default_system_dir; DEFAULT_SYS_DIR=$withval
-else $as_nop
-  DEFAULT_SYS_DIR="/etc/lvm"
+else case e in #(
+  e) DEFAULT_SYS_DIR="/etc/lvm" ;;
+esac
 fi
 
 
@@ -16049,8 +16256,9 @@ printf "%s\n" "#define DEFAULT_SYS_DIR \"$DEFAULT_SYS_DIR\"" >>confdefs.h
 if test ${with_default_profile_subdir+y}
 then :
   withval=$with_default_profile_subdir; DEFAULT_PROFILE_SUBDIR=$withval
-else $as_nop
-  DEFAULT_PROFILE_SUBDIR="profile"
+else case e in #(
+  e) DEFAULT_PROFILE_SUBDIR="profile" ;;
+esac
 fi
 
 
@@ -16062,8 +16270,9 @@ printf "%s\n" "#define DEFAULT_PROFILE_SUBDIR \"$DEFAULT_PROFILE_SUBDIR\"" >>con
 if test ${with_default_archive_subdir+y}
 then :
   withval=$with_default_archive_subdir; DEFAULT_ARCHIVE_SUBDIR=$withval
-else $as_nop
-  DEFAULT_ARCHIVE_SUBDIR="archive"
+else case e in #(
+  e) DEFAULT_ARCHIVE_SUBDIR="archive" ;;
+esac
 fi
 
 
@@ -16075,8 +16284,9 @@ printf "%s\n" "#define DEFAULT_ARCHIVE_SUBDIR \"$DEFAULT_ARCHIVE_SUBDIR\"" >>con
 if test ${with_default_backup_subdir+y}
 then :
   withval=$with_default_backup_subdir; DEFAULT_BACKUP_SUBDIR=$withval
-else $as_nop
-  DEFAULT_BACKUP_SUBDIR="backup"
+else case e in #(
+  e) DEFAULT_BACKUP_SUBDIR="backup" ;;
+esac
 fi
 
 
@@ -16088,8 +16298,9 @@ printf "%s\n" "#define DEFAULT_BACKUP_SUBDIR \"$DEFAULT_BACKUP_SUBDIR\"" >>confd
 if test ${with_default_cache_subdir+y}
 then :
   withval=$with_default_cache_subdir; DEFAULT_CACHE_SUBDIR=$withval
-else $as_nop
-  DEFAULT_CACHE_SUBDIR="cache"
+else case e in #(
+  e) DEFAULT_CACHE_SUBDIR="cache" ;;
+esac
 fi
 
 
@@ -16108,8 +16319,9 @@ printf %s "checking for default lock directory... " >&6; }
 if test ${with_default_locking_dir+y}
 then :
   withval=$with_default_locking_dir; DEFAULT_LOCK_DIR=$withval
-else $as_nop
-  DEFAULT_LOCK_DIR="$DEFAULT_SYS_LOCK_DIR/lvm"
+else case e in #(
+  e) DEFAULT_LOCK_DIR="$DEFAULT_SYS_LOCK_DIR/lvm" ;;
+esac
 fi
 
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $DEFAULT_LOCK_DIR" >&5
@@ -16126,8 +16338,9 @@ printf %s "checking for kernel interface choice... " >&6; }
 if test ${with_interface+y}
 then :
   withval=$with_interface; interface=$withval
-else $as_nop
-  interface="ioctl"
+else case e in #(
+  e) interface="ioctl" ;;
+esac
 fi
 
 if test "$interface" != "ioctl"
@@ -16327,8 +16540,8 @@ cat >confcache <<\_ACEOF
 # config.status only pays attention to the cache file if you give it
 # the --recheck option to rerun configure.
 #
-# `ac_cv_env_foo' variables (set or unset) will be overridden when
-# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# 'ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* 'ac_cv_foo' will be assigned the
 # following values.
 
 _ACEOF
@@ -16358,14 +16571,14 @@ printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;}
   (set) 2>&1 |
     case $as_nl`(ac_space=' '; set) 2>&1` in #(
     *${as_nl}ac_space=\ *)
-      # `set' does not quote correctly, so add quotes: double-quote
+      # 'set' does not quote correctly, so add quotes: double-quote
       # substitution turns \\\\ into \\, and sed turns \\ into \.
       sed -n \
 	"s/'/'\\\\''/g;
 	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
       ;; #(
     *)
-      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      # 'set' quotes correctly as required by POSIX, so do not add quotes.
       sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
       ;;
     esac |
@@ -16455,7 +16668,6 @@ cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-as_nop=:
 if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
 then :
   emulate sh
@@ -16464,12 +16676,13 @@ then :
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
-else $as_nop
-  case `(set -o) 2>/dev/null` in #(
+else case e in #(
+  e) case `(set -o) 2>/dev/null` in #(
   *posix*) :
     set -o posix ;; #(
   *) :
      ;;
+esac ;;
 esac
 fi
 
@@ -16541,7 +16754,7 @@ IFS=$as_save_IFS
 
      ;;
 esac
-# We did not find ourselves, most probably we were run as `sh COMMAND'
+# We did not find ourselves, most probably we were run as 'sh COMMAND'
 # in which case we are not to be found in the path.
 if test "x$as_myself" = x; then
   as_myself=$0
@@ -16570,7 +16783,6 @@ as_fn_error ()
 } # as_fn_error
 
 
-
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -16610,11 +16822,12 @@ then :
   {
     eval $1+=\$2
   }'
-else $as_nop
-  as_fn_append ()
+else case e in #(
+  e) as_fn_append ()
   {
     eval $1=\$$1\$2
-  }
+  } ;;
+esac
 fi # as_fn_append
 
 # as_fn_arith ARG...
@@ -16628,11 +16841,12 @@ then :
   {
     as_val=$(( $* ))
   }'
-else $as_nop
-  as_fn_arith ()
+else case e in #(
+  e) as_fn_arith ()
   {
     as_val=`expr "$@" || test $? -eq 1`
-  }
+  } ;;
+esac
 fi # as_fn_arith
 
 
@@ -16715,9 +16929,9 @@ if (echo >conf$$.file) 2>/dev/null; then
   if ln -s conf$$.file conf$$ 2>/dev/null; then
     as_ln_s='ln -s'
     # ... but there are two gotchas:
-    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
-    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -pR'.
+    # 1) On MSYS, both 'ln -s file dir' and 'ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; 'ln -s' creates a wrapper executable.
+    # In both cases, we have to default to 'cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
       as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
@@ -16798,10 +17012,12 @@ as_test_x='test -x'
 as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
-as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_cpp="y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+as_tr_cpp="eval sed '$as_sed_cpp'" # deprecated
 
 # Sed expression to map a string onto a valid variable name.
-as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+as_sed_sh="y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+as_tr_sh="eval sed '$as_sed_sh'" # deprecated
 
 
 exec 6>&1
@@ -16817,7 +17033,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # values after options handling.
 ac_log="
 This file was extended by $as_me, which was
-generated by GNU Autoconf 2.71.  Invocation command line was
+generated by GNU Autoconf 2.72.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -16848,7 +17064,7 @@ _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 ac_cs_usage="\
-\`$as_me' instantiates files and other configuration actions
+'$as_me' instantiates files and other configuration actions
 from templates according to the current configuration.  Unless the files
 and actions are specified as TAGs, all are instantiated by default.
 
@@ -16881,10 +17097,10 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
 config.status
-configured by $0, generated by GNU Autoconf 2.71,
+configured by $0, generated by GNU Autoconf 2.72,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2021 Free Software Foundation, Inc.
+Copyright (C) 2023 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -16946,8 +17162,8 @@ do
     ac_need_defaults=false;;
   --he | --h)
     # Conflict between --help and --header
-    as_fn_error $? "ambiguous option: \`$1'
-Try \`$0 --help' for more information.";;
+    as_fn_error $? "ambiguous option: '$1'
+Try '$0 --help' for more information.";;
   --help | --hel | -h )
     printf "%s\n" "$ac_cs_usage"; exit ;;
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
@@ -16955,8 +17171,8 @@ Try \`$0 --help' for more information.";;
     ac_cs_silent=: ;;
 
   # This is an error.
-  -*) as_fn_error $? "unrecognized option: \`$1'
-Try \`$0 --help' for more information." ;;
+  -*) as_fn_error $? "unrecognized option: '$1'
+Try '$0 --help' for more information." ;;
 
   *) as_fn_append ac_config_targets " $1"
      ac_need_defaults=false ;;
@@ -17066,7 +17282,7 @@ do
     "tools/Makefile") CONFIG_FILES="$CONFIG_FILES tools/Makefile" ;;
     "udev/Makefile") CONFIG_FILES="$CONFIG_FILES udev/Makefile" ;;
 
-  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  *) as_fn_error $? "invalid argument: '$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -17085,7 +17301,7 @@ fi
 # creating and moving files from /tmp can sometimes cause problems.
 # Hook for its removal unless debugging.
 # Note that there is a small window in which the directory will not be cleaned:
-# after its creation but before its name has been assigned to `$tmp'.
+# after its creation but before its name has been assigned to '$tmp'.
 $debug ||
 {
   tmp= ac_tmp=
@@ -17109,7 +17325,7 @@ ac_tmp=$tmp
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
-# This happens for instance with `./config.status config.h'.
+# This happens for instance with './config.status config.h'.
 if test -n "$CONFIG_FILES"; then
 
 
@@ -17267,13 +17483,13 @@ fi # test -n "$CONFIG_FILES"
 
 # Set up the scripts for CONFIG_HEADERS section.
 # No need to generate them if there are no CONFIG_HEADERS.
-# This happens for instance with `./config.status Makefile'.
+# This happens for instance with './config.status Makefile'.
 if test -n "$CONFIG_HEADERS"; then
 cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
 BEGIN {
 _ACEOF
 
-# Transform confdefs.h into an awk script `defines.awk', embedded as
+# Transform confdefs.h into an awk script 'defines.awk', embedded as
 # here-document in config.status, that substitutes the proper values into
 # config.h.in to produce config.h.
 
@@ -17383,7 +17599,7 @@ do
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :L* | :C*:*) as_fn_error $? "invalid tag '$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -17405,19 +17621,19 @@ do
       -) ac_f="$ac_tmp/stdin";;
       *) # Look for the file first in the build tree, then in the source tree
 	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
-	 # because $ac_f cannot contain `:'.
+	 # because $ac_f cannot contain ':'.
 	 test -f "$ac_f" ||
 	   case $ac_f in
 	   [\\/$]*) false;;
 	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
 	   esac ||
-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+	   as_fn_error 1 "cannot find input file: '$ac_f'" "$LINENO" 5;;
       esac
       case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
       as_fn_append ac_file_inputs " '$ac_f'"
     done
 
-    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # Let's still pretend it is 'configure' which instantiates (i.e., don't
     # use $as_me), people would be surprised to read:
     #    /* config.h.  Generated by config.status.  */
     configure_input='Generated from '`
@@ -17550,7 +17766,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 esac
 _ACEOF
 
-# Neutralize VPATH when `$srcdir' = `.'.
+# Neutralize VPATH when '$srcdir' = '.'.
 # Shell code in configure.ac might set extrasub.
 # FIXME: do we really want to maintain this feature?
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
@@ -17581,9 +17797,9 @@ test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
   { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
   { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
       "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&5
-printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable 'datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&2;}
 
   rm -f "$ac_tmp/stdin"
diff --git a/configure.ac b/configure.ac
index 4aea6f119..e1900f673 100644
--- a/configure.ac
+++ b/configure.ac
@@ -75,6 +75,8 @@ dnl probably no longer needed in 2008, but...
 AC_PROG_GCC_TRADITIONAL
 AC_PROG_INSTALL
 AC_PROG_LN_S
+AC_PROG_GREP
+AC_PROG_EGREP
 AC_PROG_MAKE_SET
 AC_PROG_MKDIR_P
 AC_PROG_RANLIB
diff --git a/include/configure.h.in b/include/configure.h.in
index 60bb7b362..25e1f697e 100644
--- a/include/configure.h.in
+++ b/include/configure.h.in
@@ -25,7 +25,7 @@
 /* The path to 'cache_restore', if available. */
 #undef CACHE_RESTORE_CMD
 
-/* Define to 1 if the `closedir' function returns void instead of int. */
+/* Define to 1 if the 'closedir' function returns void instead of int. */
 #undef CLOSEDIR_VOID
 
 /* Path to cmirrord pidfile. */
@@ -136,7 +136,7 @@
 /* Define to use GNU versioning in the shared library. */
 #undef GNU_SYMVER
 
-/* Define to 1 if you have the `alarm' function. */
+/* Define to 1 if you have the 'alarm' function. */
 #undef HAVE_ALARM
 
 /* Define to 1 if you have 'alloca', as a function or macro. */
@@ -154,7 +154,7 @@
 /* Define to 1 if you have the <assert.h> header file. */
 #undef HAVE_ASSERT_H
 
-/* Define to 1 if you have the `atexit' function. */
+/* Define to 1 if you have the 'atexit' function. */
 #undef HAVE_ATEXIT
 
 /* Define if blkid.h has BLKID_SUBLKS_FSINFO */
@@ -166,16 +166,16 @@
 /* Define to 1 if canonicalize_file_name is available. */
 #undef HAVE_CANONICALIZE_FILE_NAME
 
-/* Define to 1 if your system has a working `chown' function. */
+/* Define to 1 if your system has a working 'chown' function. */
 #undef HAVE_CHOWN
 
-/* Define to 1 if you have the `clock_gettime' function. */
+/* Define to 1 if you have the 'clock_gettime' function. */
 #undef HAVE_CLOCK_GETTIME
 
 /* Define to 1 if you have the <ctype.h> header file. */
 #undef HAVE_CTYPE_H
 
-/* Define to 1 if you have the declaration of `strerror_r', and to 0 if you
+/* Define to 1 if you have the declaration of 'strerror_r', and to 0 if you
    don't. */
 #undef HAVE_DECL_STRERROR_R
 
@@ -185,7 +185,7 @@
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #undef HAVE_DLFCN_H
 
-/* Define to 1 if you don't have `vprintf' but do have `_doprnt.' */
+/* Define to 1 if you don't have 'vprintf' but do have '_doprnt.' */
 #undef HAVE_DOPRNT
 
 /* Define to 1 if you have the <editline/readline.h> header file. */
@@ -197,19 +197,19 @@
 /* Define to 1 if you have the <fcntl.h> header file. */
 #undef HAVE_FCNTL_H
 
-/* Define to 1 if you have the `ffs' function. */
+/* Define to 1 if you have the 'ffs' function. */
 #undef HAVE_FFS
 
 /* Define to 1 if you have the <float.h> header file. */
 #undef HAVE_FLOAT_H
 
-/* Define to 1 if you have the `fork' function. */
+/* Define to 1 if you have the 'fork' function. */
 #undef HAVE_FORK
 
-/* Define to 1 if you have the `ftruncate' function. */
+/* Define to 1 if you have the 'ftruncate' function. */
 #undef HAVE_FTRUNCATE
 
-/* Define to 1 if you have the `gethostname' function. */
+/* Define to 1 if you have the 'gethostname' function. */
 #undef HAVE_GETHOSTNAME
 
 /* Define to 1 if getline is available. */
@@ -221,10 +221,10 @@
 /* Define to 1 if you have the <getopt.h> header file. */
 #undef HAVE_GETOPT_H
 
-/* Define to 1 if you have the `getpagesize' function. */
+/* Define to 1 if you have the 'getpagesize' function. */
 #undef HAVE_GETPAGESIZE
 
-/* Define to 1 if you have the `gettimeofday' function. */
+/* Define to 1 if you have the 'gettimeofday' function. */
 #undef HAVE_GETTIMEOFDAY
 
 /* Define to 1 if you have the <inttypes.h> header file. */
@@ -263,60 +263,60 @@
 /* Define to 1 if you have the <locale.h> header file. */
 #undef HAVE_LOCALE_H
 
-/* Define to 1 if you have the `localtime_r' function. */
+/* Define to 1 if you have the 'localtime_r' function. */
 #undef HAVE_LOCALTIME_R
 
-/* Define to 1 if `lstat' has the bug that it succeeds when given the
+/* Define to 1 if 'lstat' has the bug that it succeeds when given the
    zero-length file name argument. */
 #undef HAVE_LSTAT_EMPTY_STRING_BUG
 
 /* Define to 1 if you have the <machine/endian.h> header file. */
 #undef HAVE_MACHINE_ENDIAN_H
 
-/* Define to 1 if you have the `mallinfo2' function. */
+/* Define to 1 if you have the 'mallinfo2' function. */
 #undef HAVE_MALLINFO2
 
-/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
+/* Define to 1 if your system has a GNU libc compatible 'malloc' function, and
    to 0 otherwise. */
 #undef HAVE_MALLOC
 
 /* Define to 1 if you have the <malloc.h> header file. */
 #undef HAVE_MALLOC_H
 
-/* Define to 1 if you have the `memchr' function. */
+/* Define to 1 if you have the 'memchr' function. */
 #undef HAVE_MEMCHR
 
-/* Define to 1 if you have the `memset' function. */
+/* Define to 1 if you have the 'memset' function. */
 #undef HAVE_MEMSET
 
-/* Define to 1 if you have the `mkdir' function. */
+/* Define to 1 if you have the 'mkdir' function. */
 #undef HAVE_MKDIR
 
-/* Define to 1 if you have the `mkfifo' function. */
+/* Define to 1 if you have the 'mkfifo' function. */
 #undef HAVE_MKFIFO
 
-/* Define to 1 if you have a working `mmap' system call. */
+/* Define to 1 if you have a working 'mmap' system call. */
 #undef HAVE_MMAP
 
-/* Define to 1 if you have the `munmap' function. */
+/* Define to 1 if you have the 'munmap' function. */
 #undef HAVE_MUNMAP
 
-/* Define to 1 if you have the <ndir.h> header file, and it defines `DIR'. */
+/* Define to 1 if you have the <ndir.h> header file, and it defines 'DIR'. */
 #undef HAVE_NDIR_H
 
-/* Define to 1 if you have the `nl_langinfo' function. */
+/* Define to 1 if you have the 'nl_langinfo' function. */
 #undef HAVE_NL_LANGINFO
 
 /* Define to 1 if you have the <paths.h> header file. */
 #undef HAVE_PATHS_H
 
-/* Define to 1 if you have the `prlimit' function. */
+/* Define to 1 if you have the 'prlimit' function. */
 #undef HAVE_PRLIMIT
 
-/* Define to 1 if you have the `pselect' function. */
+/* Define to 1 if you have the 'pselect' function. */
 #undef HAVE_PSELECT
 
-/* Define to 1 if the system has the type `ptrdiff_t'. */
+/* Define to 1 if the system has the type 'ptrdiff_t'. */
 #undef HAVE_PTRDIFF_T
 
 /* Define to 1 if you have the <readline/history.h> header file. */
@@ -325,20 +325,20 @@
 /* Define to 1 if you have the <readline/readline.h> header file. */
 #undef HAVE_READLINE_READLINE_H
 
-/* Define to 1 if your system has a GNU libc compatible `realloc' function,
+/* Define to 1 if your system has a GNU libc compatible 'realloc' function,
    and to 0 otherwise. */
 #undef HAVE_REALLOC
 
-/* Define to 1 if you have the `realpath' function. */
+/* Define to 1 if you have the 'realpath' function. */
 #undef HAVE_REALPATH
 
 /* Define to 1 to include support for realtime clock. */
 #undef HAVE_REALTIME
 
-/* Define to 1 if you have the `rl_completion_matches' function. */
+/* Define to 1 if you have the 'rl_completion_matches' function. */
 #undef HAVE_RL_COMPLETION_MATCHES
 
-/* Define to 1 if you have the `rmdir' function. */
+/* Define to 1 if you have the 'rmdir' function. */
 #undef HAVE_RMDIR
 
 /* Define to 1 to include support for selinux. */
@@ -353,16 +353,16 @@
 /* Define to 1 if sepol_check_context is available. */
 #undef HAVE_SEPOL
 
-/* Define to 1 if you have the `setenv' function. */
+/* Define to 1 if you have the 'setenv' function. */
 #undef HAVE_SETENV
 
-/* Define to 1 if you have the `setlocale' function. */
+/* Define to 1 if you have the 'setlocale' function. */
 #undef HAVE_SETLOCALE
 
 /* Define to 1 if you have the <signal.h> header file. */
 #undef HAVE_SIGNAL_H
 
-/* Define to 1 if `stat' has the bug that it succeeds when given the
+/* Define to 1 if 'stat' has the bug that it succeeds when given the
    zero-length file name argument. */
 #undef HAVE_STAT_EMPTY_STRING_BUG
 
@@ -387,22 +387,22 @@
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
-/* Define to 1 if you have the `strcasecmp' function. */
+/* Define to 1 if you have the 'strcasecmp' function. */
 #undef HAVE_STRCASECMP
 
-/* Define to 1 if you have the `strchr' function. */
+/* Define to 1 if you have the 'strchr' function. */
 #undef HAVE_STRCHR
 
-/* Define to 1 if you have the `strcspn' function. */
+/* Define to 1 if you have the 'strcspn' function. */
 #undef HAVE_STRCSPN
 
-/* Define to 1 if you have the `strdup' function. */
+/* Define to 1 if you have the 'strdup' function. */
 #undef HAVE_STRDUP
 
-/* Define to 1 if you have the `strerror' function. */
+/* Define to 1 if you have the 'strerror' function. */
 #undef HAVE_STRERROR
 
-/* Define if you have `strerror_r'. */
+/* Define if you have 'strerror_r'. */
 #undef HAVE_STRERROR_R
 
 /* Define to 1 if you have the <strings.h> header file. */
@@ -411,47 +411,47 @@
 /* Define to 1 if you have the <string.h> header file. */
 #undef HAVE_STRING_H
 
-/* Define to 1 if you have the `strncasecmp' function. */
+/* Define to 1 if you have the 'strncasecmp' function. */
 #undef HAVE_STRNCASECMP
 
-/* Define to 1 if you have the `strndup' function. */
+/* Define to 1 if you have the 'strndup' function. */
 #undef HAVE_STRNDUP
 
-/* Define to 1 if you have the `strpbrk' function. */
+/* Define to 1 if you have the 'strpbrk' function. */
 #undef HAVE_STRPBRK
 
-/* Define to 1 if you have the `strrchr' function. */
+/* Define to 1 if you have the 'strrchr' function. */
 #undef HAVE_STRRCHR
 
-/* Define to 1 if you have the `strspn' function. */
+/* Define to 1 if you have the 'strspn' function. */
 #undef HAVE_STRSPN
 
-/* Define to 1 if you have the `strstr' function. */
+/* Define to 1 if you have the 'strstr' function. */
 #undef HAVE_STRSTR
 
-/* Define to 1 if you have the `strtol' function. */
+/* Define to 1 if you have the 'strtol' function. */
 #undef HAVE_STRTOL
 
-/* Define to 1 if you have the `strtoul' function. */
+/* Define to 1 if you have the 'strtoul' function. */
 #undef HAVE_STRTOUL
 
-/* Define to 1 if you have the `strtoull' function. */
+/* Define to 1 if you have the 'strtoull' function. */
 #undef HAVE_STRTOULL
 
-/* Define to 1 if `st_blocks' is a member of `struct stat'. */
+/* Define to 1 if 'st_blocks' is a member of 'struct stat'. */
 #undef HAVE_STRUCT_STAT_ST_BLOCKS
 
-/* Define to 1 if `st_rdev' is a member of `struct stat'. */
+/* Define to 1 if 'st_rdev' is a member of 'struct stat'. */
 #undef HAVE_STRUCT_STAT_ST_RDEV
 
-/* Define to 1 if your `struct stat' has `st_blocks'. Deprecated, use
-   `HAVE_STRUCT_STAT_ST_BLOCKS' instead. */
+/* Define to 1 if your 'struct stat' has 'st_blocks'. Deprecated, use
+   'HAVE_STRUCT_STAT_ST_BLOCKS' instead. */
 #undef HAVE_ST_BLOCKS
 
 /* Define to 1 if you have the <syslog.h> header file. */
 #undef HAVE_SYSLOG_H
 
-/* Define to 1 if you have the <sys/dir.h> header file, and it defines `DIR'.
+/* Define to 1 if you have the <sys/dir.h> header file, and it defines 'DIR'.
    */
 #undef HAVE_SYS_DIR_H
 
@@ -473,7 +473,7 @@
 /* Define to 1 if you have the <sys/mman.h> header file. */
 #undef HAVE_SYS_MMAN_H
 
-/* Define to 1 if you have the <sys/ndir.h> header file, and it defines `DIR'.
+/* Define to 1 if you have the <sys/ndir.h> header file, and it defines 'DIR'.
    */
 #undef HAVE_SYS_NDIR_H
 
@@ -516,7 +516,7 @@
 /* Define to 1 if you have the <time.h> header file. */
 #undef HAVE_TIME_H
 
-/* Define to 1 if you have the `uname' function. */
+/* Define to 1 if you have the 'uname' function. */
 #undef HAVE_UNAME
 
 /* Define to 1 if you have the <unistd.h> header file. */
@@ -525,25 +525,25 @@
 /* valgrind.h found */
 #undef HAVE_VALGRIND
 
-/* Define to 1 if you have the `versionsort' function. */
+/* Define to 1 if you have the 'versionsort' function. */
 #undef HAVE_VERSIONSORT
 
-/* Define to 1 if you have the `vfork' function. */
+/* Define to 1 if you have the 'vfork' function. */
 #undef HAVE_VFORK
 
 /* Define to 1 if you have the <vfork.h> header file. */
 #undef HAVE_VFORK_H
 
-/* Define to 1 if you have the `vprintf' function. */
+/* Define to 1 if you have the 'vprintf' function. */
 #undef HAVE_VPRINTF
 
-/* Define to 1 if `fork' works. */
+/* Define to 1 if 'fork' works. */
 #undef HAVE_WORKING_FORK
 
-/* Define to 1 if `vfork' works. */
+/* Define to 1 if 'vfork' works. */
 #undef HAVE_WORKING_VFORK
 
-/* Define to 1 if the system has the type `_Bool'. */
+/* Define to 1 if the system has the type '_Bool'. */
 #undef HAVE__BOOL
 
 /* Define to 1 if the system has the `__builtin_clz' built-in function */
@@ -576,7 +576,7 @@
 /* Define to 1 to include code that uses lvmlockd sanlock option. */
 #undef LOCKDSANLOCK_SUPPORT
 
-/* Define to 1 if `lstat' dereferences a symlink specified with a trailing
+/* Define to 1 if 'lstat' dereferences a symlink specified with a trailing
    slash. */
 #undef LSTAT_FOLLOWS_SLASHED_SYMLINK
 
@@ -607,11 +607,11 @@
 /* Path to lvresize_fs_helper script. */
 #undef LVRESIZE_FS_HELPER_PATH
 
-/* Define to 1 if `major', `minor', and `makedev' are declared in <mkdev.h>.
+/* Define to 1 if 'major', 'minor', and 'makedev' are declared in <mkdev.h>.
    */
 #undef MAJOR_IN_MKDEV
 
-/* Define to 1 if `major', `minor', and `makedev' are declared in
+/* Define to 1 if 'major', 'minor', and 'makedev' are declared in
    <sysmacros.h>. */
 #undef MAJOR_IN_SYSMACROS
 
@@ -665,7 +665,7 @@
 	STACK_DIRECTION = 0 => direction of growth unknown */
 #undef STACK_DIRECTION
 
-/* Define to 1 if all of the C90 standard headers exist (not just the ones
+/* Define to 1 if all of the C89 standard headers exist (not just the ones
    required in a freestanding environment). This macro is provided for
    backward compatibility; new code need not use it. */
 #undef STDC_HEADERS
@@ -698,7 +698,7 @@
 /* The path to 'thin_restore', if available. */
 #undef THIN_RESTORE_CMD
 
-/* Define to 1 if your <sys/time.h> declares `struct tm'. */
+/* Define to 1 if your <sys/time.h> declares 'struct tm'. */
 #undef TM_IN_SYS_TIME
 
 /* Define to 1 to enable synchronization with udev processing. */
@@ -737,13 +737,13 @@
    #define below would cause a syntax error. */
 #undef _UINT8_T
 
-/* Define to empty if `const' does not conform to ANSI C. */
+/* Define to empty if 'const' does not conform to ANSI C. */
 #undef const
 
-/* Define to `int' if <sys/types.h> doesn't define. */
+/* Define as 'int' if <sys/types.h> doesn't define. */
 #undef gid_t
 
-/* Define to `__inline__' or `__inline' if that's what the C compiler
+/* Define to '__inline__' or '__inline' if that's what the C compiler
    calls it, or to nothing if 'inline' is not supported under any name.  */
 #ifndef __cplusplus
 #undef inline
@@ -768,10 +768,10 @@
 /* Define to rpl_malloc if the replacement function should be used. */
 #undef malloc
 
-/* Define to `int' if <sys/types.h> does not define. */
+/* Define to 'int' if <sys/types.h> does not define. */
 #undef mode_t
 
-/* Define to `long int' if <sys/types.h> does not define. */
+/* Define to 'long int' if <sys/types.h> does not define. */
 #undef off_t
 
 /* Define as a signed integer type capable of holding a process identifier. */
@@ -780,13 +780,13 @@
 /* Define to rpl_realloc if the replacement function should be used. */
 #undef realloc
 
-/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* Define as 'unsigned int' if <stddef.h> doesn't define. */
 #undef size_t
 
-/* Define to `int' if <sys/types.h> does not define. */
+/* Define as 'int' if <sys/types.h> doesn't define. */
 #undef ssize_t
 
-/* Define to `int' if <sys/types.h> doesn't define. */
+/* Define as 'int' if <sys/types.h> doesn't define. */
 #undef uid_t
 
 /* Define to the type of an unsigned integer type of width exactly 16 bits if
@@ -805,5 +805,5 @@
    such a type exists and the standard includes do not define it. */
 #undef uint8_t
 
-/* Define as `fork' if `vfork' does not work. */
+/* Define as 'fork' if 'vfork' does not work. */
 #undef vfork