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samba-mirror/source4/aclocal.m4
Jelmer Vernooij 5296bd1b51 r7274: Move m4 files to seperate dir
(This used to be commit 0dda66f0e8)
2007-10-10 13:17:35 -05:00

294 lines
8.4 KiB
Plaintext

dnl test whether dirent has a d_off member
AC_DEFUN(AC_DIRENT_D_OFF,
[AC_CACHE_CHECK([for d_off in dirent], ac_cv_dirent_d_off,
[AC_TRY_COMPILE([
#include <unistd.h>
#include <sys/types.h>
#include <dirent.h>], [struct dirent d; d.d_off;],
ac_cv_dirent_d_off=yes, ac_cv_dirent_d_off=no)])
if test $ac_cv_dirent_d_off = yes; then
AC_DEFINE(HAVE_DIRENT_D_OFF,1,[Whether dirent has a d_off member])
fi
])
dnl AC_PROG_CC_FLAG(flag)
AC_DEFUN(AC_PROG_CC_FLAG,
[AC_CACHE_CHECK(whether ${CC-cc} accepts -$1, ac_cv_prog_cc_$1,
[echo 'void f(){}' > conftest.c
if test -z "`${CC-cc} -$1 -c conftest.c 2>&1`"; then
ac_cv_prog_cc_$1=yes
else
ac_cv_prog_cc_$1=no
fi
rm -f conftest*
])])
dnl see if a declaration exists for a function or variable
dnl defines HAVE_function_DECL if it exists
dnl AC_HAVE_DECL(var, includes)
AC_DEFUN(AC_HAVE_DECL,
[
AC_CACHE_CHECK([for $1 declaration],ac_cv_have_$1_decl,[
AC_TRY_COMPILE([$2],[int i = (int)$1],
ac_cv_have_$1_decl=yes,ac_cv_have_$1_decl=no)])
if test x"$ac_cv_have_$1_decl" = x"yes"; then
AC_DEFINE([HAVE_]translit([$1], [a-z], [A-Z])[_DECL],1,[Whether $1() is available])
fi
])
# AC_CHECK_LIB_EXT(LIBRARY, [EXT_LIBS], [FUNCTION],
# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
# [ADD-ACTION-IF-FOUND],[OTHER-LIBRARIES])
# ------------------------------------------------------
#
# Use a cache variable name containing both the library and function name,
# because the test really is for library $1 defining function $3, not
# just for library $1. Separate tests with the same $1 and different $3s
# may have different results.
#
# Note that using directly AS_VAR_PUSHDEF([ac_Lib], [ac_cv_lib_$1_$3])
# is asking for trouble, since AC_CHECK_LIB($lib, fun) would give
# ac_cv_lib_$lib_fun, which is definitely not what was meant. Hence
# the AS_LITERAL_IF indirection.
#
# FIXME: This macro is extremely suspicious. It DEFINEs unconditionally,
# whatever the FUNCTION, in addition to not being a *S macro. Note
# that the cache does depend upon the function we are looking for.
#
# It is on purpose we used `ac_check_lib_ext_save_LIBS' and not just
# `ac_save_LIBS': there are many macros which don't want to see `LIBS'
# changed but still want to use AC_CHECK_LIB_EXT, so they save `LIBS'.
# And ``ac_save_LIBS' is too tempting a name, so let's leave them some
# freedom.
AC_DEFUN([AC_CHECK_LIB_EXT],
[
AH_CHECK_LIB_EXT([$1])
ac_check_lib_ext_save_LIBS=$LIBS
LIBS="-l$1 $$2 $7 $LIBS"
AS_LITERAL_IF([$1],
[AS_VAR_PUSHDEF([ac_Lib_ext], [ac_cv_lib_ext_$1])],
[AS_VAR_PUSHDEF([ac_Lib_ext], [ac_cv_lib_ext_$1''])])dnl
m4_ifval([$3],
[
AH_CHECK_FUNC_EXT([$3])
AS_LITERAL_IF([$1],
[AS_VAR_PUSHDEF([ac_Lib_func], [ac_cv_lib_ext_$1_$3])],
[AS_VAR_PUSHDEF([ac_Lib_func], [ac_cv_lib_ext_$1''_$3])])dnl
AC_CACHE_CHECK([for $3 in -l$1], ac_Lib_func,
[AC_TRY_LINK_FUNC($3,
[AS_VAR_SET(ac_Lib_func, yes);
AS_VAR_SET(ac_Lib_ext, yes)],
[AS_VAR_SET(ac_Lib_func, no);
AS_VAR_SET(ac_Lib_ext, no)])
])
AS_IF([test AS_VAR_GET(ac_Lib_func) = yes],
[AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$3))])dnl
AS_VAR_POPDEF([ac_Lib_func])dnl
],[
AC_CACHE_CHECK([for -l$1], ac_Lib_ext,
[AC_TRY_LINK_FUNC([main],
[AS_VAR_SET(ac_Lib_ext, yes)],
[AS_VAR_SET(ac_Lib_ext, no)])
])
])
LIBS=$ac_check_lib_ext_save_LIBS
AS_IF([test AS_VAR_GET(ac_Lib_ext) = yes],
[m4_default([$4],
[AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_LIB$1))
case "$$2" in
*-l$1*)
;;
*)
$2="-l$1 $$2"
;;
esac])
[$6]
],
[$5])dnl
AS_VAR_POPDEF([ac_Lib_ext])dnl
])# AC_CHECK_LIB_EXT
# AH_CHECK_LIB_EXT(LIBNAME)
# ---------------------
m4_define([AH_CHECK_LIB_EXT],
[AH_TEMPLATE(AS_TR_CPP(HAVE_LIB$1),
[Define to 1 if you have the `]$1[' library (-l]$1[).])])
# AC_CHECK_FUNCS_EXT(FUNCTION, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
# -----------------------------------------------------------------
dnl check for a function in a $LIBS and $OTHER_LIBS libraries variable.
dnl AC_CHECK_FUNC_EXT(func,OTHER_LIBS,IF-TRUE,IF-FALSE)
AC_DEFUN([AC_CHECK_FUNC_EXT],
[
AH_CHECK_FUNC_EXT($1)
ac_check_func_ext_save_LIBS=$LIBS
LIBS="$2 $LIBS"
AS_VAR_PUSHDEF([ac_var], [ac_cv_func_ext_$1])dnl
AC_CACHE_CHECK([for $1], ac_var,
[AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([$1])],
[AS_VAR_SET(ac_var, yes)],
[AS_VAR_SET(ac_var, no)])])
LIBS=$ac_check_func_ext_save_LIBS
AS_IF([test AS_VAR_GET(ac_var) = yes],
[AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1])) $3],
[$4])dnl
AS_VAR_POPDEF([ac_var])dnl
])# AC_CHECK_FUNC
# AH_CHECK_FUNC_EXT(FUNCNAME)
# ---------------------
m4_define([AH_CHECK_FUNC_EXT],
[AH_TEMPLATE(AS_TR_CPP(HAVE_$1),
[Define to 1 if you have the `]$1[' function.])])
dnl Define an AC_DEFINE with ifndef guard.
dnl AC_N_DEFINE(VARIABLE [, VALUE])
define(AC_N_DEFINE,
[cat >> confdefs.h <<\EOF
[#ifndef] $1
[#define] $1 ifelse($#, 2, [$2], $#, 3, [$2], 1)
[#endif]
EOF
])
dnl Add an #include
dnl AC_ADD_INCLUDE(VARIABLE)
define(AC_ADD_INCLUDE,
[cat >> confdefs.h <<\EOF
[#include] $1
EOF
])
dnl Copied from libtool.m4
AC_DEFUN(AC_PROG_LD_GNU,
[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
ac_cv_prog_gnu_ld=yes
else
ac_cv_prog_gnu_ld=no
fi])
])
dnl Removes -I/usr/include/? from given variable
AC_DEFUN(CFLAGS_REMOVE_USR_INCLUDE,[
ac_new_flags=""
for i in [$]$1; do
case [$]i in
-I/usr/include|-I/usr/include/) ;;
*) ac_new_flags="[$]ac_new_flags [$]i" ;;
esac
done
$1=[$]ac_new_flags
])
dnl Removes -L/usr/lib/? from given variable
AC_DEFUN(LIB_REMOVE_USR_LIB,[
ac_new_flags=""
for i in [$]$1; do
case [$]i in
-L/usr/lib|-L/usr/lib/) ;;
*) ac_new_flags="[$]ac_new_flags [$]i" ;;
esac
done
$1=[$]ac_new_flags
])
dnl From Bruno Haible.
AC_DEFUN(jm_ICONV,
[
dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
dnl those with the standalone portable libiconv installed).
AC_MSG_CHECKING(for iconv in $1)
jm_cv_func_iconv="no"
jm_cv_lib_iconv=no
jm_cv_giconv=no
AC_TRY_LINK([#include <stdlib.h>
#include <giconv.h>],
[iconv_t cd = iconv_open("","");
iconv(cd,NULL,NULL,NULL,NULL);
iconv_close(cd);],
jm_cv_func_iconv=yes
jm_cv_giconv=yes)
if test "$jm_cv_func_iconv" != yes; then
AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
[iconv_t cd = iconv_open("","");
iconv(cd,NULL,NULL,NULL,NULL);
iconv_close(cd);],
jm_cv_func_iconv=yes)
if test "$jm_cv_lib_iconv" != yes; then
jm_save_LIBS="$LIBS"
LIBS="$LIBS -lgiconv"
AC_TRY_LINK([#include <stdlib.h>
#include <giconv.h>],
[iconv_t cd = iconv_open("","");
iconv(cd,NULL,NULL,NULL,NULL);
iconv_close(cd);],
jm_cv_lib_iconv=yes
jm_cv_func_iconv=yes
jm_cv_giconv=yes)
LIBS="$jm_save_LIBS"
if test "$jm_cv_func_iconv" != yes; then
jm_save_LIBS="$LIBS"
LIBS="$LIBS -liconv"
AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
[iconv_t cd = iconv_open("","");
iconv(cd,NULL,NULL,NULL,NULL);
iconv_close(cd);],
jm_cv_lib_iconv=yes
jm_cv_func_iconv=yes)
LIBS="$jm_save_LIBS"
fi
fi
fi
if test "$jm_cv_func_iconv" = yes; then
if test "$jm_cv_giconv" = yes; then
AC_DEFINE(HAVE_GICONV, 1, [What header to include for iconv() function: giconv.h])
AC_MSG_RESULT(yes)
ICONV_FOUND=yes
else
AC_DEFINE(HAVE_ICONV, 1, [What header to include for iconv() function: iconv.h])
AC_MSG_RESULT(yes)
ICONV_FOUND=yes
fi
else
AC_MSG_RESULT(no)
fi
if test "$jm_cv_lib_iconv" = yes; then
if test "$jm_cv_giconv" = yes; then
LIBS="$LIBS -lgiconv"
else
LIBS="$LIBS -liconv"
fi
fi
])
dnl CFLAGS_ADD_DIR(CFLAGS, $INCDIR)
dnl This function doesn't add -I/usr/include into CFLAGS
AC_DEFUN(CFLAGS_ADD_DIR,[
if test "$2" != "/usr/include" ; then
$1="$$1 -I$2"
fi
])
dnl LIB_ADD_DIR(LDFLAGS, $LIBDIR)
dnl This function doesn't add -L/usr/lib into LDFLAGS
AC_DEFUN(LIB_ADD_DIR,[
if test "$2" != "/usr/lib" ; then
$1="$$1 -L$2"
fi
])
sinclude(build/m4/public.m4)
sinclude(build/m4/core.m4)