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mirror of git://sourceware.org/git/lvm2.git synced 2024-12-22 17:35:59 +03:00
lvm2/configure.in
Alasdair Kergon 608eedf88d Fix lvcreate corelog validation.
Add --config for overriding most config file settings from cmdline.
  Quote arguments when printing command line.
  Remove linefeed from 'initialising logging' message.
  Add 'Completed' debug message.
  Don't attempt library exit after reloading config files.
  Always compile with libdevmapper, even if device-mapper is disabled.
2006-05-16 16:48:31 +00:00

640 lines
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##
## Copyright (C) 2000-2004 Sistina Software, Inc. All rights reserved.
## Copyright (C) 2004 Red Hat, Inc. All rights reserved.
##
## This file is part of the LVM2.
##
## This copyrighted material is made available to anyone wishing to use,
## modify, copy, or redistribute it subject to the terms and conditions
## of the GNU General Public License v.2.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software Foundation,
## Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
################################################################################
AC_PREREQ(2.53)
################################################################################
dnl -- Process this file with autoconf to produce a configure script.
AC_INIT(lib/device/dev-cache.h)
################################################################################
AC_CONFIG_HEADERS(lib/misc/configure.h)
################################################################################
dnl -- Setup the directory where autoconf has auxilary files
AC_CONFIG_AUX_DIR(autoconf)
################################################################################
dnl -- Get system type
AC_CANONICAL_SYSTEM
case "$host_os" in
linux*)
CFLAGS="$CFLAGS"
COPTIMISE_FLAG="-O2"
CLDFLAGS="$CLDFLAGS -Wl,--version-script,.export.sym"
CLDWHOLEARCHIVE="-Wl,-whole-archive"
CLDNOWHOLEARCHIVE="-Wl,-no-whole-archive"
LDDEPS="$LDDEPS .export.sym"
LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
LIB_SUFFIX="so"
DEVMAPPER=yes
ODIRECT=yes
SELINUX=yes
CLUSTER=internal
FSADM=no ;;
darwin*)
CFLAGS="$CFLAGS -no-cpp-precomp -fno-common"
COPTIMISE_FLAG="-O2"
CLDFLAGS="$CLDFLAGS"
CLDWHOLEARCHIVE="-all_load"
CLDNOWHOLEARCHIVE=
LDDEPS="$LDDEPS"
LDFLAGS="$LDFLAGS"
LIB_SUFFIX="dylib"
DEVMAPPER=yes
ODIRECT=no
SELINUX=no
CLUSTER=none
FSADM=no ;;
esac
################################################################################
dnl -- Checks for programs.
AC_PROG_AWK
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_RANLIB
AC_PATH_PROG(CFLOW_CMD, cflow)
AC_PATH_PROG(CSCOPE_CMD, cscope)
################################################################################
dnl -- Checks for header files.
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_HEADER_TIME
AC_CHECK_HEADERS(fcntl.h limits.h locale.h stddef.h syslog.h sys/file.h sys/ioctl.h sys/param.h sys/time.h,,AC_MSG_ERROR(bailing out))
AC_CHECK_HEADERS(assert.h ctype.h libgen.h signal.h stdio.h sys/mman.h sys/resource.h sys/stat.h sys/types.h sys/utsname.h sys/wait.h time.h,,AC_MSG_ERROR(bailing out))
case "$host_os" in
linux*)
AC_CHECK_HEADERS(asm/byteorder.h linux/fs.h malloc.h,,AC_MSG_ERROR(bailing out)) ;;
darwin*)
AC_CHECK_HEADERS(machine/endian.h sys/disk.h,,AC_MSG_ERROR(bailing out)) ;;
esac
################################################################################
dnl -- Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_MODE_T
AC_STRUCT_ST_RDEV
AC_STRUCT_TM
################################################################################
dnl -- Check for functions
AC_CHECK_FUNCS(gethostname getpagesize memset munmap setlocale strcasecmp strchr strdup strncasecmp strerror strrchr strstr strtol strtoul,,AC_MSG_ERROR(bailing out))
AC_FUNC_ALLOCA
AC_FUNC_CLOSEDIR_VOID
AC_FUNC_FORK
AC_FUNC_LSTAT
AC_FUNC_MALLOC
AC_FUNC_MEMCMP
AC_FUNC_MMAP
AC_FUNC_STAT
AC_FUNC_STRTOD
################################################################################
dnl -- Prefix is /usr by default, the exec_prefix default is setup later
AC_PREFIX_DEFAULT(/usr)
################################################################################
dnl -- Parallel make jobs?
AC_ARG_ENABLE(jobs, [ --enable-jobs=NUM Number of jobs to run simultaneously], JOBS=-j$enableval, JOBS=-j2)
################################################################################
dnl -- Setup the ownership of the files
AC_MSG_CHECKING(file owner)
OWNER="root"
AC_ARG_WITH(user,
[ --with-user=USER Set the owner of installed files ],
[ OWNER="$withval" ])
AC_MSG_RESULT($OWNER)
if test x$OWNER != x; then
OWNER="-o $OWNER"
fi
################################################################################
dnl -- Setup the group ownership of the files
AC_MSG_CHECKING(group owner)
GROUP="root"
AC_ARG_WITH(group,
[ --with-group=GROUP Set the group owner of installed files ],
[ GROUP="$withval" ])
AC_MSG_RESULT($GROUP)
if test x$GROUP != x; then
GROUP="-g $GROUP"
fi
################################################################################
dnl -- LVM1 tool fallback option
AC_MSG_CHECKING(whether to enable lvm1 fallback)
AC_ARG_ENABLE(lvm1_fallback, [ --enable-lvm1_fallback Use this to fall back and use LVM1 binaries if
device-mapper is missing from the kernel], LVM1_FALLBACK=$enableval, LVM1_FALLBACK=no)
AC_MSG_RESULT($LVM1_FALLBACK)
if test x$LVM1_FALLBACK = xyes; then
AC_DEFINE([LVM1_FALLBACK], 1, [Define to 1 if 'lvm' should fall back to using LVM1 binaries if device-mapper is missing from the kernel])
fi
################################################################################
dnl -- format1 inclusion type
AC_MSG_CHECKING(whether to include support for lvm1 metadata)
AC_ARG_WITH(lvm1,
[ --with-lvm1=TYPE LVM1 metadata support: internal/shared/none
[TYPE=internal] ],
[ LVM1="$withval" ],
[ LVM1="internal" ])
AC_MSG_RESULT($LVM1)
if [[ "x$LVM1" != xnone -a "x$LVM1" != xinternal -a "x$LVM1" != xshared ]];
then AC_MSG_ERROR(
--with-lvm1 parameter invalid
)
fi;
if test x$LVM1 = xinternal; then
AC_DEFINE([LVM1_INTERNAL], 1, [Define to 1 to include built-in support for LVM1 metadata.])
fi
################################################################################
dnl -- format_pool inclusion type
AC_MSG_CHECKING(whether to include support for GFS pool metadata)
AC_ARG_WITH(pool,
[ --with-pool=TYPE GFS pool read-only support: internal/shared/none
[TYPE=internal] ],
[ POOL="$withval" ],
[ POOL="internal" ])
AC_MSG_RESULT($POOL)
if [[ "x$POOL" != xnone -a "x$POOL" != xinternal -a "x$POOL" != xshared ]];
then AC_MSG_ERROR(
--with-pool parameter invalid
)
fi;
if test x$POOL = xinternal; then
AC_DEFINE([POOL_INTERNAL], 1, [Define to 1 to include built-in support for GFS pool metadata.])
fi
################################################################################
dnl -- cluster_locking inclusion type
AC_MSG_CHECKING(whether to include support for cluster locking)
AC_ARG_WITH(cluster,
[ --with-cluster=TYPE Cluster LVM locking support: internal/shared/none
[TYPE=internal] ],
[ CLUSTER="$withval" ])
AC_MSG_RESULT($CLUSTER)
if [[ "x$CLUSTER" != xnone -a "x$CLUSTER" != xinternal -a "x$CLUSTER" != xshared ]];
then AC_MSG_ERROR(
--with-cluster parameter invalid
)
fi;
if test x$CLUSTER = xinternal; then
AC_DEFINE([CLUSTER_LOCKING_INTERNAL], 1, [Define to 1 to include built-in support for clustered LVM locking.])
fi
################################################################################
dnl -- snapshots inclusion type
AC_MSG_CHECKING(whether to include snapshots)
AC_ARG_WITH(snapshots,
[ --with-snapshots=TYPE Snapshot support: internal/shared/none
[TYPE=internal] ],
[ SNAPSHOTS="$withval" ],
[ SNAPSHOTS="internal" ])
AC_MSG_RESULT($SNAPSHOTS)
if [[ "x$SNAPSHOTS" != xnone -a "x$SNAPSHOTS" != xinternal -a "x$SNAPSHOTS" != xshared ]];
then AC_MSG_ERROR(
--with-snapshots parameter invalid
)
fi;
if test x$SNAPSHOTS = xinternal; then
AC_DEFINE([SNAPSHOT_INTERNAL], 1, [Define to 1 to include built-in support for snapshots.])
fi
################################################################################
dnl -- mirrors inclusion type
AC_MSG_CHECKING(whether to include mirrors)
AC_ARG_WITH(mirrors,
[ --with-mirrors=TYPE Mirror support: internal/shared/none
[TYPE=internal] ],
[ MIRRORS="$withval" ],
[ MIRRORS="internal" ])
AC_MSG_RESULT($MIRRORS)
if [[ "x$MIRRORS" != xnone -a "x$MIRRORS" != xinternal -a "x$MIRRORS" != xshared ]];
then AC_MSG_ERROR(
--with-mirrors parameter invalid
)
fi;
if test x$MIRRORS = xinternal; then
AC_DEFINE([MIRRORED_INTERNAL], 1, [Define to 1 to include built-in support for mirrors.])
fi
################################################################################
dnl -- Enables staticly-linked tools
AC_MSG_CHECKING(whether to use static linking)
AC_ARG_ENABLE(static_link, [ --enable-static_link Use this to link the tools to their libraries
statically. Default is dynamic linking], STATIC_LINK=$enableval, STATIC_LINK=no)
AC_MSG_RESULT($STATIC_LINK)
################################################################################
dnl -- Enable readline
AC_MSG_CHECKING(whether to enable readline)
AC_ARG_ENABLE(readline, [ --enable-readline Enable readline support],
READLINE=$enableval, READLINE=no)
AC_MSG_RESULT($READLINE)
if test x$READLINE = xyes; then
AC_DEFINE([READLINE_SUPPORT], 1, [Define to 1 to include the LVM readline shell.])
fi
################################################################################
dnl -- Disable selinux
AC_MSG_CHECKING(whether to enable selinux support)
AC_ARG_ENABLE(selinux, [ --disable-selinux Disable selinux support],
SELINUX=$enableval)
AC_MSG_RESULT($SELINUX)
################################################################################
dnl -- Build cluster LVM daemon
AC_MSG_CHECKING(whether to build cluster LVM daemon)
AC_ARG_WITH(clvmd,
[ --with-clvmd=TYPE Build cluster LVM Daemon: cman/gulm/none/all
[TYPE=none] ],
[ CLVMD="$withval" ],
[ CLVMD="none" ])
if test x$CLVMD = xyes; then
CLVMD=all
fi
AC_MSG_RESULT($CLVMD)
dnl -- If clvmd enabled without cluster locking, automagically include it
if test x$CLVMD != xnone && test x$CLUSTER = xnone; then
CLUSTER=internal
fi
################################################################################
dnl -- Enable debugging
AC_MSG_CHECKING(whether to enable debugging)
AC_ARG_ENABLE(debug, [ --enable-debug Enable debugging],
DEBUG=$enableval, DEBUG=no)
AC_MSG_RESULT($DEBUG)
dnl -- Normally turn off optimisation for debug builds
if test x$DEBUG = xyes; then
COPTIMISE_FLAG=
else
CSCOPE_CMD=
fi
################################################################################
dnl -- Override optimisation
AC_MSG_CHECKING(for C optimisation flag)
AC_ARG_WITH(optimisation,
[ --with-optimisation=OPT C optimisation flag [OPT=-O2] ],
[ COPTIMISE_FLAG="$withval" ])
AC_MSG_RESULT($COPTIMISE_FLAG)
################################################################################
dnl -- Disable devmapper
AC_MSG_CHECKING(whether to use device-mapper)
AC_ARG_ENABLE(devmapper, [ --disable-devmapper Disable device-mapper interaction],
DEVMAPPER=$enableval)
AC_MSG_RESULT($DEVMAPPER)
if test x$DEVMAPPER = xyes; then
AC_DEFINE([DEVMAPPER_SUPPORT], 1, [Define to 1 to enable device-mapper interaction.])
fi
################################################################################
dnl -- Disable O_DIRECT
AC_MSG_CHECKING(whether to enable O_DIRECT)
AC_ARG_ENABLE(o_direct, [ --disable-o_direct Disable O_DIRECT],
ODIRECT=$enableval)
AC_MSG_RESULT($ODIRECT)
if test x$ODIRECT = xyes; then
AC_DEFINE([O_DIRECT_SUPPORT], 1, [Define to 1 to enable O_DIRECT support.])
fi
################################################################################
dnl -- Enable cmdlib
AC_MSG_CHECKING(whether to compile liblvm2cmd.so)
AC_ARG_ENABLE(cmdlib, [ --enable-cmdlib Build shared command library],
CMDLIB=$enableval, CMDLIB=no)
AC_MSG_RESULT($CMDLIB)
if test x$CMDLIB = xyes; then
AC_DEFINE([CMDLIB], 1, [Define to 1 to build the shared command library.])
fi
################################################################################
dnl -- Enable fsadm
AC_MSG_CHECKING(whether to build fsadm)
AC_ARG_ENABLE(fsadm, [ --enable-fsadm Enable fsadm],
FSADM=$enableval)
AC_MSG_RESULT($FSADM)
################################################################################
dnl -- enable dmeventd handling
AC_MSG_CHECKING(whether to use dmeventd)
AC_ARG_ENABLE(dmeventd, [ --enable-dmeventd Enable the device-mapper event daemon],
DMEVENTD=$enableval)
AC_MSG_RESULT($DMEVENTD)
dnl -- dmeventd currently requires internal mirror support
if test x$DMEVENTD = xyes && test x$MIRRORS != xinternal; then
AC_MSG_ERROR(
--enable-dmeventd currently requires --with-mirrors=internal
)
fi
if test x$DMEVENTD = xyes; then
AC_DEFINE([DMEVENTD], 1, [Define to 1 to enable the device-mapper event daemon.])
fi
################################################################################
dnl -- Mess with default exec_prefix
if [[ "x$exec_prefix" = xNONE -a "x$prefix" = xNONE ]];
then exec_prefix="";
fi;
################################################################################
dnl -- Checks for library functions.
AC_PROG_GCC_TRADITIONAL
AC_TYPE_SIGNAL
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(mkdir rmdir uname,,AC_MSG_ERROR(bailing out))
################################################################################
dnl -- Check for termcap (Shamelessly copied from parted 1.4.17)
if test x$READLINE = xyes; then
AC_SEARCH_LIBS(tgetent, ncurses curses termcap termlib, ,
AC_MSG_ERROR(
termcap could not be found which is required for the
--enable-readline option (which is enabled by default). Either disable readline
support with --disable-readline or download and install termcap from:
ftp.gnu.org/gnu/termcap
Note: if you are using precompiled packages you will also need the development
package as well (which may be called termcap-devel or something similar).
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.
)
)
fi
################################################################################
dnl -- Check for dlopen
AC_CHECK_LIB(dl, dlopen, HAVE_LIBDL=yes, HAVE_LIBDL=no)
if [[ "x$HAVE_LIBDL" = xyes ]]; then
AC_DEFINE([HAVE_LIBDL], 1, [Define to 1 if dynamic libraries are available.])
LIBS="-ldl $LIBS"
else
HAVE_LIBDL=no
fi
################################################################################
dnl -- Check for shared/static conflicts
if [[ \( "x$LVM1" = xshared -o "x$POOL" = xshared -o "x$CLUSTER" = xshared \
-o "x$SNAPSHOTS" = xshared -o "x$MIRRORS" = xshared \
\) -a "x$STATIC_LINK" = xyes ]];
then AC_MSG_ERROR(
Features cannot be 'shared' when building statically
)
fi
################################################################################
dnl -- Check for selinux
if test x$SELINUX = xyes; then
AC_MSG_CHECKING(for sepol_check_context function)
AC_CHECK_LIB(sepol, sepol_check_context, HAVE_SEPOL=yes, HAVE_SEPOL=no)
AC_MSG_RESULT($HAVE_SEPOL)
if test x$HAVE_SEPOL = xyes; then
LIBS="-lsepol $LIBS"
fi
AC_MSG_CHECKING(for is_selinux_enabled function)
AC_CHECK_LIB(selinux, is_selinux_enabled, HAVE_SELINUX=yes, HAVE_SELINUX=no)
AC_MSG_RESULT($HAVE_SELINUX)
if test x$HAVE_SELINUX = xyes; then
AC_DEFINE([HAVE_SELINUX], 1, [Define to 1 to include support for selinux.])
LIBS="-lselinux $LIBS"
else
AC_MSG_WARN(Disabling selinux)
fi
fi
################################################################################
dnl -- Check for getopt
AC_CHECK_HEADERS(getopt.h, AC_DEFINE([HAVE_GETOPTLONG], 1, [Define to 1 to if getopt_long is available.]))
################################################################################
dnl -- Check for readline (Shamelessly copied from parted 1.4.17)
if test x$READLINE = xyes; then
AC_CHECK_LIB(readline, readline, ,
AC_MSG_ERROR(
GNU Readline could not be found which is required for the
--enable-readline option (which is enabled by default). Either disable readline
support with --disable-readline or download and install readline from:
ftp.gnu.org/gnu/readline
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).
)
)
AC_CHECK_FUNC(rl_completion_matches, AC_DEFINE([HAVE_RL_COMPLETION_MATCHES], 1, [Define to 1 if rl_completion_matches() is available.]))
fi
################################################################################
dnl -- Internationalisation stuff
AC_MSG_CHECKING(whether to enable internationalisation)
AC_ARG_ENABLE(nls, [ --enable-nls Enable Native Language Support],
INTL=$enableval, INTL=no)
AC_MSG_RESULT($INTL)
if test x$INTL = xyes; then
INTL_PACKAGE="lvm2"
AC_PATH_PROG(MSGFMT, msgfmt)
if [[ "x$MSGFMT" == x ]];
then AC_MSG_ERROR(
msgfmt not found in path $PATH
)
fi;
AC_ARG_WITH(localedir,
[ --with-localedir=DIR Translation files in DIR [PREFIX/share/locale]],
[ LOCALEDIR="$withval" ],
[ LOCALEDIR='${prefix}/share/locale' ])
fi
################################################################################
AC_ARG_WITH(confdir,
[ --with-confdir=DIR Configuration files in DIR [/etc]],
[ CONFDIR="$withval" ],
[ CONFDIR='/etc' ])
AC_ARG_WITH(staticdir,
[ --with-staticdir=DIR Static binary in DIR [EXEC_PREFIX/sbin]],
[ STATICDIR="$withval" ],
[ STATICDIR='${exec_prefix}/sbin' ])
################################################################################
dnl -- Ensure additional headers required
if test x$READLINE = xyes; then
AC_CHECK_HEADERS(readline/readline.h readline/history.h,,AC_MSG_ERROR(bailing out))
fi
if test x$CLVMD != xnone; then
AC_CHECK_HEADERS(mntent.h netdb.h netinet/in.h pthread.h search.h sys/mount.h sys/socket.h sys/uio.h sys/un.h utmpx.h,,AC_MSG_ERROR(bailing out))
AC_CHECK_FUNCS(dup2 getmntent memmove select socket,,AC_MSG_ERROR(bailing out))
AC_FUNC_GETMNTENT
# AC_FUNC_REALLOC
AC_FUNC_SELECT_ARGTYPES
fi
if test x$FSADM = xyes; then
AC_CHECK_HEADERS(fstab.h sys/mount.h sys/vfs.h,,AC_MSG_ERROR(bailing out))
AC_CHECK_FUNCS(memmove,,AC_MSG_ERROR(bailing out))
fi
if test x$CLUSTER != xnone; then
AC_CHECK_HEADERS(sys/socket.h sys/un.h,,AC_MSG_ERROR(bailing out))
AC_CHECK_FUNCS(socket,,AC_MSG_ERROR(bailing out))
fi
if test x$HAVE_LIBDL = xyes; then
AC_CHECK_HEADERS(dlfcn.h,,AC_MSG_ERROR(bailing out))
fi
if test x$INTL = xyes; then
AC_CHECK_HEADERS(libintl.h,,AC_MSG_ERROR(bailing out))
fi
AC_CHECK_HEADERS(libdevmapper.h,,AC_MSG_ERROR(bailing out))
if test x$HAVE_SELINUX = xyes; then
AC_CHECK_HEADERS(selinux/selinux.h,,AC_MSG_ERROR(bailing out))
fi
################################################################################
AC_PATH_PROG(MODPROBE_CMD, modprobe)
if test x$MODPROBE_CMD != x; then
AC_DEFINE_UNQUOTED([MODPROBE_CMD], ["$MODPROBE_CMD"], [The path to 'modprobe', if available.])
fi
################################################################################
if test "-f VERSION"; then
LVM_VERSION="\"`cat VERSION`\""
else
LVM_VERSION="Unknown"
fi
################################################################################
AC_SUBST(JOBS)
AC_SUBST(STATIC_LINK)
AC_SUBST(LVM1)
AC_SUBST(POOL)
AC_SUBST(SNAPSHOTS)
AC_SUBST(MIRRORS)
AC_SUBST(OWNER)
AC_SUBST(GROUP)
AC_SUBST(CFLAGS)
AC_SUBST(COPTIMISE_FLAG)
AC_SUBST(CLDFLAGS)
AC_SUBST(CLDWHOLEARCHIVE)
AC_SUBST(CLDNOWHOLEARCHIVE)
AC_SUBST(LDDEPS)
AC_SUBST(LDFLAGS)
AC_SUBST(LIB_SUFFIX)
AC_SUBST(LIBS)
AC_SUBST(LVM_VERSION)
AC_SUBST(LVM1_FALLBACK)
AC_SUBST(DEBUG)
AC_SUBST(DEVMAPPER)
AC_SUBST(HAVE_LIBDL)
AC_SUBST(HAVE_SELINUX)
AC_SUBST(CMDLIB)
AC_SUBST(MSGFMT)
AC_SUBST(LOCALEDIR)
AC_SUBST(CONFDIR)
AC_SUBST(STATICDIR)
AC_SUBST(INTL_PACKAGE)
AC_SUBST(INTL)
AC_SUBST(CLVMD)
AC_SUBST(CLUSTER)
AC_SUBST(FSADM)
AC_SUBST(DMEVENTD)
AC_SUBST(CFLOW_CMD)
AC_SUBST(CSCOPE_CMD)
################################################################################
dnl -- First and last lines should not contain files to generate in order to
dnl -- keep utility scripts running properly
AC_OUTPUT( \
Makefile \
make.tmpl \
daemons/Makefile \
daemons/clvmd/Makefile \
dmeventd/Makefile \
dmeventd/mirror/Makefile \
doc/Makefile \
include/Makefile \
lib/Makefile \
lib/format1/Makefile \
lib/format_pool/Makefile \
lib/locking/Makefile \
lib/mirror/Makefile \
lib/snapshot/Makefile \
man/Makefile \
po/Makefile \
tools/Makefile \
tools/version.h \
tools/fsadm/Makefile \
test/mm/Makefile \
test/device/Makefile \
test/format1/Makefile \
test/regex/Makefile \
test/filters/Makefile \
)
if test x$ODIRECT != xyes; then
AC_MSG_WARN(Warning: O_DIRECT disabled: low-memory pvmove may lock up)
fi
if test x$FSADM == xyes; then
AC_MSG_WARN(fsadm support is untested)
fi
if test x$DMEVENTD == xyes; then
AC_MSG_WARN(dmeventd support is untested)
fi