mirror_zfs/configure.ac
Brian Behlendorf 16b719f006 Allow spl_config.h to be included by dependant packages (updated)
We need dependent packages to be able to include spl_config.h to
build properly.  This was partially solved in commit 0cbaeb1 by using
AH_BOTTOM to #undef common #defines (PACKAGE, VERSION, etc) which
autoconf always adds and cannot be easily removed.  This solution
works as long as the spl_config.h is included before your projects
config.h.  That turns out to be easier said than done.  In particular,
this is a problem when your package includes its config.h using the
-include gcc option which ensures the first thing included is your
config.h.

To handle all cases cleanly I have removed the AH_BOTTOM hack and
replaced it with an AC_CONFIG_HEADERS command.  This command runs
immediately after spl_config.h is written and with a little awk-foo
it strips the offending #defines from the file.  This eliminates
the problem entirely and makes header safe for inclusion.

Also in this change I have removed the few places in the code where
spl_config.h is included.  It is now added to the gcc compile line
to ensure the config results are always available.

Finally, I have also disabled the verbose kernel builds.  If you
want them back you can always build with 'make V=1'.  Since things
are working now they don't need to be on by default.
2010-03-22 14:45:33 -07:00

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/*
* This file is part of the SPL: Solaris Porting Layer.
*
* Copyright (c) 2008 Lawrence Livermore National Security, LLC.
* Produced at Lawrence Livermore National Laboratory
* Written by:
* Brian Behlendorf <behlendorf1@llnl.gov>,
* Herb Wartens <wartens2@llnl.gov>,
* Jim Garlick <garlick@llnl.gov>
* UCRL-CODE-235197
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
AC_INIT
AC_LANG(C)
SPL_AC_META
AC_CONFIG_AUX_DIR([config])
AC_CANONICAL_SYSTEM
AM_MAINTAINER_MODE
AM_INIT_AUTOMAKE([$SPL_META_NAME], [$SPL_META_VERSION])
AC_CONFIG_HEADERS([spl_config.h], [
(mv spl_config.h spl_config.h.tmp &&
awk -f config/config.awk spl_config.h.tmp >spl_config.h &&
rm spl_config.h.tmp) || exit 1])
AC_PROG_INSTALL
AC_PROG_CC
AC_PROG_LIBTOOL
SPL_AC_LICENSE
SPL_AC_CONFIG
AC_CONFIG_FILES([
Makefile
lib/Makefile
cmd/Makefile
module/Makefile
module/spl/Makefile
module/splat/Makefile
include/Makefile
scripts/Makefile
spl.spec
spl-modules.spec
])
AC_OUTPUT