configure.ac - automake - Git at Google

 # Process this file with autoconf to produce a configure script.

 # Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
 # 2004, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
 #
 # This program 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, or (at your option)
 # any later version.
 #
 # This program 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, see <http://www.gnu.org/licenses/>.

 AC_INIT([GNU Automake], [1.11a], [bug-automake@gnu.org])

 m4_ifndef([AC_PACKAGE_URL],
 	  [AC_SUBST([PACKAGE_URL], [http://www.gnu.org/software/automake/])])

 AC_CONFIG_SRCDIR(automake.in)
 AC_CONFIG_AUX_DIR(lib)

 AC_CANONICAL_BUILD

 # Save the AUTOCONF setting before AM_INIT_AUTOMAKE overrides it; this
 # way we can run Autoconf tests from configure (or from the test
 # suite) without being bothered by `missing'.  Likewise for autoheader.
 AC_SUBST([am_AUTOCONF], ["${AUTOCONF-autoconf}"])
 AC_SUBST([am_AUTOHEADER], ["${AUTOHEADER-autoheader}"])

 AM_INIT_AUTOMAKE([1.10a dist-bzip2 filename-length-max=99 color-tests
 		  parallel-tests silent-rules])

 # The API version is the base version.  We must guarantee
 # compatibility for all releases with the same API version.
 # Our current rule is that:
 # * All releases, including the prereleases, in an X.Y series
 #   are compatible.  So 1.5.1c is compatible with 1.5.
 # * Prereleases on the trunk are all incompatible -- 1.5b and 1.5c
 #   aren't the same.
 APIVERSION=`echo "$VERSION" | sed -e 's/^\([[0-9]]*\.[[0-9]]*[[a-z]]*\).*$/\1/'`
 AC_SUBST([APIVERSION])

 # A versioned directory, defined here for convenience.
 AC_SUBST([pkgvdatadir], ["\${datadir}/$PACKAGE-$APIVERSION"])

 # $AUTOMAKE and $ACLOCAL are always run after a `cd $top_srcdir',
 # hence `.' is really what we want for perllibdir, libdir, and acdir.
 ACLOCAL="perllibdir=\"`pwd`/lib$PATH_SEPARATOR./lib\" \"`pwd`/aclocal\" --acdir=m4 -I m4"
 AUTOMAKE="perllibdir=\"`pwd`/lib$PATH_SEPARATOR./lib\" \"`pwd`/automake\" --libdir=lib"

 AC_PATH_PROG(PERL, perl)
 if test -z "$PERL"; then
    AC_MSG_ERROR([perl not found])
 fi
 $PERL -e 'require 5.006;' || {
    AC_MSG_ERROR(
 [perl 5.6 or better is required; perl 5.8.2 or better
 is recommended.  If you have several perl versions
 installed, select the one Automake should use using
   ./configure PERL=/path/to/perl])
 }

 # We require ithreads support, and version 5.7.2 for CLONE.
 AC_CACHE_CHECK([whether $PERL supports ithreads], [am_cv_prog_PERL_ithreads],
 [if $PERL -e '
     require 5.007_002;
     use Config;
     if ($Config{useithreads})
       {
 	require threads;
 	import threads;
 	require Thread::Queue;
 	import Thread::Queue;
 	exit 0;
       }
     exit 1;' >&AS_MESSAGE_LOG_FD 2>&1
 then
   am_cv_prog_PERL_ithreads=yes
 else
   am_cv_prog_PERL_ithreads=no
 fi])
 if test $am_cv_prog_PERL_ithreads = yes; then
   PERL_THREADS=1;
 else
   PERL_THREADS=0;
 fi
 AC_SUBST([PERL_THREADS])

 # The test suite will skip some tests if tex is absent.
 AC_CHECK_PROG([TEX], [tex], [tex])

 # Generate man pages.
 AM_MISSING_PROG([HELP2MAN], [help2man])

 # Test for Autoconf.  We run Autoconf in a subdirectory to ease
 # deletion of any files created (such as those added to
 # autom4te.cache).  We used to perform only the last of the three
 # following tests, but some users were unable to figure out that their
 # installation was broken since --version appeared to work.

 required_autoconf_version=2.62
 AC_CACHE_CHECK([whether autoconf is installed], [am_cv_autoconf_installed],
 [if AM_RUN_LOG([eval $am_AUTOCONF --version]);
 then
   am_cv_autoconf_installed=yes
 else
   am_cv_autoconf_installed=no
 fi])
 if test "$am_cv_autoconf_installed" = no; then
   AC_MSG_ERROR([Autoconf $required_autoconf_version or better is required.
     Please make sure it is installed and in your PATH.])
 fi

 AC_CACHE_CHECK([whether autoconf works], [am_cv_autoconf_works],
 [mkdir conftest
 echo 'AC''_INIT' > conftest/conftest.ac
 if AM_RUN_LOG([cd conftest && eval $am_AUTOCONF -o /dev/null conftest.ac]);
 then
   am_cv_autoconf_works=yes
 else
   am_cv_autoconf_works=no
 fi
 rm -rf conftest])
 if test "$am_cv_autoconf_works" = no; then
   AC_MSG_ERROR([The installed version of autoconf does not work.
     Please check config.log for error messages before this one.])
 fi

 AC_CACHE_CHECK([whether autoconf is recent enough], [am_cv_autoconf_version],
 [mkdir conftest
 dnl Creative quoting required to avoid spurious expansion of AC_PREREQ macro
 echo 'AC'"_PREREQ([[$required_autoconf_version]])" > conftest/conftest.ac
 if AM_RUN_LOG([cd conftest && eval $am_AUTOCONF -o /dev/null conftest.ac]);
 then
   am_cv_autoconf_version=yes
 else
   am_cv_autoconf_version=no
 fi
 rm -rf conftest])
 if test "$am_cv_autoconf_version" = no; then
   AC_MSG_ERROR([Autoconf $required_autoconf_version or better is required.])
 fi

 # Test for ln.  We need use it to install the versioned binaries.
 AC_MSG_CHECKING([whether ln works])
 AC_CACHE_VAL([am_cv_prog_ln], [
 rm -f conftest conftest.file
 : >conftest.file
 if ln conftest.file conftest 2>/dev/null; then
   am_cv_prog_ln=ln
 else
   am_cv_prog_ln='cp -p'
 fi
 rm -f conftest conftest.file])
 AC_SUBST([LN], [$am_cv_prog_ln])
 result=no
 test "x$am_cv_prog_ln" = xln && result=yes
 AC_MSG_RESULT([$result])

 # The amount we should wait after modifying files depends on the platform.
 # On Windows '95, '98 and ME, files modifications have 2-seconds
 # granularity and can be up to 3 seconds in the future w.r.t. the
 # system clock.  When it is important to ensure one file is older
 # than another we wait at least 5 seconds between creations.
 case $build in
   *-pc-msdosdjgpp) MODIFICATION_DELAY=5;;
   *)               MODIFICATION_DELAY=2;;
 esac
 AC_SUBST([MODIFICATION_DELAY])

 # Test for things needed by the test suite.
 AC_PROG_EGREP
 AC_PROG_FGREP

 AC_CACHE_CHECK([whether /bin/sh has working 'set -e' with exit trap],
 [am_cv_sh_errexit_works],
 [if /bin/sh -ec "trap 'exit \$?' 0; (exit 77); exit 77"; test $? = 77
 then
   am_cv_sh_errexit_works=yes
 else
   am_cv_sh_errexit_works=no
 fi
 ])
 if test $am_cv_sh_errexit_works = no; then
   AC_MSG_WARN([`${MAKE-make} check' will leave leftover directories tests/*.dir])
   AC_MSG_WARN([you can clean them up manually using `${MAKE-make} clean' or])
   AC_MSG_WARN([`cd tests && ${MAKE-make} clean-local-check'])
   dnl restore font-lock: `
 fi
 AC_SUBST([sh_errexit_works], [$am_cv_sh_errexit_works])

 AC_CONFIG_FILES([
   Makefile
   doc/Makefile
   lib/Automake/Makefile
   lib/Automake/tests/Makefile
   lib/Makefile
   lib/am/Makefile
   m4/Makefile
   tests/Makefile
   tests/defs
 ])
 AC_CONFIG_FILES([tests/aclocal-${APIVERSION}:tests/aclocal.in],
                 [chmod +x tests/aclocal-${APIVERSION}],
 	        [APIVERSION=$APIVERSION])
 AC_CONFIG_FILES([tests/automake-${APIVERSION}:tests/automake.in],
                 [chmod +x tests/automake-${APIVERSION}])

 AC_OUTPUT
	# Process this file with autoconf to produce a configure script.

	# Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
	# 2004, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
	#
	# This program 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, or (at your option)
	# any later version.
	#
	# This program 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, see <http://www.gnu.org/licenses/>.

	AC_INIT([GNU Automake], [1.11a], [bug-automake@gnu.org])

	m4_ifndef([AC_PACKAGE_URL],
	[AC_SUBST([PACKAGE_URL], [http://www.gnu.org/software/automake/])])

	AC_CONFIG_SRCDIR(automake.in)
	AC_CONFIG_AUX_DIR(lib)

	AC_CANONICAL_BUILD

	# Save the AUTOCONF setting before AM_INIT_AUTOMAKE overrides it; this
	# way we can run Autoconf tests from configure (or from the test
	# suite) without being bothered by `missing'. Likewise for autoheader.
	AC_SUBST([am_AUTOCONF], ["${AUTOCONF-autoconf}"])
	AC_SUBST([am_AUTOHEADER], ["${AUTOHEADER-autoheader}"])

	AM_INIT_AUTOMAKE([1.10a dist-bzip2 filename-length-max=99 color-tests
	parallel-tests silent-rules])

	# The API version is the base version. We must guarantee
	# compatibility for all releases with the same API version.
	# Our current rule is that:
	# * All releases, including the prereleases, in an X.Y series
	# are compatible. So 1.5.1c is compatible with 1.5.
	# * Prereleases on the trunk are all incompatible -- 1.5b and 1.5c
	# aren't the same.
	APIVERSION=`echo "$VERSION" \| sed -e 's/^\([[0-9]]\.[[0-9]][[a-z]]\).$/\1/'`
	AC_SUBST([APIVERSION])

	# A versioned directory, defined here for convenience.
	AC_SUBST([pkgvdatadir], ["\${datadir}/$PACKAGE-$APIVERSION"])

	# $AUTOMAKE and $ACLOCAL are always run after a `cd $top_srcdir',
	# hence `.' is really what we want for perllibdir, libdir, and acdir.
	ACLOCAL="perllibdir=\"`pwd`/lib$PATH_SEPARATOR./lib\" \"`pwd`/aclocal\" --acdir=m4 -I m4"
	AUTOMAKE="perllibdir=\"`pwd`/lib$PATH_SEPARATOR./lib\" \"`pwd`/automake\" --libdir=lib"

	AC_PATH_PROG(PERL, perl)
	if test -z "$PERL"; then
	AC_MSG_ERROR([perl not found])
	fi
	$PERL -e 'require 5.006;' \|\| {
	AC_MSG_ERROR(
	[perl 5.6 or better is required; perl 5.8.2 or better
	is recommended. If you have several perl versions
	installed, select the one Automake should use using
	./configure PERL=/path/to/perl])
	}

	# We require ithreads support, and version 5.7.2 for CLONE.
	AC_CACHE_CHECK([whether $PERL supports ithreads], [am_cv_prog_PERL_ithreads],
	[if $PERL -e '
	require 5.007_002;
	use Config;
	if ($Config{useithreads})
	{
	require threads;
	import threads;
	require Thread::Queue;
	import Thread::Queue;
	exit 0;
	}
	exit 1;' >&AS_MESSAGE_LOG_FD 2>&1
	then
	am_cv_prog_PERL_ithreads=yes
	else
	am_cv_prog_PERL_ithreads=no
	fi])
	if test $am_cv_prog_PERL_ithreads = yes; then
	PERL_THREADS=1;
	else
	PERL_THREADS=0;
	fi
	AC_SUBST([PERL_THREADS])

	# The test suite will skip some tests if tex is absent.
	AC_CHECK_PROG([TEX], [tex], [tex])

	# Generate man pages.
	AM_MISSING_PROG([HELP2MAN], [help2man])

	# Test for Autoconf. We run Autoconf in a subdirectory to ease
	# deletion of any files created (such as those added to
	# autom4te.cache). We used to perform only the last of the three
	# following tests, but some users were unable to figure out that their
	# installation was broken since --version appeared to work.

	required_autoconf_version=2.62
	AC_CACHE_CHECK([whether autoconf is installed], [am_cv_autoconf_installed],
	[if AM_RUN_LOG([eval $am_AUTOCONF --version]);
	then
	am_cv_autoconf_installed=yes
	else
	am_cv_autoconf_installed=no
	fi])
	if test "$am_cv_autoconf_installed" = no; then
	AC_MSG_ERROR([Autoconf $required_autoconf_version or better is required.
	Please make sure it is installed and in your PATH.])
	fi

	AC_CACHE_CHECK([whether autoconf works], [am_cv_autoconf_works],
	[mkdir conftest
	echo 'AC''_INIT' > conftest/conftest.ac
	if AM_RUN_LOG([cd conftest && eval $am_AUTOCONF -o /dev/null conftest.ac]);
	then
	am_cv_autoconf_works=yes
	else
	am_cv_autoconf_works=no
	fi
	rm -rf conftest])
	if test "$am_cv_autoconf_works" = no; then
	AC_MSG_ERROR([The installed version of autoconf does not work.
	Please check config.log for error messages before this one.])
	fi

	AC_CACHE_CHECK([whether autoconf is recent enough], [am_cv_autoconf_version],
	[mkdir conftest
	dnl Creative quoting required to avoid spurious expansion of AC_PREREQ macro
	echo 'AC'"_PREREQ([[$required_autoconf_version]])" > conftest/conftest.ac
	if AM_RUN_LOG([cd conftest && eval $am_AUTOCONF -o /dev/null conftest.ac]);
	then
	am_cv_autoconf_version=yes
	else
	am_cv_autoconf_version=no
	fi
	rm -rf conftest])
	if test "$am_cv_autoconf_version" = no; then
	AC_MSG_ERROR([Autoconf $required_autoconf_version or better is required.])
	fi

	# Test for ln. We need use it to install the versioned binaries.
	AC_MSG_CHECKING([whether ln works])
	AC_CACHE_VAL([am_cv_prog_ln], [
	rm -f conftest conftest.file
	: >conftest.file
	if ln conftest.file conftest 2>/dev/null; then
	am_cv_prog_ln=ln
	else
	am_cv_prog_ln='cp -p'
	fi
	rm -f conftest conftest.file])
	AC_SUBST([LN], [$am_cv_prog_ln])
	result=no
	test "x$am_cv_prog_ln" = xln && result=yes
	AC_MSG_RESULT([$result])

	# The amount we should wait after modifying files depends on the platform.
	# On Windows '95, '98 and ME, files modifications have 2-seconds
	# granularity and can be up to 3 seconds in the future w.r.t. the
	# system clock. When it is important to ensure one file is older
	# than another we wait at least 5 seconds between creations.
	case $build in
	*-pc-msdosdjgpp) MODIFICATION_DELAY=5;;
	*) MODIFICATION_DELAY=2;;
	esac
	AC_SUBST([MODIFICATION_DELAY])

	# Test for things needed by the test suite.
	AC_PROG_EGREP
	AC_PROG_FGREP

	AC_CACHE_CHECK([whether /bin/sh has working 'set -e' with exit trap],
	[am_cv_sh_errexit_works],
	[if /bin/sh -ec "trap 'exit \$?' 0; (exit 77); exit 77"; test $? = 77
	then
	am_cv_sh_errexit_works=yes
	else
	am_cv_sh_errexit_works=no
	fi
	])
	if test $am_cv_sh_errexit_works = no; then
	AC_MSG_WARN([`${MAKE-make} check' will leave leftover directories tests/*.dir])
	AC_MSG_WARN([you can clean them up manually using `${MAKE-make} clean' or])
	AC_MSG_WARN([`cd tests && ${MAKE-make} clean-local-check'])
	dnl restore font-lock: `
	fi
	AC_SUBST([sh_errexit_works], [$am_cv_sh_errexit_works])

	AC_CONFIG_FILES([
	Makefile
	doc/Makefile
	lib/Automake/Makefile
	lib/Automake/tests/Makefile
	lib/Makefile
	lib/am/Makefile
	m4/Makefile
	tests/Makefile
	tests/defs
	])
	AC_CONFIG_FILES([tests/aclocal-${APIVERSION}:tests/aclocal.in],
	[chmod +x tests/aclocal-${APIVERSION}],
	[APIVERSION=$APIVERSION])
	AC_CONFIG_FILES([tests/automake-${APIVERSION}:tests/automake.in],
	[chmod +x tests/automake-${APIVERSION}])

	AC_OUTPUT