libtool/configure.ac
Gary V. Vaughan e46561b83e My thanks to Alexandre Duret-Lutz <adl@gnu.org> for the insight
required to write this changeset -- especially that ltmain.sh is
the same on any machine for a given release, which I hadn't
noticed for some bizarre reason: It turns out that generating
distributed files from configure causes no end of hassle, as
evidenced by the many patches I've generated over the last few
days to try and get the dist and distcheck make rules to work.
Instead of all that hair, we now simply generate our distributed
files (now including ltmain.sh) with make rules -- and since
automake creates make variables for all AC_SUBSTs, that is really
easy.  The code looks a lot more like automake and autoconf
Makefile.ams now, and doesn't have all the rough edges the earlier
hacky solution suffered from.  We still generate libtool from
config.status, but that is not a distributed file, and doesn't
break the golden rule.  Besides, there is way more going on there
than a bunch of substitutions:

* Makefile.am (edit): New common sed substitutions for files now
generated by make instead of config.status.
(CLEANFILES): Clean new tmp files.
(EXTRA_DIST): Add ltmain.sh.
(vcl-tmp): Reinstated.
(m4/ltversion.m4, config/ltmain.sh): New rules.  Generate from
here instead of config.status.
(libtoolize): Ditto.
(libtool): Call config.status to regenerate if necessary.
(dist-hook): Removed.
* config/ltmain.in: Moved here from top_srcdir.
* README-alpha: Update instructions to check AS_SHELL_SANITIZE is
up to date.
* bootstrap: Rewritten.  Generate m4/ltversion.m4 and
config/ltmain.sh because configure depends on them.
* configure.ac (AC_CONFIG_SRCDIR): Use libtoolize.in now that
ltmain.in has moved.
(AC_CONFIG_FILES): Don't generate distributed files,
config/ltmain.sh and libtoolize from config.status.  We have make
rules to do that now.
2004-07-30 23:02:39 +00:00

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## Process this file with autoconf to create configure. -*- autoconf -*-
# Copyright (C) 2001, 2004 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 of the License, 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
# 02111-1307 USA
AC_PREREQ(2.58) ## We use AS_HELP_STRING
## Oldest automake required for bootstrap is below in AM_INIT_AUTOMAKE.
## ------------------------ ##
## Autoconf initialisation. ##
## ------------------------ ##
AC_INIT([libtool], [1.5a], [bug-libtool@gnu.org])
AC_CONFIG_HEADERS([config.h:config-h.in])
AC_CONFIG_SRCDIR([libtoolize.in])
AC_CONFIG_AUX_DIR([config])
## ------------------------ ##
## Autotest initialisation. ##
## ------------------------ ##
dnl AC_CONFIG_TESTDIR([tests])
dnl AC_CONFIG_FILES([tests/atlocal])
## ---------------------------------------- ##
## Display a configure time version banner. ##
## ---------------------------------------- ##
# Calculating the previous version is somewhat involved, so do it once
# here, and SUBST the result for the maintainer release rules. The
# versioning scheme we use is described here:
# http://www.gnu.org/software/libtool/contribute.html
# First we break the version number up into its constituent parts.
lt_major=`echo "AC_PACKAGE_VERSION" | sed ['s,\..*$,,g']`
lt_minor=`echo "AC_PACKAGE_VERSION" | sed ['s,^[0-9]*\.\([0-9]*\).*$,\1,']`
lt_micro=`echo "AC_PACKAGE_VERSION" | sed ['s,^[0-9]*\.[0-9]*\(\.[0-9]*\).*$,\1,']`
lt_alpha=`echo "AC_PACKAGE_VERSION" | sed ['s,^[0-9.]*,,']`
test "$lt_minor" = "AC_PACKAGE_VERSION" && lt_minor=0
test "$lt_micro" = "AC_PACKAGE_VERSION" && lt_micro=""
# Then we try to work out what the release before this one would have been
# numbered. The only time we come unstuck is when this is the first release
# from a stable branch (lt_micro=lt_alpha=""), so LASTRELEASE is the last
# release from the old stable branch, and we don't know what version that
# was, so leave it unset so that the Makefile can complain.
case $lt_alpha in
[[ab]])
case $lt_micro in
[.[01]])
LASTRELEASE="$lt_major.$lt_minor" ;;
*)
LASTRELEASE="$lt_major.$lt_minor$lt_micro" ;;
esac
;;
[[cegikmoqsuwy]])
LASTRELEASE=`echo "AC_PACKAGE_VERSION" | tr 'c-y' 'b-w'` ;;
[[dfhjlnprtvxz]])
LASTRELEASE=`echo "AC_PACKAGE_VERSION" | tr 'd-z' 'b-x'` ;;
*) # No lt_alpha component
case $lt_micro in
.0)
LASTRELEASE="" ;;
.1)
LASTRELEASE="$lt_major.$lt_minor" ;;
.*)
lt_micro_value=`echo $lt_micro | sed 's,^\.,,'`
LASTRELEASE="$lt_major.$lt_minor.`expr $lt_micro_value - 1`" ;;
*)
LASTRELEASE="" ;;
esac
;;
esac
AC_SUBST([LASTRELEASE])
# This is a sanity check so we can see which version is used in bug reports.
# It is assumed that we only want to see the date extension for cvs libtool
# versions (i.e. "odd" letters) and not actual alpha releases.
TIMESTAMP=`${CONFIG_SHELL} ${ac_aux_dir}/mkstamp < ${srcdir}/ChangeLog`
package_revision=`( set $TIMESTAMP; echo $1; )`
case $lt_alpha in
[[bdfhjlnprtvxz]])
TIMESTAMP=
;;
esac
AS_BOX([Configuring AC_PACKAGE_TARNAME${TIMESTAMP:+" (Build:$TIMESTAMP)"} AC_PACKAGE_VERSION])
echo
AC_SUBST([TIMESTAMP])
AC_SUBST([package_revision])
## ------------------------ ##
## Automake Initialisation. ##
## ------------------------ ##
dnl These are bootstrap requirements, once built, libtool may work with
dnl much older releases of autoconf and automake. See release notes.
AM_INIT_AUTOMAKE([1.8 gnits dist-bzip2]) ## We use auto-m4_including
dnl Make sure config.status is regenerated when the version timestamp changes
AC_SUBST([CONFIG_STATUS_DEPENDENCIES], ['$(top_builddir)/stamp-vcl'])
## ------------------------------- ##
## Libtool specific configuration. ##
## ------------------------------- ##
pkgdatadir='${datadir}'"/${PACKAGE}"
AC_SUBST([pkgdatadir]) # automake does not need this, but libtoolize does
aclocaldir='${datadir}/aclocal'
AC_SUBST([aclocaldir])
AC_ARG_ENABLE(ltdl-install,
[AS_HELP_STRING([--disable-ltdl-install], [do not install libltdl])])
if test x"${enable_ltdl_install+set}" != xset; then
enable_ltdl_install=yes
fi
# All subdirectories that are configured on demand, but that must be
# included in the distribution. This substitution is for tests/Makefile.am,
# so the directory names are relative to that directory.
CONF_SUBDIRS="cdemo demo depdemo f77demo mdemo mdemo2 pdemo tagdemo"
AC_SUBST([CONF_SUBDIRS])
DIST_MAKEFILE_LIST=
for dir in $CONF_SUBDIRS; do
DIST_MAKEFILE_LIST="${DIST_MAKEFILE_LIST}tests/$dir/Makefile "
done
AC_SUBST([DIST_MAKEFILE_LIST])
## ---------------- ##
## compiler checks. ##
## ---------------- ##
# Use the specified CC and LD
AC_PROG_CC
AC_EXEEXT
AC_PROG_LD
AC_PROG_NM
AC_PROG_LN_S
# The Autoconf tests for C++ and Fortran 77 sometimes call AC_MSG_ERROR
# and we don't want that to be an error whilst creating the libtool script.
# As these are AC_REQUIREd inside libtool.m4 we can simply call them here
# and catch the errors now.
pushdef([AC_MSG_ERROR], [caught_CXX_error=yes])
AC_PROG_CXX
AC_PROG_CXXCPP
popdef([AC_MSG_ERROR])
pushdef([AC_MSG_ERROR], [caught_F77_error=yes])
AC_PROG_F77
popdef([AC_MSG_ERROR])
## ----------------------- ##
## Libtool initialisation. ##
## ----------------------- ##
LT_INIT([dlopen win32-dll])
AC_LIB_LTDL
# Enable all the language support we can
LT_LANG(C++)
LT_LANG(Fortran 77)
LT_LANG(Java)
LT_LANG(Windows Resource)
## --------------------------- ##
## Work out which tests to run ##
## --------------------------- ##
AM_CONDITIONAL(HAVE_CXX,
[test "X$caught_CXX_error" != "Xyes" &&
test -n "[$]_LT_AC_TAGVAR(compiler, CXX)"])
AM_CONDITIONAL(HAVE_F77,
[test "X$caught_F77_error" != "Xyes" &&
test -n "[$]_LT_AC_TAGVAR(compiler, F77)"])
AM_CONDITIONAL(HAVE_GCJ, [test -n "[$]_LT_AC_TAGVAR(compiler, GCJ)"])
AM_CONDITIONAL(HAVE_RC, [test -n "[$]_LT_AC_TAGVAR(compiler, RC)"])
## -------- ##
## Outputs. ##
## -------- ##
AC_CONFIG_FILES([Makefile libltdl/Makefile libltdl/loaders/Makefile
doc/Makefile tests/Makefile])
AC_OUTPUT