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git://git.savannah.gnu.org/libtool.git
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260 lines
8.1 KiB
Bash
260 lines
8.1 KiB
Bash
## libtool.m4 - Configure libtool for the target system. -*-Shell-script-*-
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## Copyright (C) 1996-1998 Free Software Foundation, Inc.
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## Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 2 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful, but
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## WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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## General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program; if not, write to the Free Software
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## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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##
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## As a special exception to the GNU General Public License, if you
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## distribute this file as part of a program that contains a
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## configuration script generated by Autoconf, you may include it under
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## the same distribution terms that you use for the rest of that program.
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# serial 24 AM_PROG_LIBTOOL
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AC_DEFUN(AM_PROG_LIBTOOL,
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[AC_REQUIRE([AM_ENABLE_SHARED])dnl
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AC_REQUIRE([AM_ENABLE_STATIC])dnl
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AC_REQUIRE([AC_CANONICAL_HOST])dnl
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AC_REQUIRE([AC_PROG_RANLIB])dnl
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AC_REQUIRE([AC_PROG_CC])dnl
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AC_REQUIRE([AM_PROG_LD])dnl
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AC_REQUIRE([AM_PROG_NM])dnl
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AC_REQUIRE([AC_PROG_LN_S])dnl
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dnl
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# Always use our own libtool.
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LIBTOOL='$(SHELL) $(top_builddir)/libtool'
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AC_SUBST(LIBTOOL)dnl
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# Check for any special flags to pass to ltconfig.
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libtool_flags=
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test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
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test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
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test "$silent" = yes && libtool_flags="$libtool_flags --silent"
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test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
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test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
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# Some flags need to be propagated to the compiler or linker for good
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# libtool support.
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case "$host" in
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*-*-irix6*)
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# Find out which ABI we are using.
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echo '[#]line __oline__ "configure"' > conftest.$ac_ext
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if AC_TRY_EVAL(ac_compile); then
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case "`/usr/bin/file conftest.o`" in
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*32-bit*)
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LD="${LD-ld} -32"
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;;
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*N32*)
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LD="${LD-ld} -n32"
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;;
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*64-bit*)
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LD="${LD-ld} -64"
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;;
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esac
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fi
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rm -rf conftest*
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;;
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*-*-sco3.2v5*)
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# On SCO OpenServer 5, we need -belf to get full-featured binaries.
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CFLAGS="$CFLAGS -belf"
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;;
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esac
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# Actually configure libtool. ac_aux_dir is where install-sh is found.
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CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
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LD="$LD" NM="$NM" RANLIB="$RANLIB" LN_S="$LN_S" \
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${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig \
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$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
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|| AC_MSG_ERROR([libtool configure failed])
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])
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# AM_ENABLE_SHARED - implement the --enable-shared flag
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# Usage: AM_ENABLE_SHARED[(DEFAULT)]
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# Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
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# `yes'.
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AC_DEFUN(AM_ENABLE_SHARED,
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[define([AM_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
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AC_ARG_ENABLE(shared,
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changequote(<<, >>)dnl
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<< --enable-shared build shared libraries [default=>>AM_ENABLE_SHARED_DEFAULT]
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changequote([, ])dnl
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[ --enable-shared=PKGS only build shared libraries if the current package
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appears as an element in the PKGS list],
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[p=${PACKAGE-default}
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case "$enableval" in
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yes) enable_shared=yes ;;
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no) enable_shared=no ;;
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*)
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enable_shared=no
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# Look at the argument we got. We use all the common list separators.
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IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
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for pkg in $enableval; do
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if test "X$pkg" = "X$p"; then
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enable_shared=yes
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fi
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done
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IFS="$ac_save_ifs"
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;;
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esac],
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enable_shared=AM_ENABLE_SHARED_DEFAULT)dnl
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])
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# AM_DISABLE_SHARED - set the default shared flag to --disable-shared
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AC_DEFUN(AM_DISABLE_SHARED,
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[AM_ENABLE_SHARED(no)])
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# AM_DISABLE_STATIC - set the default static flag to --disable-static
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AC_DEFUN(AM_DISABLE_STATIC,
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[AM_ENABLE_STATIC(no)])
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# AM_ENABLE_STATIC - implement the --enable-static flag
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# Usage: AM_ENABLE_STATIC[(DEFAULT)]
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# Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
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# `yes'.
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AC_DEFUN(AM_ENABLE_STATIC,
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[define([AM_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
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AC_ARG_ENABLE(static,
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changequote(<<, >>)dnl
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<< --enable-static build static libraries [default=>>AM_ENABLE_STATIC_DEFAULT]
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changequote([, ])dnl
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[ --enable-static=PKGS only build shared libraries if the current package
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appears as an element in the PKGS list],
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[p=${PACKAGE-default}
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case "$enableval" in
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yes) enable_static=yes ;;
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no) enable_static=no ;;
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*)
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enable_static=no
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# Look at the argument we got. We use all the common list separators.
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IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
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for pkg in $enableval; do
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if test "X$pkg" = "X$p"; then
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enable_static=yes
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fi
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done
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IFS="$ac_save_ifs"
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;;
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esac],
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enable_static=AM_ENABLE_STATIC_DEFAULT)dnl
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])
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# AM_PROG_LD - find the path to the GNU or non-GNU linker
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AC_DEFUN(AM_PROG_LD,
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[AC_ARG_WITH(gnu-ld,
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[ --with-gnu-ld assume the C compiler uses GNU ld [default=no]],
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test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
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AC_REQUIRE([AC_PROG_CC])
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ac_prog=ld
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if test "$ac_cv_prog_gcc" = yes; then
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# Check if gcc -print-prog-name=ld gives a path.
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AC_MSG_CHECKING([for ld used by GCC])
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ac_prog=`($CC -print-prog-name=ld) 2>&5`
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case "$ac_prog" in
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# Accept absolute paths.
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/* | [A-Za-z]:\\*)
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test -z "$LD" && LD="$ac_prog"
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;;
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"")
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# If it fails, then pretend we aren't using GCC.
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ac_prog=ld
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;;
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*)
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# If it is relative, then search for the first ld in PATH.
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with_gnu_ld=unknown
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;;
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esac
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elif test "$with_gnu_ld" = yes; then
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AC_MSG_CHECKING([for GNU ld])
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else
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AC_MSG_CHECKING([for non-GNU ld])
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fi
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AC_CACHE_VAL(ac_cv_path_LD,
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[if test -z "$LD"; then
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IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
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for ac_dir in $PATH; do
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test -z "$ac_dir" && ac_dir=.
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if test -f "$ac_dir/$ac_prog"; then
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ac_cv_path_LD="$ac_dir/$ac_prog"
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# Check to see if the program is GNU ld. I'd rather use --version,
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# but apparently some GNU ld's only accept -v.
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# Break only if it was the GNU/non-GNU ld that we prefer.
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if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
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test "$with_gnu_ld" != no && break
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else
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test "$with_gnu_ld" != yes && break
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fi
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fi
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done
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IFS="$ac_save_ifs"
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else
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ac_cv_path_LD="$LD" # Let the user override the test with a path.
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fi])
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LD="$ac_cv_path_LD"
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if test -n "$LD"; then
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AC_MSG_RESULT($LD)
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else
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AC_MSG_RESULT(no)
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fi
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test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
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AC_SUBST(LD)
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AM_PROG_LD_GNU
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])
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AC_DEFUN(AM_PROG_LD_GNU,
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[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
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[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
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if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
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ac_cv_prog_gnu_ld=yes
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else
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ac_cv_prog_gnu_ld=no
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fi])
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])
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# AM_PROG_NM - find the path to a BSD-compatible name lister
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AC_DEFUN(AM_PROG_NM,
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[AC_MSG_CHECKING([for BSD-compatible nm])
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AC_CACHE_VAL(ac_cv_path_NM,
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[case "$NM" in
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/* | [A-Za-z]:\\*)
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ac_cv_path_NM="$NM" # Let the user override the test with a path.
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;;
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*)
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IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
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for ac_dir in /usr/ucb /usr/ccs/bin $PATH /bin; do
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test -z "$ac_dir" && ac_dir=.
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if test -f $ac_dir/nm; then
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# Check to see if the nm accepts a BSD-compat flag.
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# Adding the `sed 1q' prevents false positives on HP-UX, which says:
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# nm: unknown option "B" ignored
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if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
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ac_cv_path_NM="$ac_dir/nm -B"
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elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
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ac_cv_path_NM="$ac_dir/nm -p"
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else
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ac_cv_path_NM="$ac_dir/nm"
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fi
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break
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fi
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done
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IFS="$ac_save_ifs"
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test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
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;;
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esac])
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NM="$ac_cv_path_NM"
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AC_MSG_RESULT([$NM])
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AC_SUBST(NM)
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])
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