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authorGeoffrey Keating <geoffk@geoffk.org>2006-11-14 02:04:57 +0000
committerGeoffrey Keating <geoffk@geoffk.org>2006-11-14 02:04:57 +0000
commit03c2a0f7396ca19ee3c957f9b187acba5e1ec92d (patch)
treea5acb6c6af464d35d450e85a47f057ff20bf0f08 /config/multi.m4
parent981be051b4f24e08e5a8edfa89abbb54caeb885e (diff)
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Merge ChangeLog and multi.m4 from GCC repository.
Diffstat (limited to 'config/multi.m4')
-rw-r--r--config/multi.m465
1 files changed, 65 insertions, 0 deletions
diff --git a/config/multi.m4 b/config/multi.m4
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+## -*- Autoconf -*-
+# Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006
+# Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 6
+
+# AM_ENABLE_MULTILIB([MAKEFILE], [REL-TO-TOP-SRCDIR])
+# ---------------------------------------------------
+# Add --enable-multilib to configure.
+AC_DEFUN([AM_ENABLE_MULTILIB],
+[# Default to --enable-multilib
+AC_ARG_ENABLE(multilib,
+[ --enable-multilib build many library versions (default)],
+[case "$enableval" in
+ yes) multilib=yes ;;
+ no) multilib=no ;;
+ *) AC_MSG_ERROR([bad value $enableval for multilib option]) ;;
+ esac],
+ [multilib=yes])
+
+# We may get other options which we leave undocumented:
+# --with-target-subdir, --with-multisrctop, --with-multisubdir
+# See config-ml.in if you want the gory details.
+
+if test "$srcdir" = "."; then
+ if test "$with_target_subdir" != "."; then
+ multi_basedir="$srcdir/$with_multisrctop../$2"
+ else
+ multi_basedir="$srcdir/$with_multisrctop$2"
+ fi
+else
+ multi_basedir="$srcdir/$2"
+fi
+AC_SUBST(multi_basedir)
+
+# Even if the default multilib is not a cross compilation,
+# it may be that some of the other multilibs are.
+if test $cross_compiling = no && test $multilib = yes \
+ && test "x${with_multisubdir}" != x ; then
+ cross_compiling=maybe
+fi
+
+AC_OUTPUT_COMMANDS([
+# Only add multilib support code if we just rebuilt the top-level
+# Makefile.
+case " $CONFIG_FILES " in
+ *" ]m4_default([$1],Makefile)[ "*)
+ ac_file=]m4_default([$1],Makefile)[ . ${multi_basedir}/config-ml.in
+ ;;
+esac],
+ [
+srcdir="$srcdir"
+host="$host"
+target="$target"
+with_multisubdir="$with_multisubdir"
+with_multisrctop="$with_multisrctop"
+with_target_subdir="$with_target_subdir"
+ac_configure_args="${multilib_arg} ${ac_configure_args}"
+multi_basedir="$multi_basedir"
+CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+CC="$CC"])])dnl