* automake.in (handle_multilib): Register all-multi.

(file_contents_internal): Insert n when concatenating actions
from "factored" rules.
* lib/config-ml.in: New file, from GCC, including a patch
from Ralf Corsepius (see GCC's PR 11526).
* lib/symlink-tree.in: New file, from GCC.
* lib/Makefile.am (dist_script_DATA): Add config-ml.in and
symlink-tree.
* lib/am/clean.am (distclean-generic): Do not delete Makefile here...
(distclean, maintainer-clean): ... do it here.
* lib/am/depend.am (distclean-depend): Likewise, replace by
(distclean, maintainer-clean): ... these.
* lib/am/multilib.am (all-recursive, install-recursive,
mostlyclean-recursive, clean-recursive, distclean-recursive,
maintainer-clean-recursive): Remove these rules.
(mostlyclean-am, clean-am, distclean-am, maintainer-clean-am): Replace
by ...
(mostlyclean, clean, distclean, maintainer-clean): ... these.
(all-am): Remove, done in handle_multilib.
(install-am): Replace by ...
(install-exec-am): ... this.
* tests/Makefile.am (TESTS): Add multlib.test.
* tests/multlib.test: New file, based on a test case by
Ralf Corsepius

12 files changed, 1129 insertions, 36 deletions

diff --git a/ChangeLog b/ChangeLog
index d4c232b94..e76647701 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,30 @@
+2003-07-23  Alexandre Duret-Lutz  <adl@gnu.org>
+
+	* automake.in (handle_multilib): Register all-multi.
+	(file_contents_internal): Insert \n when concatenating actions
+	from "factored" rules.
+	* lib/config-ml.in: New file, from GCC, including a patch
+	from Ralf Corsepius (see GCC's PR 11526).
+	* lib/symlink-tree.in: New file, from GCC.
+	* lib/Makefile.am (dist_script_DATA): Add config-ml.in and
+	symlink-tree.
+	* lib/am/clean.am (distclean-generic): Do not delete Makefile here...
+	(distclean, maintainer-clean): ... do it here.
+	* lib/am/depend.am (distclean-depend): Likewise, replace by
+	(distclean, maintainer-clean): ... these.
+	* lib/am/multilib.am (all-recursive, install-recursive,
+	mostlyclean-recursive, clean-recursive, distclean-recursive,
+	maintainer-clean-recursive): Remove these rules.
+	(mostlyclean-am, clean-am, distclean-am, maintainer-clean-am): Replace
+	by ...
+	(mostlyclean, clean, distclean, maintainer-clean): ... these.
+	(all-am): Remove, done in handle_multilib.
+	(install-am): Replace by ...
+	(install-exec-am): ... this.
+	* tests/Makefile.am (TESTS): Add multlib.test.
+	* tests/multlib.test: New file, based on a test case by
+	Ralf Corsepius
+
 2003-07-23  Tom Tromey  <tromey@redhat.com>
 
 	* lib/missing (autom4te): Typo.
diff --git a/automake.in b/automake.in
index 98c264411..4fb66e8e4 100755
--- a/automake.in
+++ b/automake.in
@@ -3329,9 +3329,10 @@ sub handle_tags
 # Handle multilib support.
 sub handle_multilib
 {
-    if ($seen_multilib && $relative_dir eq '.')
+  if ($seen_multilib && $relative_dir eq '.')
     {
-	$output_rules .= &file_contents ('multilib', new Automake::Location);
+      $output_rules .= &file_contents ('multilib', new Automake::Location);
+      push (@all, 'all-multi');
     }
 }
 
@@ -6402,7 +6403,14 @@ sub file_contents_internal ($$$%)
 	      if (defined $dependencies{$_} && $cond != FALSE)
 		{
 		  &depend ($_, @deps);
-		  $actions{$_} .= $actions;
+		  if ($actions{$_})
+		    {
+		      $actions{$_} .= "\n$actions";
+		    }
+		  else
+		    {
+		      $actions{$_} = $actions;
+		    }
 		}
 	      else
 		{
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 20df4498d..63a6db15e 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -28,7 +28,8 @@ dist_pkgvdata_DATA = COPYING INSTALL texinfo.tex ansi2knr.c ansi2knr.1
 ## what we want.  So we make them executable by hand.
 scriptdir = $(pkgvdatadir)
 dist_script_DATA = config.guess config.sub install-sh mdate-sh missing \
-mkinstalldirs elisp-comp ylwrap acinstall depcomp compile py-compile
+  mkinstalldirs elisp-comp ylwrap acinstall depcomp compile py-compile \
+  config-ml.in symlink-tree
 
 install-data-hook:
 	@$(POST_INSTALL)
diff --git a/lib/Makefile.in b/lib/Makefile.in
index 363acb875..b1073576e 100644
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -105,7 +105,8 @@ dist_pkgvdata_DATA = COPYING INSTALL texinfo.tex ansi2knr.c ansi2knr.1
 
 scriptdir = $(pkgvdatadir)
 dist_script_DATA = config.guess config.sub install-sh mdate-sh missing \
-mkinstalldirs elisp-comp ylwrap acinstall depcomp compile py-compile
+  mkinstalldirs elisp-comp ylwrap acinstall depcomp compile py-compile \
+  config-ml.in symlink-tree
 
 subdir = lib
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
@@ -365,7 +366,7 @@ mostlyclean-generic:
 clean-generic:
 
 distclean-generic:
-	-rm -f Makefile $(CONFIG_CLEAN_FILES)
+	-rm -f $(CONFIG_CLEAN_FILES)
 
 maintainer-clean-generic:
 	@echo "This command is intended for maintainers to use"
@@ -375,7 +376,7 @@ clean: clean-recursive
 clean-am: clean-generic mostlyclean-am
 
 distclean: distclean-recursive
-
+	-rm -f Makefile
 distclean-am: clean-am distclean-generic distclean-tags
 
 dvi: dvi-recursive
@@ -399,7 +400,7 @@ install-man:
 installcheck-am: installcheck-local
 
 maintainer-clean: maintainer-clean-recursive
-
+	-rm -f Makefile
 maintainer-clean-am: distclean-am maintainer-clean-generic
 
 mostlyclean: mostlyclean-recursive
diff --git a/lib/am/clean.am b/lib/am/clean.am
index 1b0e399a9..b344e1460 100644
--- a/lib/am/clean.am
+++ b/lib/am/clean.am
@@ -30,9 +30,19 @@ clean-generic:
 
 distclean-am: distclean-generic clean-am
 distclean-generic:
-	-rm -f Makefile $(CONFIG_CLEAN_FILES)
+	-rm -f $(CONFIG_CLEAN_FILES)
 %DISTCLEAN_RMS%
 
+## Makefiles and their dependencies cannot be cleaned by
+## an -am dependency, because that would prevent other distclean
+## dependencies from calling make recursively.  (The multilib
+## cleaning rules do this.)
+##
+## If you change distclean here, you probably also want to change
+## maintainer-clean below.
+distclean:
+	-rm -f Makefile
+
 maintainer-clean-am: maintainer-clean-generic distclean-am
 maintainer-clean-generic:
 ## FIXME: shouldn't we really print these messages before running
@@ -41,6 +51,10 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 %MAINTAINER_CLEAN_RMS%
 
+## See comment for distclean.
+maintainer-clean:
+	-rm -f Makefile
+
 .PHONY: clean mostlyclean distclean maintainer-clean \
 clean-generic mostlyclean-generic distclean-generic maintainer-clean-generic
 
diff --git a/lib/am/depend.am b/lib/am/depend.am
index 5e24ec186..be4eccc66 100644
--- a/lib/am/depend.am
+++ b/lib/am/depend.am
@@ -17,8 +17,12 @@
 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 ## 02111-1307, USA.
 
-distclean-am: distclean-depend
-distclean-depend:
+## Depdirs's files are dependency of this Makefile, so we should never
+## erase them in -am or -recursive rules; that would prevent any other
+## rules from being recursive (for instance multilib clean rules are
+## recursive).
+distclean:
 	-rm -rf %DEPDIRS%
 
-.PHONY: distclean-depend
+maintainer-clean:
+	-rm -rf %DEPDIRS%
diff --git a/lib/am/multilib.am b/lib/am/multilib.am
index c232c7575..a0d7b19ab 100644
--- a/lib/am/multilib.am
+++ b/lib/am/multilib.am
@@ -30,18 +30,6 @@ install-multi:
 
 .PHONY: all-multi install-multi
 
-if %?SUBDIRS%
-all-recursive: all-multi
-install-recursive: install-multi
-else !%?SUBDIRS%
-all-am: all-multi
-install-am: install-multi
-endif !%?SUBDIRS%
-
-mostlyclean-am: mostlyclean-multi
-clean-am: clean-multi
-distclean-am: distclean-multi
-maintainer-clean-am: maintainer-clean-multi
 
 mostlyclean-multi:
 	$(MULTICLEAN) $(AM_MAKEFLAGS) DO=mostlyclean multi-clean
@@ -54,15 +42,17 @@ maintainer-clean-multi:
 
 .PHONY: mostlyclean-multi clean-multi distclean-multi maintainer-clean-multi
 
+install-exec-am: install-multi
+## No uninstall rule?
+
 
-if %?SUBDIRS%
-mostlyclean-recursive: mostlyclean-multi
-clean-recursive: clean-multi
-distclean-recursive: distclean-multi
-maintainer-clean-recursive: maintainer-clean-multi
-else !%?SUBDIRS%
-mostlyclean-am: mostlyclean-multi
-clean-am: clean-multi
-distclean-am: distclean-multi
-maintainer-clean-am: maintainer-clean-multi
-endif !%?SUBDIRS%
+## These cleaning rules are recursive.  They should not be
+## registered as dependencies of *-am rules.  For instance
+## otherwise running `make clean' would cause both
+## clean-multi and mostlyclean-multi to be run, while only
+## clean-multi is really expected (since clean-multi recursively
+## call clean, it already do the job of mostlyclean).
+mostlyclean: mostlyclean-multi
+clean: clean-multi
+distclean: distclean-multi
+maintainer-clean: maintainer-clean-multi
diff --git a/lib/config-ml.in b/lib/config-ml.in
new file mode 100644
index 000000000..936883982
--- /dev/null
+++ b/lib/config-ml.in
@@ -0,0 +1,852 @@
+# Configure fragment invoked in the post-target section for subdirs
+# wanting multilib support.
+#
+# It is advisable to support a few --enable/--disable options to let the
+# user select which libraries s/he really wants.
+#
+# Subdirectories wishing to use multilib should put the following lines
+# in the "post-target" section of configure.in.
+#
+# if [ "${srcdir}" = "." ] ; then
+#   if [ "${with_target_subdir}" != "." ] ; then
+#     . ${with_multisrctop}../../config-ml.in
+#   else
+#     . ${with_multisrctop}../config-ml.in
+#   fi
+# else
+#   . ${srcdir}/../config-ml.in
+# fi
+#
+#
+# Things are complicated because 6 separate cases must be handled:
+# 2 (native, cross) x 3 (absolute-path, relative-not-dot, dot) = 6.
+#
+# srcdir=. is special.  It must handle make programs that don't handle VPATH.
+# To implement this, a symlink tree is built for each library and for each
+# multilib subdir.
+#
+# The build tree is layed out as
+#
+# ./
+#   newlib
+#   m68020/
+#          newlib
+#          m68881/
+#                 newlib
+#
+# The nice feature about this arrangement is that inter-library references
+# in the build tree work without having to care where you are.  Note that
+# inter-library references also work in the source tree because symlink trees
+# are built when srcdir=.
+#
+# Unfortunately, trying to access the libraries in the build tree requires
+# the user to manually choose which library to use as GCC won't be able to
+# find the right one.  This is viewed as the lesser of two evils.
+#
+# Configure variables:
+# ${with_target_subdir} = "." for native, or ${target_alias} for cross.
+# Set by top level Makefile.
+# ${with_multisrctop} = how many levels of multilibs there are in the source
+# tree.  It exists to handle the case of configuring in the source tree:
+# ${srcdir} is not constant.
+# ${with_multisubdir} = name of multilib subdirectory (eg: m68020/m68881).
+#
+# Makefile variables:
+# MULTISRCTOP = number of multilib levels in source tree (+1 if cross)
+# (FIXME: note that this is different than ${with_multisrctop}.  Check out.).
+# MULTIBUILDTOP = number of multilib levels in build tree
+# MULTIDIRS = list of multilib subdirs (eg: m68000 m68020 ...)
+# (only defined in each library's main Makefile).
+# MULTISUBDIR = installed subdirectory name with leading '/' (eg: /m68000)
+# (only defined in each multilib subdir).
+
+# FIXME: Multilib is currently disabled by default for everything other than
+# newlib.  It is up to each target to turn on multilib support for the other
+# libraries as desired.
+
+# Autoconf incoming variables:
+# srcdir, host, ac_configure_args
+#
+# We *could* figure srcdir and host out, but we'd have to do work that
+# our caller has already done to figure them out and requiring these two
+# seems reasonable.
+# Note that `host' in this case is GCC's `target'.  Target libraries are
+# configured for a particular host.
+
+Makefile=${ac_file-Makefile}
+ml_config_shell=${CONFIG_SHELL-/bin/sh}
+ml_arguments="${ac_configure_args}"
+ml_realsrcdir=${srcdir}
+
+# Scan all the arguments and set all the ones we need.
+
+ml_verbose=--verbose
+for option in ${ml_arguments}
+do
+  case $option in
+  \'--*\' ) eval option="$option" ;;
+  --*) ;;
+  -*) option=-$option ;;
+  esac
+
+  case $option in
+  --*=*)
+	optarg=`echo $option | sed -e 's/^[^=]*=//'`
+	;;
+  esac
+
+  case $option in
+  --disable-*)
+	enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
+	eval $enableopt=no
+	;;
+  --enable-*)
+	case "$option" in
+	*=*)	;;
+	*)	optarg=yes ;;
+	esac
+	enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
+	eval $enableopt="$optarg"
+	;;
+  --norecursion | --no*)
+	ml_norecursion=yes
+	;;
+  --silent | --sil* | --quiet | --q*)
+	ml_verbose=--silent
+	;;
+  --verbose | --v | --verb*)
+	ml_verbose=--verbose
+	;;
+  --with-*)
+	case "$option" in
+	*=*)	;;
+	*)	optarg=yes ;;
+	esac
+	withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
+	eval $withopt="$optarg"
+	;;
+  --without-*)
+	withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
+	eval $withopt=no
+	;;
+  esac
+done
+
+# Only do this if --enable-multilib.
+if [ "${enable_multilib}" = yes ]; then
+
+# Compute whether this is the library's top level directory
+# (ie: not a multilib subdirectory, and not a subdirectory like newlib/src).
+# ${with_multisubdir} tells us we're in the right branch, but we could be
+# in a subdir of that.
+# ??? The previous version could void this test by separating the process into
+# two files: one that only the library's toplevel configure.in ran (to
+# configure the multilib subdirs), and another that all configure.in's ran to
+# update the Makefile.  It seemed reasonable to collapse all multilib support
+# into one file, but it does leave us with having to perform this test.
+ml_toplevel_p=no
+if [ -z "${with_multisubdir}" ]; then
+  if [ "${srcdir}" = "." ]; then
+    # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
+    # ${with_target_subdir} = "." for native, otherwise target alias.
+    if [ "${with_target_subdir}" = "." ]; then
+      if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
+	ml_toplevel_p=yes
+      fi
+    else
+      if [ -f ${ml_realsrcdir}/../../config-ml.in ]; then
+	ml_toplevel_p=yes
+      fi
+    fi
+  else
+    # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
+    if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
+      ml_toplevel_p=yes
+    fi
+  fi
+fi
+
+# If this is the library's top level directory, set multidirs to the
+# multilib subdirs to support.  This lives at the top because we need
+# `multidirs' set right away.
+
+if [ "${ml_toplevel_p}" = yes ]; then
+
+multidirs=
+for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
+  dir=`echo $i | sed -e 's/;.*$//'`
+  if [ "${dir}" = "." ]; then
+    true
+  else
+    if [ -z "${multidirs}" ]; then
+      multidirs="${dir}"
+    else
+      multidirs="${multidirs} ${dir}"
+    fi
+  fi
+done
+
+# Target libraries are configured for the host they run on, so we check
+# $host here, not $target.
+
+case "${host}" in
+arc-*-elf*)
+	if [ x$enable_biendian != xyes ]
+	then
+	  old_multidirs=${multidirs}
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "${x}" in
+	      *be*) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	;;
+arm-*-*)
+	if [ x"$enable_fpu" = xno ]
+	then
+	  old_multidirs=${multidirs}
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "${x}" in
+	      *fpu*) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x"$enable_26bit" = xno ]
+	then
+	  old_multidirs=${multidirs}
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "${x}" in
+	      *26bit*) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x"$enable_underscore" = xno ]
+	then
+	  old_multidirs=${multidirs}
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "${x}" in
+	      *under*) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x"$enable_interwork" = xno ]
+	then
+	  old_multidirs=${multidirs}
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "${x}" in
+	      *interwork*) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_biendian = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *le* ) : ;;
+	      *be* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x"$enable_nofmult" = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *nofmult* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	;;
+m68*-*-*)
+	if [ x$enable_softfloat = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *soft-float* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_m68881 = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *m68881* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_m68000 = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *m68000* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_m68020 = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *m68020* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	;;
+mips*-*-*)
+	if [ x$enable_single_float = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *single* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_biendian = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *el* ) : ;;
+	      *eb* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_softfloat = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *soft-float* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	case " $multidirs " in
+	*" mabi=64 "*)
+	  # We will not be able to create libraries with -mabi=64 if
+	  # we cannot even link a trivial program.  It usually
+	  # indicates the 64bit libraries are missing.
+	  if echo 'main() {}' > conftest.c &&
+	     ${CC-gcc} -mabi=64 conftest.c -o conftest; then
+	    :
+	  else
+	    echo Could not link program with -mabi=64, disabling it.
+	    old_multidirs="${multidirs}"
+	    multidirs=""
+	    for x in ${old_multidirs}; do
+	      case "$x" in
+	      *mabi=64* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	      esac
+	    done
+	  fi
+	  rm -f conftest.c conftest
+	  ;;
+	esac
+	;;
+powerpc*-*-* | rs6000*-*-*)
+	if [ x$enable_aix64 = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *ppc64* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_pthread = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *pthread* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_softfloat = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *soft-float* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_powercpu = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      power | */power | */power/* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_powerpccpu = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *powerpc* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_powerpcos = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *mcall-linux* | *mcall-solaris* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_biendian = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *mlittle* | *mbig* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	if [ x$enable_sysv = xno ]
+	then
+	  old_multidirs="${multidirs}"
+	  multidirs=""
+	  for x in ${old_multidirs}; do
+	    case "$x" in
+	      *mcall-sysv* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	    esac
+	  done
+	fi
+	;;
+sparc*-*-*)
+	case " $multidirs " in
+	*" m64 "*)
+	  # We will not be able to create libraries with -m64 if
+	  # we cannot even link a trivial program.  It usually
+	  # indicates the 64bit libraries are missing.
+	  if echo 'main() {}' > conftest.c &&
+	     ${CC-gcc} -m64 conftest.c -o conftest; then
+	    :
+	  else
+	    echo Could not link program with -m64, disabling it.
+	    old_multidirs="${multidirs}"
+	    multidirs=""
+	    for x in ${old_multidirs}; do
+	      case "$x" in
+	      *m64* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	      esac
+	    done
+	  fi
+	  rm -f conftest.c conftest
+	  ;;
+	esac
+	;;
+esac
+
+# Remove extraneous blanks from multidirs.
+# Tests like `if [ -n "$multidirs" ]' require it.
+multidirs=`echo "$multidirs" | sed -e 's/^[ ][ ]*//' -e 's/[ ][ ]*$//' -e 's/[ ][ ]*/ /g'`
+
+# Add code to library's top level makefile to handle building the multilib
+# subdirs.
+
+cat > Multi.tem <<\EOF
+
+PWD=$${PWDCMD-pwd}
+
+# FIXME: There should be an @-sign in front of the `if'.
+# Leave out until this is tested a bit more.
+multi-do:
+	if [ -z "$(MULTIDIRS)" ]; then \
+	  true; \
+	else \
+	  rootpre=`${PWD}`/; export rootpre; \
+	  srcrootpre=`cd $(srcdir); ${PWD}`/; export srcrootpre; \
+	  lib=`echo $${rootpre} | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
+	  compiler="$(CC)"; \
+	  for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
+	    dir=`echo $$i | sed -e 's/;.*$$//'`; \
+	    if [ "$${dir}" = "." ]; then \
+	      true; \
+	    else \
+	      if [ -d ../$${dir}/$${lib} ]; then \
+		flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
+		if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
+				CFLAGS="$(CFLAGS) $${flags}" \
+				prefix="$(prefix)" \
+				exec_prefix="$(exec_prefix)" \
+				GCJFLAGS="$(GCJFLAGS) $${flags}" \
+				CXXFLAGS="$(CXXFLAGS) $${flags}" \
+				LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
+				LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
+				LDFLAGS="$(LDFLAGS) $${flags}" \
+				DESTDIR="$(DESTDIR)" \
+				INSTALL="$(INSTALL)" \
+				INSTALL_DATA="$(INSTALL_DATA)" \
+				INSTALL_PROGRAM="$(INSTALL_PROGRAM)" \
+				INSTALL_SCRIPT="$(INSTALL_SCRIPT)" \
+				$(DO)); then \
+		  true; \
+		else \
+		  exit 1; \
+		fi; \
+	      else true; \
+	      fi; \
+	    fi; \
+	  done; \
+	fi
+
+# FIXME: There should be an @-sign in front of the `if'.
+# Leave out until this is tested a bit more.
+multi-clean:
+	if [ -z "$(MULTIDIRS)" ]; then \
+	  true; \
+	else \
+	  lib=`${PWD} | sed -e 's,^.*/\([^/][^/]*\)$$,\1,'`; \
+	  for dir in Makefile $(MULTIDIRS); do \
+	    if [ -f ../$${dir}/$${lib}/Makefile ]; then \
+	      if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
+	      then true; \
+	      else exit 1; \
+	      fi; \
+	    else true; \
+	    fi; \
+	  done; \
+	fi
+EOF
+
+cat ${Makefile} Multi.tem > Makefile.tem
+rm -f ${Makefile} Multi.tem
+mv Makefile.tem ${Makefile}
+
+fi # ${ml_toplevel_p} = yes
+
+if [ "${ml_verbose}" = --verbose ]; then
+  echo "Adding multilib support to Makefile in ${ml_realsrcdir}"
+  if [ "${ml_toplevel_p}" = yes ]; then
+    echo "multidirs=${multidirs}"
+  fi
+  echo "with_multisubdir=${with_multisubdir}"
+fi
+
+if [ "${srcdir}" = "." ]; then
+  if [ "${with_target_subdir}" != "." ]; then
+    ml_srcdotdot="../"
+  else
+    ml_srcdotdot=""
+  fi
+else
+  ml_srcdotdot=""
+fi
+
+if [ -z "${with_multisubdir}" ]; then
+  ml_subdir=
+  ml_builddotdot=
+  : # ml_srcdotdot= # already set
+else
+  ml_subdir="/${with_multisubdir}"
+  # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
+  ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
+  if [ "$srcdir" = "." ]; then
+    ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
+  else
+    : # ml_srcdotdot= # already set
+  fi
+fi
+
+if [ "${ml_toplevel_p}" = yes ]; then
+  ml_do='$(MAKE)'
+  ml_clean='$(MAKE)'
+else
+  ml_do=true
+  ml_clean=true
+fi
+
+# TOP is used by newlib and should not be used elsewhere for this purpose.
+# MULTI{SRC,BUILD}TOP are the proper ones to use.  MULTISRCTOP is empty
+# when srcdir != builddir.  MULTIBUILDTOP is always some number of ../'s.
+# FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
+# delete TOP.  Newlib may wish to continue to use TOP for its own purposes
+# of course.
+# MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
+# and lists the subdirectories to recurse into.
+# MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
+# (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
+# a leading '/'.
+# MULTIDO is used for targets like all, install, and check where
+# $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
+# MULTICLEAN is used for the *clean targets.
+#
+# ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
+# currently kept separate because we don't want the *clean targets to require
+# the existence of the compiler (which MULTIDO currently requires) and
+# therefore we'd have to record the directory options as well as names
+# (currently we just record the names and use --print-multi-lib to get the
+# options).
+
+sed -e "s:^TOP[ 	]*=[ 	]*\([./]*\)[ 	]*$:TOP = ${ml_builddotdot}\1:" \
+    -e "s:^MULTISRCTOP[ 	]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
+    -e "s:^MULTIBUILDTOP[ 	]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
+    -e "s:^MULTIDIRS[ 	]*=.*$:MULTIDIRS = ${multidirs}:" \
+    -e "s:^MULTISUBDIR[ 	]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
+    -e "s:^MULTIDO[ 	]*=.*$:MULTIDO = $ml_do:" \
+    -e "s:^MULTICLEAN[ 	]*=.*$:MULTICLEAN = $ml_clean:" \
+	${Makefile} > Makefile.tem
+rm -f ${Makefile}
+mv Makefile.tem ${Makefile}
+
+# If this is the library's top level, configure each multilib subdir.
+# This is done at the end because this is the loop that runs configure
+# in each multilib subdir and it seemed reasonable to finish updating the
+# Makefile before going on to configure the subdirs.
+
+if [ "${ml_toplevel_p}" = yes ]; then
+
+# We must freshly configure each subdirectory.  This bit of code is
+# actually partially stolen from the main configure script.  FIXME.
+
+if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
+
+  if [ "${ml_verbose}" = --verbose ]; then
+    echo "Running configure in multilib subdirs ${multidirs}"
+    echo "pwd: `${PWDCMD-pwd}`"
+  fi
+
+  ml_origdir=`${PWDCMD-pwd}`
+  ml_libdir=`echo $ml_origdir | sed -e 's,^.*/,,'`
+  # cd to top-level-build-dir/${with_target_subdir}
+  cd ..
+
+  for ml_dir in ${multidirs}; do
+
+    if [ "${ml_verbose}" = --verbose ]; then
+      echo "Running configure in multilib subdir ${ml_dir}"
+      echo "pwd: `${PWDCMD-pwd}`"
+    fi
+
+    if [ -d ${ml_dir} ]; then true; else
+      # ``mkdir -p ${ml_dir}'' See also mkinstalldirs.
+      pathcomp=""
+      for d in `echo ":${ml_dir}" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`; do
+        pathcomp="$pathcomp$d"
+        case "$pathcomp" in
+          -* ) pathcomp=./$pathcomp ;;
+        esac
+        if test ! -d "$pathcomp"; then
+           echo "mkdir $pathcomp" 1>&2
+           mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$?
+        fi
+        if test ! -d "$pathcomp"; then
+	   exit $lasterr
+        fi
+        pathcomp="$pathcomp/"
+      done
+    fi
+    if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
+
+    # Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
+    dotdot=../`echo ${ml_dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
+
+    case ${srcdir} in
+    ".")
+      echo Building symlink tree in `${PWDCMD-pwd}`/${ml_dir}/${ml_libdir}
+      if [ "${with_target_subdir}" != "." ]; then
+	ml_unsubdir="../"
+      else
+	ml_unsubdir=""
+      fi
+      (cd ${ml_dir}/${ml_libdir};
+       ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
+      if [ -f ${ml_dir}/${ml_libdir}/Makefile ]; then
+	if [ x"${MAKE}" = x ]; then
+	  (cd ${ml_dir}/${ml_libdir}; make distclean)
+	else
+	  (cd ${ml_dir}/${ml_libdir}; ${MAKE} distclean)
+	fi
+      fi
+      ml_newsrcdir="."
+      ml_srcdiroption=
+      multisrctop=${dotdot}
+      ;;
+    *)
+      case "${srcdir}" in
+      /* | [A-Za-z]:[\\/]* ) # absolute path
+        ml_newsrcdir=${srcdir}
+        ;;
+      *) # otherwise relative
+        ml_newsrcdir=${dotdot}${srcdir}
+        ;;
+      esac
+      ml_srcdiroption="-srcdir=${ml_newsrcdir}"
+      multisrctop=
+      ;;
+    esac
+
+    case "${progname}" in
+    /* | [A-Za-z]:[\\/]* )     ml_recprog=${progname} ;;
+    *)      ml_recprog=${dotdot}${progname} ;;
+    esac
+
+    # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
+    ML_POPDIR=`${PWDCMD-pwd}`
+    cd ${ml_dir}/${ml_libdir}
+
+    if [ -f ${ml_newsrcdir}/configure ]; then
+      ml_recprog="${ml_newsrcdir}/configure --cache-file=../config.cache"
+    fi
+
+    # find compiler flag corresponding to ${ml_dir}
+    for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do 
+      dir=`echo $i | sed -e 's/;.*$//'`
+      if [ "${dir}" = "${ml_dir}" ]; then
+        flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`
+        break
+      fi
+    done
+    ml_config_env='CC="${CC_}$flags" CXX="${CXX_}$flags" GCJ="${GCJ_}$flags"'
+
+    if [ "${with_target_subdir}" = "." ]; then
+	CC_=$CC' '
+	CXX_=$CXX' '
+	GCJ_=$GCJ' '
+    else
+	# Create a regular expression that matches any string as long
+	# as ML_POPDIR.
+	popdir_rx=`echo ${ML_POPDIR} | sed 's,.,.,g'`
+	CC_=
+	for arg in ${CC}; do
+	  case $arg in
+	  -[BIL]"${ML_POPDIR}"/*)
+	    CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\1/p"`' ' ;;
+	  "${ML_POPDIR}"/*)
+	    CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
+	  *)
+	    CC_="${CC_}${arg} " ;;
+	  esac
+	done
+
+	CXX_=
+	for arg in ${CXX}; do
+	  case $arg in
+	  -[BIL]"${ML_POPDIR}"/*)
+	    CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
+	  "${ML_POPDIR}"/*)
+	    CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
+	  *)
+	    CXX_="${CXX_}${arg} " ;;
+	  esac
+	done
+
+	GCJ_=
+	for arg in ${GCJ}; do
+	  case $arg in
+	  -[BIL]"${ML_POPDIR}"/*)
+	    GCJ_="${GCJ_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
+	  "${ML_POPDIR}"/*)
+	    GCJ_="${GCJ_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
+	  *)
+	    GCJ_="${GCJ_}${arg} " ;;
+	  esac
+	done
+
+	if test "x${LD_LIBRARY_PATH+set}" = xset; then
+	  LD_LIBRARY_PATH_=
+	  for arg in `echo "$LD_LIBRARY_PATH" | tr ':' ' '`; do
+	    case "$arg" in
+	    "${ML_POPDIR}"/*)
+	      arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
+	      ;;
+	    esac
+	    if test "x$LD_LIBRARY_PATH_" != x; then
+	      LD_LIBRARY_PATH_=$LD_LIBRARY_PATH_:$arg
+	    else
+	      LD_LIBRARY_PATH_=$arg
+	    fi
+          done
+	  ml_config_env="$ml_config_env LD_LIBRARY_PATH=$LD_LIBRARY_PATH_"
+	fi
+
+	if test "x${SHLIB_PATH+set}" = xset; then
+	  SHLIB_PATH_=
+	  for arg in `echo "$SHLIB_PATH" | tr ':' ' '`; do
+	    case "$arg" in
+	    "${ML_POPDIR}"/*)
+	      arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
+	      ;;
+	    esac
+	    if test "x$SHLIB_PATH_" != x; then
+	      SHLIB_PATH_=$SHLIB_PATH_:$arg
+	    else
+	      SHLIB_PATH_=$arg
+	    fi
+          done
+	  ml_config_env="$ml_config_env SHLIB_PATH=$SHLIB_PATH_"
+	fi
+    fi
+
+    if eval ${ml_config_env} ${ml_config_shell} ${ml_recprog} \
+	--with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
+	${ml_arguments} ${ml_srcdiroption} ; then
+      true
+    else
+      exit 1
+    fi
+
+    cd ${ML_POPDIR}
+
+  done
+
+  cd ${ml_origdir}
+fi
+
+fi # ${ml_toplevel_p} = yes
+fi # ${enable_multilib} = yes
diff --git a/lib/symlink-tree b/lib/symlink-tree
new file mode 100755
index 000000000..5b18cab92
--- /dev/null
+++ b/lib/symlink-tree
@@ -0,0 +1,53 @@
+#!/bin/sh
+# Create a symlink tree.
+#
+# Syntax: symlink-tree srcdir "ignore1 ignore2 ..."
+#
+# where srcdir is the directory to create a symlink tree to,
+# and "ignoreN" is a list of files/directories to ignore.
+
+prog=$0
+srcdir=$1
+ignore="$2"
+
+if test $# -lt 1; then
+  echo "symlink-tree error:  Usage: symlink-tree srcdir \"ignore1 ignore2 ...\""
+  exit 1
+fi
+
+ignore_additional=". .. CVS"
+
+# If we were invoked with a relative path name, adjust ${prog} to work
+# in subdirs.
+case ${prog} in
+/* | [A-Za-z]:[\\/]*) ;;
+*) prog=../${prog} ;;
+esac
+
+# Set newsrcdir to something subdirectories can use.
+case ${srcdir} in
+/* | [A-Za-z]:[\\/]*) newsrcdir=${srcdir} ;;
+*) newsrcdir=../${srcdir} ;;
+esac
+
+for f in `ls -a ${srcdir}`; do
+  if [ -d ${srcdir}/$f ]; then
+    found=
+    for i in ${ignore} ${ignore_additional}; do
+      if [ "$f" = "$i" ]; then
+	found=yes
+      fi
+    done
+    if [ -z "${found}" ]; then
+      echo "$f		..working in"
+      if [ -d $f ]; then true; else mkdir $f; fi
+      (cd $f; ${prog} ${newsrcdir}/$f "${ignore}")
+    fi
+  else
+    echo "$f		..linked"
+    rm -f $f
+    ln -s ${srcdir}/$f .
+  fi
+done
+
+exit 0
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 0ac9689a2..d36edcca7 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -293,6 +293,7 @@ mdate3.test \
 mdate4.test \
 mkinst2.test \
 mkinstall.test \
+multlib.test \
 nobase.test \
 nodef.test \
 nodef2.test \
diff --git a/tests/Makefile.in b/tests/Makefile.in
index d1225432f..dcdfd75dd 100644
--- a/tests/Makefile.in
+++ b/tests/Makefile.in
@@ -392,6 +392,7 @@ mdate3.test \
 mdate4.test \
 mkinst2.test \
 mkinstall.test \
+multlib.test \
 nobase.test \
 nodef.test \
 nodef2.test \
@@ -736,7 +737,7 @@ mostlyclean-generic:
 clean-generic:
 
 distclean-generic:
-	-rm -f Makefile $(CONFIG_CLEAN_FILES)
+	-rm -f $(CONFIG_CLEAN_FILES)
 
 maintainer-clean-generic:
 	@echo "This command is intended for maintainers to use"
@@ -746,6 +747,7 @@ clean: clean-am
 clean-am: clean-generic mostlyclean-am
 
 distclean: distclean-am
+	-rm -f Makefile
 
 distclean-am: clean-am distclean-generic distclean-local
 
@@ -768,6 +770,7 @@ install-man:
 installcheck-am:
 
 maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
 
 maintainer-clean-am: distclean-am maintainer-clean-generic
 
diff --git a/tests/multlib.test b/tests/multlib.test
new file mode 100755
index 000000000..61c4f0a45
--- /dev/null
+++ b/tests/multlib.test
@@ -0,0 +1,139 @@
+#! /bin/sh
+# Copyright (C) 2003  Free Software Foundation, Inc.
+#
+# This file is part of GNU Automake.
+#
+# GNU Automake 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.
+#
+# GNU Automake 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 Automake; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+# Check multilib support.
+# Based on a test case from Ralf Corsepius.
+
+required='gcc GNUmake'
+. ./defs || exit 1
+
+set -e
+
+cat >>configure.in <<'END'
+AC_CONFIG_SRCDIR(libfoo/foo.c)
+AC_CONFIG_AUX_DIR(.)
+AC_CONFIG_SUBDIRS(libfoo)
+AC_CONFIG_SUBDIRS(libbar)
+AC_OUTPUT
+END
+
+cat >mycc <<'END'
+#! /bin/sh
+case ${1+"$@"} in
+ *-print-multi-lib*)
+  echo ".;"
+  echo "debug;@g"
+  exit 0 ;;
+esac
+gcc ${1+"$@"}
+END
+
+chmod +x mycc
+
+cat >Makefile.am <<'EOF'
+SUBDIRS = @subdirs@
+EXTRA_DIST = config-ml.in symlink-tree
+EOF
+
+# libfoo tests multilib supports when there are no subdirectories
+# libbar tests multilib supports when there are subdirectories
+
+mkdir libfoo
+
+cat >libfoo/configure.in <<'END'
+AC_PREREQ(2.57)
+AC_INIT(libfoo, 0.1, nobody@localhost)
+AC_CONFIG_SRCDIR(foo.c)
+# Apparently it doesn't work to have auxdir=.. when
+# multilib uses symlinked trees.
+AC_CONFIG_AUX_DIR(.)
+AM_INIT_AUTOMAKE(foreign)
+AC_PROG_CC
+AC_PROG_RANLIB
+AM_ENABLE_MULTILIB(Makefile,[..])
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
+END
+
+cat >libfoo/Makefile.am <<'END'
+noinst_LIBRARIES = libfoo.a
+libfoo_a_SOURCES = foo.c
+END
+
+: > libfoo/foo.c
+
+mkdir libbar
+
+cat >libbar/configure.in <<'END'
+AC_PREREQ(2.57)
+AC_INIT(libbar, 0.1, nobody@localhost)
+# Apparently it doesn't work to have auxdir=.. when
+# multilib uses symlinked trees.
+AC_CONFIG_AUX_DIR(.)
+AM_INIT_AUTOMAKE(foreign)
+AC_PROG_CC
+AC_PROG_RANLIB
+AM_ENABLE_MULTILIB(Makefile,[..])
+AC_CONFIG_FILES([Makefile sub/Makefile])
+AC_OUTPUT
+END
+
+cat >libbar/Makefile.am <<'END'
+SUBDIRS = sub
+noinst_LIBRARIES = libbar.a
+libbar_a_SOURCES = bar.c
+END
+
+mkdir libbar/sub
+
+: >libbar/sub/Makefile.am
+
+: > libbar/bar.c
+
+cp $testsrcdir/../lib/config-ml.in .
+cp $testsrcdir/../lib/symlink-tree .
+
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE --add-missing
+cd libfoo
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE --add-missing
+cd ../libbar
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE --add-missing
+cd ..
+
+
+# Check VPATH builds
+mkdir build
+cd build
+../configure --enable-multilib CC=`pwd`/../mycc
+$MAKE
+$MAKE install
+$MAKE distcleancheck
+
+# Check standard builds.
+cd ..
+# Why to I have to specify --with-target-subdir?
+./configure --enable-multilib --with-target-subdir=. CC=`pwd`/mycc
+$MAKE