From a8bf95d0249565f4210ccab5c13232d501ce0c2d Mon Sep 17 00:00:00 2001
From: Till Straumann <strauman@slac.stanford.edu>
Date: Wed, 22 Apr 2009 22:06:58 +0000
Subject:  - importing updated version from SLAC as of 20090422

---
 m4/rtems-multilib.m4 | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 m4/rtems-multilib.m4

(limited to 'm4/rtems-multilib.m4')

diff --git a/m4/rtems-multilib.m4 b/m4/rtems-multilib.m4
new file mode 100644
index 0000000..25be9d4
--- /dev/null
+++ b/m4/rtems-multilib.m4
@@ -0,0 +1,28 @@
+#
+# Prepare for a multilibbed build
+#  - check for presence of 'config-ml.in'
+#  - expand AM_ENABLE_MULTILIB(MAKEFILE, REL-TO-TOP-SRCDIR)
+#  - expand TILLAM_MULTISUB_INSTALLDIR (workaround so that
+#    multilibs are installed into proper subdir.
+#  - make sure  'enable_multilib' is set to 'no' if it was initially
+#    unset; yet another little workaround...
+#
+# TILLAC_RTEMS_MULTILIB([MAKEFILE], [REL-TO-TOP-SRCDIR])
+AC_DEFUN([TILLAC_RTEMS_MULTILIB],
+	[if test -f ${srcdir}/config-ml.in || test -f $(srcdir)/../config-ml.in ; then
+		AM_ENABLE_MULTILIB([$1],[$2])
+		# install multilibs into MULTISUBDIR
+		TILLAM_MULTISUB_INSTALLDIR
+dnl		AC_SUBST(libdir,[${libdir}'$(MULTISUBDIR)'])
+		# in order to properly build multilibs in sub-libraries it seems we
+		# must pass the --enable-multilibs arg to sub-configures or multilibs
+		# are not built there.
+		# To work around, we simply set the default to 'no' so the user must
+		# say --enable-multilib to get them.
+		if test ! "${enable_multilib+set}" = "set" ; then
+		    multilib=no
+		fi
+	else
+		enable_multilib=no
+	fi]dnl
+)
-- 
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