re PR ada/68564 (Ada fails to bootstrap on sparc64-linux-gnu)

2015-11-28  Matthias Klose  <doko@ubuntu.com>

        PR ada/68564
        * gcc-interface/Makefile.in: Fix sparc/sparc64 bitness detection.

From-SVN: r231028

gcc/ada/ChangeLog

+2015-11-28  Matthias Klose  <doko@ubuntu.com>
+
+	PR ada/68564
+	* gcc-interface/Makefile.in: Fix sparc/sparc64 bitness detection.
+
 2015-11-25  Arnaud Charlet  <charlet@adacore.com>
 
 	* lib-xref-spark_specific.adb

gcc/ada/gcc-interface/Makefile.in

@@ -2092,7 +2092,7 @@ ifeq ($(strip $(filter-out sparc% linux%,$(target_cpu) $(target_os))),)
   LIBGNAT_TARGET_PAIRS_64 = \
   system.ads<system-linux-sparcv9.ads
 
-  ifeq ($(strip $(shell $(GCC_FOR_TARGET) $(GNATLIBCFLAGS) -print-multi-os-directory)),../lib64)
+  ifneq (,$(or $(filter sparc64-linux-gnu, $(shell $(GCC_FOR_TARGET) $(GNATLIBCFLAGS) -print-multiarch)), $(filter ../lib64, $(shell $(GCC_FOR_TARGET) $(GNATLIBCFLAGS) -print-multi-os-directory))))
     LIBGNAT_TARGET_PAIRS = \
     $(LIBGNAT_TARGET_PAIRS_COMMON) $(LIBGNAT_TARGET_PAIRS_64)
   else