Makefile.in (FLAGS_TO_PASS): Pass libsubdir as well.

2017-10-31  Olivier Hainque  <hainque@adacore.com>

        * gcc/Makefile.in (FLAGS_TO_PASS): Pass libsubdir as well.

From-SVN: r254251

gcc/ChangeLog

+2017-10-31  Olivier Hainque  <hainque@adacore.com>
+
+        * gcc/Makefile.in (FLAGS_TO_PASS): Pass libsubdir as well.
+
 2017-11-01  Julia Koval  <julia.koval@intel.com>
 
 	* config.gcc: Add gfniintrin.h.

gcc/Makefile.in

@@ -1161,6 +1161,7 @@ FLAGS_TO_PASS = \
 	"libexecsubdir=$(libexecsubdir)" \
 	"datarootdir=$(datarootdir)" \
 	"datadir=$(datadir)" \
+	"libsubdir=$(libsubdir)" \
 	"localedir=$(localedir)"
 #
 # Lists of files for various purposes.