From 2b64b5511a0d0814eb3938cff986edf493a7b362 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Fri, 11 Oct 2013 21:56:16 +0000
Subject: gold/ 	* configure.ac (MERGE_CONSTANTS_FLAG): New check. 	*
 configure: Regenerate. 	* Makefile.in: Regenerate. 	*
 testsuite/merge_string_literals_1.c: Renamed to have .cc suffix. 	*
 testsuite/merge_string_literals_2.c: Likewise. 	*
 testsuite/Makefile.am 	(merge_string_literals_1.o,
 merge_string_literals_2.o): Update deps. 	(AM_CFLAGS, AM_CXXFLAGS): Use
 $(MERGE_CONSTANTS_FLAG) in place of 	literal -fmerge-constants. 	*
 testsuite/Makefile.in: Regenerate.

---
 gold/configure | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'gold/configure')

diff --git a/gold/configure b/gold/configure
index cb56b65..e30fd75 100755
--- a/gold/configure
+++ b/gold/configure
@@ -622,6 +622,7 @@ STATIC_TLS_FALSE
 STATIC_TLS_TRUE
 TLS_FALSE
 TLS_TRUE
+MERGE_CONSTANTS_FLAG
 MCMODEL_MEDIUM_FALSE
 MCMODEL_MEDIUM_TRUE
 FN_PTRS_IN_SO_WITHOUT_PIC_FALSE
@@ -6339,6 +6340,35 @@ else
 fi
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -fmerge-constants" >&5
+$as_echo_n "checking whether $CC supports -fmerge-constants... " >&6; }
+if test "${gold_cv_merge_constants+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+
+save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -fmerge-constants"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+const char *s = "foo";
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  have_merge_constants=yes
+else
+  have_merge_constants=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$save_CFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gold_cv_merge_constants" >&5
+$as_echo "$gold_cv_merge_constants" >&6; }
+
+if test "$gold_cv_merge_constants" = yes; then :
+  MERGE_CONSTANTS_FLAG=-fmerge-constants
+else
+  MERGE_CONSTANTS_FLAG=
+fi
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for thread support" >&5
 $as_echo_n "checking for thread support... " >&6; }
 if test "${gold_cv_c_thread+set}" = set; then :
-- 
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