From 6665ce3784df4f1bf692785c0f79de6eaa7d6dc2 Mon Sep 17 00:00:00 2001
From: bje <bje@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 30 Nov 2009 10:19:20 +0000
Subject: 	* mark_rts.c (GC_approx_sp): Use __builtin_frame_address when 
 compiling with GCC rather than taking the address of a local 	variable.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@154771 138bc75d-0d04-0410-961f-82ee72b054a4
---
 boehm-gc/mark_rts.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'boehm-gc/mark_rts.c')

diff --git a/boehm-gc/mark_rts.c b/boehm-gc/mark_rts.c
index 4074879a71a..7a9fb8f2b72 100644
--- a/boehm-gc/mark_rts.c
+++ b/boehm-gc/mark_rts.c
@@ -376,7 +376,13 @@ ptr_t GC_approx_sp()
 #   ifdef _MSC_VER
 #     pragma warning(disable:4172)
 #   endif
-    return((ptr_t)(&dummy));
+#ifdef __GNUC__
+    /* Eliminate a warning from GCC about taking the address of a
+       local variable.  */
+    return __builtin_frame_address (0);
+#else
+    return ((ptr_t)(&dummy));
+#endif /* __GNUC__ */
 #   ifdef _MSC_VER
 #     pragma warning(default:4172)
 #   endif
-- 
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