From cdb42bd4c958ef1bd1e917701afa7666ddcad512 Mon Sep 17 00:00:00 2001
From: David Kastrup <dak@gnu.org>
Date: Sat, 5 May 2012 10:05:35 +0200
Subject: [PATCH] Issue 2514: gcc 4.6.3 does not need
 -fno-optimize-sibling-calls any more

This restricts the fix for issue 1997 to versions 4.6.0 to 4.6.2, since
the bug has been fixed in 4.6.3 and 4.7.0.
---
 stepmake/aclocal.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stepmake/aclocal.m4 b/stepmake/aclocal.m4
index 42c65a58cd..b42851e57d 100644
--- a/stepmake/aclocal.m4
+++ b/stepmake/aclocal.m4
@@ -289,7 +289,7 @@ AC_DEFUN(STEPMAKE_CXXTEMPLATE, [
 AC_DEFUN(STEPMAKE_GXXCODEGENBUG, [
     AC_MSG_CHECKING([options for known g++ bugs])
     case "$GXX:$CXX_VERSION" in
-	yes:400600?)
+	yes:400600[[0-2]])
 	    AC_MSG_RESULT([-fno-optimize-sibling-calls (tail call bug)])
 	    CXXFLAGS="$CXXFLAGS -fno-optimize-sibling-calls"
 	    ;;
-- 
2.39.2