From 543820885ee691d70e0d5c36246bdfdf8a1eddd3 Mon Sep 17 00:00:00 2001
From: kosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 27 Nov 2011 12:27:00 +0000
Subject: * configure.in: added -fno-strict-overflow. it suppress annoying  
 -Wstrict-overflow warning.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33872 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog    | 5 +++++
 configure.in | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 95723fc20d..1f3fb53ffb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sun Nov 27 21:25:33 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* configure.in: added -fno-strict-overflow. it suppress annoying
+	  -Wstrict-overflow warning.
+
 Sun Nov 27 20:58:02 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
 	* io.c (rb_write_error2): get rid of warning on linux. fwrite
diff --git a/configure.in b/configure.in
index a57cec93a1..b17c280735 100644
--- a/configure.in
+++ b/configure.in
@@ -496,7 +496,10 @@ if test "$GCC:${warnflags+set}:no" = yes::no; then
     warnflags=
 fi
 if test "$GCC" = yes; then
+    # -D_FORTIFY_SOURCE
     RUBY_TRY_CFLAGS(-D_FORTIFY_SOURCE=2, [RUBY_APPEND_OPTION(XCFLAGS, -D_FORTIFY_SOURCE=2)])
+
+    # -fstack-protector
     AS_CASE(["$target_os"],
     [mingw*], [
 	stack_protector=no
@@ -508,6 +511,9 @@ if test "$GCC" = yes; then
 	RUBY_APPEND_OPTION(XCFLAGS, -fstack-protector)
 	RUBY_APPEND_OPTION(XLDFLAGS, -fstack-protector)
     fi
+
+    # suppress annoying -Wstrict-overflow warnings
+    RUBY_TRY_CFLAGS(-fno-strict-overflow, [RUBY_APPEND_OPTION(XCFLAGS, -fno-strict-overflow)])
 fi
 
 if test "$GCC" = ""; then
-- 
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