From 14bf66f25210248334f4730784ad00c18b7d651e Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 2 Aug 2012 04:24:13 +0000
Subject: [PATCH] * configure.in (AC_PROG_CC): AC_PROG_CC tries clang at first
 on   darwin. [Bug #6816]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36594 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog    | 5 +++++
 configure.in | 4 +++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 9c7c6075a7..97e7176f1c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Aug  2 13:23:08 2012  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (AC_PROG_CC): AC_PROG_CC tries clang at first on
+	  darwin. [Bug #6816]
+
 Thu Aug  2 11:39:25 2012  Narihiro Nakamura  <authornari@gmail.com>
 
 	* gc.c: return true or false. Patch by Dirkjan Bussink. [Bug #6821]
diff --git a/configure.in b/configure.in
index 27aed2f2ab..fad36e09d9 100644
--- a/configure.in
+++ b/configure.in
@@ -373,7 +373,9 @@ if test x"${build}" != x"${host}"; then
   AC_CHECK_TOOL(CC, gcc)
 fi
 RUBY_MINGW32
-AC_PROG_CC
+AS_CASE(["$build_os"],
+[darwin*], [ AC_PROG_CC(clang gcc cc) ],
+           [ AC_PROG_CC ])
 AC_PROG_CXX
 AC_PROG_GCC_TRADITIONAL
 AC_SUBST(GCC)