From a6b625c538e23a09334a276d551aba1921b135a1 Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 31 Mar 2013 19:18:41 +0000
Subject: [PATCH] * configure.in: kick old clang. [ruby-dev:47204] [Bug #8192]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40025 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog    | 4 ++++
 configure.in | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index e0736b51c0..7318e89807 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Apr  1 04:16:41 2013  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: kick old clang. [ruby-dev:47204] [Bug #8192]
+
 Mon Apr  1 01:12:46 2013  Tanaka Akira  <akr@fsij.org>
 
 	* include/ruby/ruby.h (FIX2ULONG): Make it consistent with NUM2ULONG.
diff --git a/configure.in b/configure.in
index 1d3f328ee8..387d82cc04 100644
--- a/configure.in
+++ b/configure.in
@@ -392,6 +392,13 @@ RUBY_NACL
 AS_CASE(["$host_os:$build_os"],
 [darwin*:darwin*], [
     AC_CHECK_TOOLS(CC, [gcc-4.2 clang gcc cc])
+    # Following Apple deployed clang are broken
+    # clang version 1.0 (http://llvm.org/svn/llvm-project/cfe/tags/Apple/clang-23 exported)
+    # Apple clang version 2.0 (tags/Apple/clang-137) (based on LLVM 2.9svn)
+    # Apple clang version 2.1 (tags/Apple/clang-163.7.1) (based on LLVM 3.0svn)
+    if [ $CC = "clang" ] && $CC --version | grep 'clang version [12 ]\.' ; then
+        AC_MSG_ERROR(clang version 3.0 or later is required)])
+    fi
 ])
 if test x"${build}" != x"${host}"; then
   AC_CHECK_TOOL(CC, gcc)