kosaki	2011-07-24 00:18:32 +0900 (Sun, 24 Jul 2011)

  New Revision: 32647

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=32647

  Log:
    * configure.in: changed default optflags to -O0 if the compiler is
      llvm-gcc. It prevent ruby crash on OS X 10.7 (Lion).

  Modified files:
    trunk/ChangeLog
    trunk/configure.in

Index: configure.in
===================================================================
--- configure.in	(revision 32646)
+++ configure.in	(revision 32647)
@@ -277,7 +277,13 @@
 AC_SUBST(GCC)
 if test "$GCC" = yes; then
     linker_flag=-Wl,
-    : ${optflags=-O3}
+    if test "$CC -v 2>&1 | grep LLVM" ; then
+	# llvm-gcc's optimization strategy is far different from gcc.
+	# It makes confusing our gcc specific optimized code.
+	: ${optflags=-O0}
+    else
+	: ${optflags=-O3}
+    fi
     AS_CASE(["$target_os"], [linux*|darwin*], [: ${debugflags=-ggdb}])
     RUBY_APPEND_OPTIONS(XCFLAGS, ["-include ruby/config.h" "-include ruby/missing.h"])
 else
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 32646)
+++ ChangeLog	(revision 32647)
@@ -1,3 +1,8 @@
+Sun Jul 24 00:16:13 2011  KOSAKI Motohiro  <kosaki.motohiro@g...>
+
+	* configure.in: changed default optflags to -O0 if the compiler is
+	  llvm-gcc. It prevent ruby crash on OS X 10.7 (Lion).
+
 Sun Jul 24 00:05:00 2011  Jeremy Evans  <merch-redmine@j...>
 
 	* error.c (rb_name_error_str): new function to raise NameError

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