merge revision(s) 44474,44538,44539,44890,44896: [Backport ruby#9495]

	* configure.in: use SSE2 instructions for drop unexpected
	  precisions.  [ruby-core:54738] [Bug ruby#8358]

	* configure.in: use SSE2 instructions to drop unexpected precisions on
	  other than mingw.  [ruby-core:59472] [Bug ruby#8358]

	* configure.in: -mstackrealign is necessary for -msse2 working.
	  [ruby-core:54716] [Bug ruby#8349]

	* configure.in: -mstackrealign is necessary for -msse2 working.
	  [ruby-core:54716] [Bug ruby#8349]

	* configure.in: add qouting brackets and append wildcard for the
	  rest after target_cpu, to properly detect platform for SSE2
	  instructions.  [ruby-core:60576] [Bug ruby#8358]

	* configure.in: Fix compilation error.
	  https://bugs.ruby-lang.org/issues/8358#note-16


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@44993 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Author: nurse

ChangeLog

@@ -1,3 +1,32 @@
+Sun Feb 16 07:13:36 2014  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Fix compilation error.
+	  https://bugs.ruby-lang.org/issues/8358#note-16
+
+Sun Feb 16 07:13:36 2014  Vit Ondruch  <vondruch@redhat.com>
+
+	* configure.in: add qouting brackets and append wildcard for the
+	  rest after target_cpu, to properly detect platform for SSE2
+	  instructions.  [ruby-core:60576] [Bug #8358]
+
+Sun Feb 16 07:13:36 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: -mstackrealign is necessary for -msse2 working.
+	  [ruby-core:54716] [Bug #8349]
+
+Sun Feb 16 07:13:36 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: -mstackrealign is necessary for -msse2 working.
+	  [ruby-core:54716] [Bug #8349]
+
+	* configure.in: use SSE2 instructions to drop unexpected precisions on
+	  other than mingw.  [ruby-core:59472] [Bug #8358]
+
+Sun Feb 16 07:13:36 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in: use SSE2 instructions for drop unexpected
+	  precisions.  [ruby-core:54738] [Bug #8358]
+
 Fri Feb  7 04:19:19 2014  Koichi Sasada  <ko1@atdot.net>
 
 	* gc.c (get_envparam_int): correct warning messsages.

configure.in

@@ -856,6 +856,22 @@ if test "$GCC" = yes; then
     for oflag in -fno-fast-math; do
 	RUBY_TRY_CFLAGS($oflag, [RUBY_APPEND_OPTION(optflags, $oflag)])
     done
+    AS_CASE(["$target"],
+	[*-darwin*], [
+	    # doesn't seem necessary on Mac OS X
+	],
+	[[i[4-6]86*]], [
+	    RUBY_TRY_CFLAGS(-msse2 -mfpmath=sse, [
+		RUBY_APPEND_OPTION(XCFLAGS, -msse2 -mfpmath=sse)
+	    ])
+            AS_CASE(["$XCFLAGS"],
+                [[*-msse2*]], [
+                    RUBY_TRY_CFLAGS(-mstackrealign, [
+                        RUBY_APPEND_OPTION(XCFLAGS, -mstackrealign)
+                    ])
+                ])
+	]
+    )
 fi
 
 AC_ARG_WITH(opt-dir,

version.h

@@ -1,10 +1,10 @@
 #define RUBY_VERSION "2.1.1"
-#define RUBY_RELEASE_DATE "2014-02-10"
-#define RUBY_PATCHLEVEL 30
+#define RUBY_RELEASE_DATE "2014-02-16"
+#define RUBY_PATCHLEVEL 31
 
 #define RUBY_RELEASE_YEAR 2014
 #define RUBY_RELEASE_MONTH 2
-#define RUBY_RELEASE_DAY 10
+#define RUBY_RELEASE_DAY 16
 
 #include "ruby/version.h"