merge revision(s) r44459,r44470: [Backport ruby#8315]

	* lib/mkmf.rb (configuration): Make CXXFLAGS customizable.
	  Patch by Kohei Suzuki (eagletmt). [Fixes rubyGH-492]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@47592 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Author: nagachika

ChangeLog

@@ -1,3 +1,8 @@
+Mon Sep 15 11:08:23 2014  Shota Fukumori  <her@sorah.jp>
+
+	* lib/mkmf.rb (configuration): Make CXXFLAGS customizable.
+	  Patch by Kohei Suzuki (eagletmt). [Fixes GH-492]
+
 Mon Sep 15 01:06:35 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* lib/mkmf.rb (MakeMakefile#pkg_config): append --cflags to also

lib/mkmf.rb

@@ -1906,7 +1906,7 @@ def configuration(srcdir)
 INCFLAGS = -I. #$INCFLAGS
 DEFS     = #{CONFIG['DEFS']}
 CPPFLAGS = #{extconf_h}#{$CPPFLAGS}
-CXXFLAGS = $(CCDLFLAGS) #{CONFIG['CXXFLAGS']} $(ARCH_FLAG)
+CXXFLAGS = $(CCDLFLAGS) #$CXXFLAGS $(ARCH_FLAG)
 ldflags  = #{$LDFLAGS}
 dldflags = #{$DLDFLAGS} #{CONFIG['EXTDLDFLAGS']}
 ARCH_FLAG = #{$ARCH_FLAG}
@@ -2399,6 +2399,7 @@ def init_mkmf(config = CONFIG, rbconfig = RbConfig::CONFIG)
       $warnflags = config['warnflags'] unless $extmk
     end
     $CFLAGS = with_config("cflags", arg_config("CFLAGS", config["CFLAGS"])).dup
+    $CXXFLAGS = (with_config("cxxflags", arg_config("CXXFLAGS", config["CXXFLAGS"]))||'').dup
     $ARCH_FLAG = with_config("arch_flag", arg_config("ARCH_FLAG", config["ARCH_FLAG"])).dup
     $CPPFLAGS = with_config("cppflags", arg_config("CPPFLAGS", config["CPPFLAGS"])).dup
     $LDFLAGS = with_config("ldflags", arg_config("LDFLAGS", config["LDFLAGS"])).dup

version.h

@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.1.2"
 #define RUBY_RELEASE_DATE "2014-09-15"
-#define RUBY_PATCHLEVEL 237
+#define RUBY_PATCHLEVEL 238
 
 #define RUBY_RELEASE_YEAR 2014
 #define RUBY_RELEASE_MONTH 9