merge revision(s) 41648: [Backport ruby#8115]

	* lib/mkmf.rb: should use expanded values for header directories
	  unless extmk.  patch by vo.x (Vit Ondruch) at [ruby-core:55653]
	  [Bug ruby#8115], rhbz#921650.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@41658 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Author: nagachika

ChangeLog

@@ -1,3 +1,9 @@
+Wed Jun 26 22:42:36 2013  Nobuyoshi Nakada  <[email protected]>
+
+	* lib/mkmf.rb: should use expanded values for header directories
+	  unless extmk.  patch by vo.x (Vit Ondruch) at [ruby-core:55653]
+	  [Bug #8115], rhbz#921650.
+
 Wed Jun 26 02:25:52 2013  Akinori MUSHA  <[email protected]>
 
 	* lib/rubygems/ext/builder.rb (Gem::Ext::Builder.make): Pass

lib/mkmf.rb

@@ -225,11 +225,10 @@ def map_dir(dir, map = nil)
     path = dir
   end
   $extmk ||= false
-  if not $extmk and File.exist?(RbConfig::CONFIG["rubyhdrdir"] + "/ruby/ruby.h")
-    $hdrdir = CONFIG["rubyhdrdir"]
+  if not $extmk and File.exist?(($hdrdir = RbConfig::CONFIG["rubyhdrdir"]) + "/ruby/ruby.h")
     $topdir = $hdrdir
     $top_srcdir = $hdrdir
-    $arch_hdrdir = CONFIG["rubyarchhdrdir"]
+    $arch_hdrdir = RbConfig::CONFIG["rubyarchhdrdir"]
   elsif File.exist?(($hdrdir = ($top_srcdir ||= topdir) + "/include")  + "/ruby.h")
     $topdir ||= RbConfig::CONFIG["topdir"]
     $arch_hdrdir = "$(extout)/include/$(arch)"

version.h

@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.0.0"
 #define RUBY_RELEASE_DATE "2013-06-26"
-#define RUBY_PATCHLEVEL 242
+#define RUBY_PATCHLEVEL 243
 
 #define RUBY_RELEASE_YEAR 2013
 #define RUBY_RELEASE_MONTH 6