nobu	2013-03-03 13:15:02 +0900 (Sun, 03 Mar 2013)

  New Revision: 39574

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=39574

  Log:
    mkmf.rb: libpath_env
    
    * lib/mkmf.rb (MakeMakefile#libpath_env): ignore empty LIBPATHENV.

  Modified files:
    trunk/lib/mkmf.rb

Index: lib/mkmf.rb
===================================================================
--- lib/mkmf.rb	(revision 39573)
+++ lib/mkmf.rb	(revision 39574)
@@ -351,7 +351,8 @@ module MakeMakefile https://github.com/ruby/ruby/blob/trunk/lib/mkmf.rb#L351
   end
 
   def libpath_env
-    if libpathenv = CONFIG["LIBPATHENV"]
+    # used only if native compiling
+    if libpathenv = config_string("LIBPATHENV")
       pathenv = ENV[libpathenv]
       libpath = RbConfig.expand($DEFLIBPATH.join(File::PATH_SEPARATOR))
       {libpathenv => [libpath, pathenv].compact.join(File::PATH_SEPARATOR)}

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