nobu	2012-05-09 16:36:03 +0900 (Wed, 09 May 2012)

  New Revision: 35605

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=35605

  Log:
    lib/mkmf.rb: check pkg-config result
    
    * lib/mkmf.rb (MakeMakefile#pkg_config): check if libs resulted from
      pkg-config works actually.

  Modified files:
    trunk/ChangeLog
    trunk/lib/mkmf.rb

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 35604)
+++ ChangeLog	(revision 35605)
@@ -1,3 +1,8 @@
+Wed May  9 16:36:01 2012  Nobuyoshi Nakada  <nobu@r...>
+
+	* lib/mkmf.rb (MakeMakefile#pkg_config): check if libs resulted from
+	  pkg-config works actually.
+
 Wed May  9 16:01:38 2012  Shugo Maeda  <shugo@r...>
 
 	* lib/net/imap.rb (decode_utf7, encode_utf7): refactored by
Index: lib/mkmf.rb
===================================================================
--- lib/mkmf.rb	(revision 35604)
+++ lib/mkmf.rb	(revision 35605)
@@ -1655,9 +1655,8 @@
       # default to package specific config command, as a last resort.
       get = proc {|opt| `#{pkgconfig} --#{opt}`.chomp}
     end
-    if get
+    if get and try_ldflags(ldflags = get['libs'])
       cflags = get['cflags']
-      ldflags = get['libs']
       libs = get['libs-only-l']
       ldflags = (Shellwords.shellwords(ldflags) - Shellwords.shellwords(libs)).quote.join(" ")
       $CFLAGS += " " << cflags

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