diff --git a/ChangeLog b/ChangeLog
index d4621b0fb1..f179026f00 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Feb 22 19:47:03 2012  Tanaka Akira  <akr@fsij.org>
+
+	* ext/curses/extconf.rb: show the chosen header and library.
+
 Wed Feb 22 19:22:31 2012  Tadayoshi Funaba  <tadf@dotrb.org>
 
 	* reverted 34739 for test/date.
diff --git a/ext/curses/extconf.rb b/ext/curses/extconf.rb
index cd8f685c8a..e1499437d0 100644
--- a/ext/curses/extconf.rb
+++ b/ext/curses/extconf.rb
@@ -44,7 +44,10 @@ header_library = nil
 }
 
 if header_library
-  header, _ = header_library
+  header, library = header_library
+  puts "header: #{header}"
+  puts "library: #{library}"
+
   curses = [header]
   if header == 'curses_colr/curses.h'
     curses.unshift("varargs.h")