add CFLAGS for older perls
Checking in changes prior to tagging of version 0.03.

Changelog diff is:

diff --git a/Changes b/Changes
index 22a6238..c79aa7e 100644
--- a/Changes
+++ b/Changes
@@ -1,6 +1,8 @@
 Revision history for Perl extension List::UtilsBy::XS

 {{$NEXT}}
+
+0.03 2013-06-25T02:27:07Z
         - Add CFLAGS(-DPERL_EXT) for older Perl

 0.02 2013-06-24T05:35:29Z