$OpenBSD: patch-Makefile_PL,v 1.2 2008/10/29 11:39:36 jasper Exp $
--- Makefile.PL.orig	Wed Jul 25 20:13:12 2007
+++ Makefile.PL	Wed Oct 29 11:34:58 2008
@@ -49,5 +49,6 @@ WriteMakefile(
 				Math::BigInt => 1.87,
 				XSLoader => 0.02,
 			   }, 
-    'LIBS'		=> ['-lgmp'],
+    'LIBS'	=> ["$ENV{LDFLAGS} -lgmp"],   # e.g., '-lm' 
+    'INC'	=> "$ENV{CPPFLAGS}",
 );
