ensure that the proper include path is picked up; ok maintainer

math/p5-Math-GMP/patches/patch-Makefile_PL

@@ -1,11 +1,12 @@
-$OpenBSD: patch-Makefile_PL,v 1.2 2002/09/21 11:59:39 avsm Exp $
---- Makefile.PL.orig	Mon Feb 18 02:39:39 2002
-+++ Makefile.PL	Wed Sep 18 10:57:43 2002
-@@ -5,6 +5,6 @@ use ExtUtils::MakeMaker;
+$OpenBSD: patch-Makefile_PL,v 1.3 2003/10/18 10:30:26 naddy Exp $
+--- Makefile.PL.orig	2002-02-17 20:39:39.000000000 +0100
++++ Makefile.PL	2003-10-15 22:13:16.000000000 +0200
+@@ -5,6 +5,7 @@ use ExtUtils::MakeMaker;
  WriteMakefile(
      'NAME'	=> 'Math::GMP',
      'VERSION_FROM' => 'lib/Math/GMP.pm', # finds $VERSION
 -    'LIBS'	=> ['-lgmp'],   # e.g., '-lm' 
 +    'LIBS'	=> ["$ENV{LDFLAGS} -lgmp"],   # e.g., '-lm' 
++    'INC'	=> "$ENV{CPPFLAGS}",
      'DEFINE'	=> '',     # e.g., '-DHAVE_SOMETHING' 
  );