--- Makefile.orig	2015-03-23 20:40:36.116510505 +0100
+++ Makefile	2015-03-23 20:41:11.164509873 +0100
@@ -13,8 +13,10 @@
 MAINTAINER=	kuriyama@FreeBSD.org
 COMMENT=	The GNU Privacy Guard
 
-USES=		charsetfix gmake tar:bzip2
+USES=		charsetfix cpe gmake tar:bzip2
 GNU_CONFIGURE=	YES
+CPE_PRODUCT=	privacy_guard
+CPE_VENDOR=	gnu
 .if ${MACHINE_CPU:Mi586}
 MACHINE_ARCH=	i586
 .endif