--- Makefile.orig	2016-03-27 17:42:15.577904189 +0200
+++ Makefile	2016-03-27 17:43:55.138334676 +0200
@@ -17,7 +17,9 @@
 LICENSE_FILE=	${WRKSRC}/LICENCE
 
 GNU_CONFIGURE=	yes
-USES=		libtool pathfix tar:bzip2
+USES=	cpe libtool pathfix tar:bzip2
+CPE_VENDOR=	pcre
+CPE_PRODUCT=	perl-compatible_regular_expression_library
 USE_LDCONFIG=	yes
 CONFIGURE_ARGS=	--enable-utf --enable-unicode-properties \
 		--enable-pcre8 --enable-pcre16 --enable-pcre32