Index: head/security/libtasn1/Makefile
===================================================================
--- head/security/libtasn1/Makefile	(revision 518572)
+++ head/security/libtasn1/Makefile	(revision 518573)
@@ -1,33 +1,34 @@
 # Created by: Sergei Kolobov <sergei@kolobov.com>
 # $FreeBSD$
 
 PORTNAME=	libtasn1
 PORTVERSION=	4.15.0
 CATEGORIES=	security
 MASTER_SITES=	GNU \
 		GNUPG/gnutls/${PORTNAME}
 
 MAINTAINER=	novel@FreeBSD.org
 COMMENT=	ASN.1 structure parser library
 
 LICENSE=	LGPL21+ GPLv3
 LICENSE_COMB=	multi
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		cpe pkgconfig pathfix gmake libtool
+USE_CSTD=	c99
 USE_LDCONFIG=	yes
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
 CPE_VENDOR=	gnu
 
 OPTIONS_DEFINE=	DOCS
 
 DOCS=		AUTHORS NEWS README.md THANKS doc/TODO \
 		doc/libtasn1.html doc/libtasn1.pdf doc/libtasn1.ps
 INFO=		libtasn1
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	cd ${WRKSRC} && ${INSTALL_DATA} ${DOCS} ${STAGEDIR}${DOCSDIR}
 
 .include <bsd.port.mk>