Index: head/security/nflib/Makefile
===================================================================
--- head/security/nflib/Makefile	(revision 538353)
+++ head/security/nflib/Makefile	(revision 538354)
@@ -1,38 +1,45 @@
 # $FreeBSD$
 
 PORTNAME=	nflib
 DISTVERSIONPREFIX=	v
 DISTVERSION=	1.0.0-23
 DISTVERSIONSUFFIX=	-g5cf40ed
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	security math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	NTT-based fast lattice cryptography library
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/MIT_LICENSE.txt
 
 BUILD_DEPENDS=	as:devel/binutils
 
 ONLY_FOR_ARCHS=		amd64
 ONLY_FOR_ARCHS_REASON=	unconditionally includes amd64 assembler code
 
 LIB_DEPENDS=	libmpfr.so:math/mpfr \
 		libgmp.so:math/gmp
 
 USES=		cmake compiler:c++11-lang localbase
 USE_GITHUB=	yes
 GH_ACCOUNT=	quarkslab
 GH_PROJECT=	NFLlib
 USE_LDCONFIG=	yes
 
 CMAKE_ON=	NFL_OPTIMIZED
+
+OPTIONS_DEFINE=	NATIVE
+
+NATIVE_DESC=	Build with native optimizations (-march=native)
+
+post-patch-NATIVE-off:
+	@${REINPLACE_CMD} -e 's|-march=native|| ; s|-mtune=native||' ${WRKSRC}/CMakeLists.txt ${WRKSRC}/CMakeCompilers.txt
 
 do-test:
 	@cd ${BUILD_WRKSRC} && \
 		${SETENV} ${CONFIGURE_ENV} ${CMAKE_BIN} ${CMAKE_ARGS} -DBUILD_TESTING:BOOL=ON ${CMAKE_SOURCE_PATH} && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} ${ALL_TARGET} && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} test
 
 .include <bsd.port.mk>