Index: head/archivers/zstd/Makefile
===================================================================
--- head/archivers/zstd/Makefile	(revision 425456)
+++ head/archivers/zstd/Makefile	(revision 425457)
@@ -1,27 +1,28 @@
 # Created by: John Marino <marino@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	zstd
 PORTVERSION=	1.1.1
 DISTVERSIONPREFIX=	v
 CATEGORIES=	archivers
 
 MAINTAINER=	marino@FreeBSD.org
 COMMENT=	Zstandard - Fast real-time compression algorithm
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		gmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	facebook
 
 PLIST_SUB=	LIBVER=${PORTVERSION}
 ALL_TARGET=	default
 MAKE_ARGS=	MANDIR="${PREFIX}/man/man1" \
 		LIBDIR="${PREFIX}/lib" \
 		INCLUDEDIR="${PREFIX}/include"
 
 BROKEN_FreeBSD_9=	missing builtin bswap32 and bswap64
+MAKE_JOBS_UNSAFE=	yes
 
 .include <bsd.port.mk>