Index: head/devel/libepoll-shim/Makefile
===================================================================
--- head/devel/libepoll-shim/Makefile	(revision 432801)
+++ head/devel/libepoll-shim/Makefile	(revision 432802)
@@ -1,26 +1,30 @@
 # Created by: Johannes Lundberg <johalun0@gmail.com>
 # $FreeBSD$
 
 PORTNAME=	libepoll-shim
 PORTVERSION=	0.0.20161220
 CATEGORIES=	devel
 
 MAINTAINER=	x11@FreeBSD.org
 COMMENT=	epoll shim implemented using kevent
 
 LICENSE=	MIT
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	FreeBSDDesktop
 GH_PROJECT=	epoll-shim
 GH_TAGNAME=	c04b26b
 
 USE_LDCONFIG=	yes
 
 USES=		uidfix
 MAKE_ARGS=	LIBDIR=${PREFIX}/lib INCLUDEDIR=${PREFIX}/include
 
+post-patch:
+	# -Weverything is not recognized by GCC
+	@${REINPLACE_CMD} -e 's|Weverything|Wall|' ${WRKSRC}/Makefile
+
 pre-install:
 	@${MKDIR} ${STAGEDIR}/${PREFIX}/include/libepoll-shim/sys
 
 .include <bsd.port.mk>