diff --git a/x11/virtualgl/Makefile b/x11/virtualgl/Makefile
index 3e2f0c99cafb..2f777cefb3b0 100644
--- a/x11/virtualgl/Makefile
+++ b/x11/virtualgl/Makefile
@@ -1,55 +1,60 @@
 PORTNAME=	virtualgl
 DISTVERSION=	3.1
 CATEGORIES=	x11 graphics
 MASTER_SITES=	SF/${PORTNAME}/${DISTVERSION}
 DISTNAME=	VirtualGL-${DISTVERSION}
 
 MAINTAINER=	eduardo@FreeBSD.org
 COMMENT=	Redirects commands from an OpenGL app to another X server
 WWW=		https://www.virtualgl.org
 
 ONLY_FOR_ARCHS=	aarch64 amd64 armv7 i386 powerpc powerpc64 powerpc64le
 
 LIB_DEPENDS=	libfltk.so:x11-toolkits/fltk \
 		libturbojpeg.so:graphics/libjpeg-turbo \
 		libxcb-keysyms.so:x11/xcb-util-keysyms
 
 USES=		cmake compiler:c++11-lang gl localbase xorg
 USE_GL=		egl gl glu
 USE_XORG=	x11 xcb xext xtst
 USE_LDCONFIG=	${PREFIX}/VirtualGL/lib
 
 CMAKE_ARGS=	-DTJPEG_INCLUDE_DIR=${LOCALBASE}/include \
 		-DTJPEG_LIBRARY=${LOCALBASE}/lib/libturbojpeg.so \
 		-DVGL_FAKEXCB=on -DVGL_SYSTEMFLTK=on \
 		-DCMAKE_INSTALL_DOCDIR=${DOCSDIR}
 CMAKE_INSTALL_PREFIX=	${LOCALBASE}/VirtualGL
 
+# Some versioned symbols in virtualgl are undefined when libvglfaker.so
+# is linked. Suppress errors with lld >= 17 due to these undefined
+# symbols.
+LDFLAGS+=	-Wl,--undefined-version
+
 DOCSDIR=	${LOCALBASE}/VirtualGL/doc
 
 OPTIONS_DEFINE=	OPENCL OPENSSL XVIDEO DOCS
 OPTIONS_DEFAULT=	OPENCL
 OPTIONS_SUB=	yes
 
 OPENCL_CMAKE_BOOL=	VGL_FAKEOPENCL
 OPENCL_BUILD_DEPENDS=	opencl>=0:devel/opencl
 OPENCL_LIB_DEPENDS=	libOpenCL.so:devel/ocl-icd
 OPENCL_DESC=		Build OpenCL interposer library
 
 OPENSSL_CMAKE_BOOL=	VGL_USESSL
 OPENSSL_USES=		ssl
 
 XVIDEO_CMAKE_BOOL=	VGL_USEXV
 XVIDEO_USE=	XORG=xv
 
 .include <bsd.port.pre.mk>
 
 .if ${ARCH} == "armv7" || ${ARCH} == "i386" || ${ARCH} == "powerpc"
 PLIST_SUB+=	I386="" \
 		AMD64="@comment "
 .else
 PLIST_SUB+=	I386="@comment " \
 		AMD64=""
 .endif
 
 .include <bsd.port.post.mk>