diff --git a/lib/mesa/mk/libEGL/Makefile b/lib/mesa/mk/libEGL/Makefile
index a72dcbf72..8654f307b 100644
--- a/lib/mesa/mk/libEGL/Makefile
+++ b/lib/mesa/mk/libEGL/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.1 2020/08/26 06:02:36 jsg Exp $
+#	$OpenBSD: Makefile,v 1.2 2020/08/28 16:07:18 jsg Exp $
 
 .include <bsd.xconf.mk>
 
@@ -59,6 +59,9 @@ LDADD+= -L${.CURDIR}/../libgbm/${__objdir} -lgbm \
 
 obj: _xenocara_obj
 
+beforeinstall:
+	rm -f ${DESTDIR}${LIBDIR}/lib${LIB}.la
+
 .include <bsd.lib.mk>
 .include <bsd.xorg.mk>
 
diff --git a/lib/mesa/mk/libGL/Makefile b/lib/mesa/mk/libGL/Makefile
index c5f6deee6..f1cc54b8b 100644
--- a/lib/mesa/mk/libGL/Makefile
+++ b/lib/mesa/mk/libGL/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.1 2020/08/26 06:02:36 jsg Exp $
+#	$OpenBSD: Makefile,v 1.2 2020/08/28 16:07:18 jsg Exp $
 
 .include <bsd.xconf.mk>
 
@@ -82,6 +82,9 @@ LDADD+=	${.CURDIR}/../libloader_dri3_helper/${__objdir}/libloader_dri3_helper.a
 
 obj: _xenocara_obj
 
+beforeinstall:
+	rm -f ${DESTDIR}${LIBDIR}/lib${LIB}.la
+
 .include <bsd.lib.mk>
 .include <bsd.xorg.mk>
 
diff --git a/lib/mesa/mk/libGLESv1_CM/Makefile b/lib/mesa/mk/libGLESv1_CM/Makefile
index d85586b22..f9151a34b 100644
--- a/lib/mesa/mk/libGLESv1_CM/Makefile
+++ b/lib/mesa/mk/libGLESv1_CM/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.1 2020/08/26 06:02:36 jsg Exp $
+#	$OpenBSD: Makefile,v 1.2 2020/08/28 16:07:18 jsg Exp $
 
 LIB=	GLESv1_CM
 
@@ -15,6 +15,9 @@ LDADD+= -L${.CURDIR}/../libglapi/${__objdir} -lglapi \
 
 obj: _xenocara_obj
 
+beforeinstall:
+	rm -f ${DESTDIR}${LIBDIR}/lib${LIB}.la
+
 .include <bsd.lib.mk>
 .include <bsd.xorg.mk>
 
diff --git a/lib/mesa/mk/libGLESv2/Makefile b/lib/mesa/mk/libGLESv2/Makefile
index 407b5122d..5c010056c 100644
--- a/lib/mesa/mk/libGLESv2/Makefile
+++ b/lib/mesa/mk/libGLESv2/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.1 2020/08/26 06:02:36 jsg Exp $
+#	$OpenBSD: Makefile,v 1.2 2020/08/28 16:07:19 jsg Exp $
 
 LIB=	GLESv2
 
@@ -15,6 +15,9 @@ LDADD+= -L${.CURDIR}/../libglapi/${__objdir} -lglapi \
 
 obj: _xenocara_obj
 
+beforeinstall:
+	rm -f ${DESTDIR}${LIBDIR}/lib${LIB}.la
+
 .include <bsd.lib.mk>
 .include <bsd.xorg.mk>
 
diff --git a/lib/mesa/mk/libOSMesa/Makefile b/lib/mesa/mk/libOSMesa/Makefile
index 971002918..c8580f75e 100644
--- a/lib/mesa/mk/libOSMesa/Makefile
+++ b/lib/mesa/mk/libOSMesa/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.1 2020/08/26 06:02:36 jsg Exp $
+#	$OpenBSD: Makefile,v 1.2 2020/08/28 16:07:19 jsg Exp $
 
 LIB=	OSMesa
 
@@ -20,6 +20,9 @@ CPPFLAGS+=	-I${MESA_SRC}/src/mesa \
 
 obj: _xenocara_obj
 
+beforeinstall:
+	rm -f ${DESTDIR}${LIBDIR}/lib${LIB}.la
+
 .include <bsd.lib.mk>
 .include <bsd.xorg.mk>
 
diff --git a/lib/mesa/mk/libgbm/Makefile b/lib/mesa/mk/libgbm/Makefile
index 417af8ebb..e14d41fcd 100644
--- a/lib/mesa/mk/libgbm/Makefile
+++ b/lib/mesa/mk/libgbm/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.1 2020/08/26 06:02:37 jsg Exp $
+#	$OpenBSD: Makefile,v 1.2 2020/08/28 16:07:19 jsg Exp $
 
 .include <bsd.xconf.mk>
 
@@ -29,6 +29,9 @@ LDADD+= -L${X11BASE}/lib -ldrm
 
 obj: _xenocara_obj
 
+beforeinstall:
+	rm -f ${DESTDIR}${LIBDIR}/lib${LIB}.la
+
 .include <bsd.lib.mk>
 .include <bsd.xorg.mk>
 
diff --git a/lib/mesa/mk/libglapi/Makefile b/lib/mesa/mk/libglapi/Makefile
index 0fa0e1d3f..c7bbf1e6c 100644
--- a/lib/mesa/mk/libglapi/Makefile
+++ b/lib/mesa/mk/libglapi/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.1 2020/08/26 06:02:37 jsg Exp $
+#	$OpenBSD: Makefile,v 1.2 2020/08/28 16:07:19 jsg Exp $
 
 LIB=	glapi
 
@@ -18,6 +18,9 @@ CPPFLAGS+=	-DMAPI_MODE_GLAPI \
 
 obj: _xenocara_obj
 
+beforeinstall:
+	rm -f ${DESTDIR}${LIBDIR}/lib${LIB}.la
+
 .include <bsd.lib.mk>
 .include <bsd.xorg.mk>
 
diff --git a/lib/mesa/mk/libvulkan_intel/Makefile b/lib/mesa/mk/libvulkan_intel/Makefile
index 96b84881e..842d1a268 100644
--- a/lib/mesa/mk/libvulkan_intel/Makefile
+++ b/lib/mesa/mk/libvulkan_intel/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.1 2020/08/26 06:02:41 jsg Exp $
+#	$OpenBSD: Makefile,v 1.2 2020/08/28 16:07:19 jsg Exp $
 
 LIB=	vulkan_intel
 
@@ -30,7 +30,7 @@ VKARCH=x86_64
 VKARCH=${MACHINE_ARCH}
 .endif
 
-install:
+install: beforeinstall
 	${INSTALL} ${INSTALL_COPY} ${INSTALL_STRIP} \
 	    -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
 	    lib${LIB}.so ${DESTDIR}${X11BASE}/lib
@@ -40,6 +40,9 @@ install:
 
 obj: _xenocara_obj
 
+beforeinstall:
+	rm -f ${DESTDIR}${LIBDIR}/lib${LIB}.la
+
 .include <bsd.lib.mk>
 .include <bsd.xorg.mk>
 
diff --git a/lib/mesa/mk/libvulkan_radeon/Makefile b/lib/mesa/mk/libvulkan_radeon/Makefile
index 63807edae..0b636d135 100644
--- a/lib/mesa/mk/libvulkan_radeon/Makefile
+++ b/lib/mesa/mk/libvulkan_radeon/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.1 2020/08/26 06:02:41 jsg Exp $
+#	$OpenBSD: Makefile,v 1.2 2020/08/28 16:07:19 jsg Exp $
 
 LIB=	vulkan_radeon
 
@@ -88,7 +88,7 @@ VKARCH=x86_64
 VKARCH=${MACHINE_ARCH}
 .endif
 
-install:
+install: beforeinstall
 	${INSTALL} ${INSTALL_COPY} ${INSTALL_STRIP} \
 	    -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
 	    lib${LIB}.so ${DESTDIR}${X11BASE}/lib
@@ -98,6 +98,9 @@ install:
 
 obj: _xenocara_obj
 
+beforeinstall:
+	rm -f ${DESTDIR}${LIBDIR}/lib${LIB}.la
+
 .include <bsd.lib.mk>
 .include <bsd.xorg.mk>