sync code with last improvements from OpenBSD

lib/libdrm/mk/include/Makefile

@@ -0,0 +1,70 @@
+#	$OpenBSD: Makefile,v 1.1 2021/02/11 10:34:51 jsg Exp $
+
+.include "../Makefile.inc"
+
+BASE_FILES=	libsync.h \
+		xf86drm.h \
+		xf86drmMode.h
+DRM_FILES=	amdgpu_drm.h \
+		drm.h \
+		drm_fourcc.h \
+		drm_mode.h \
+		drm_sarea.h \
+		i915_drm.h \
+		mach64_drm.h \
+		mga_drm.h \
+		msm_drm.h \
+		nouveau_drm.h \
+		qxl_drm.h \
+		r128_drm.h \
+		radeon_drm.h \
+		savage_drm.h \
+		sis_drm.h \
+		tegra_drm.h \
+		vc4_drm.h \
+		via_drm.h \
+		virtgpu_drm.h \
+		vmwgfx_drm.h
+RADEON_FILES=	r600_pci_ids.h \
+		radeon_bo.h \
+		radeon_bo_gem.h \
+		radeon_bo_int.h \
+		radeon_cs.h \
+		radeon_cs_gem.h \
+		radeon_cs_int.h \
+		radeon_surface.h
+INTEL_FILES=	intel_aub.h \
+		intel_bufmgr.h \
+		intel_debug.h
+AMDGPU_FILES=	amdgpu.h
+
+includes:
+	cd ${DRM_SRC} && for i in ${BASE_FILES}; do \
+	    cmp -s $$i ${DESTDIR}${X11BASE}/include/$$i || \
+	    ${INSTALL} ${INSTALL_COPY} -m 444 $$i ${DESTDIR}${X11BASE}/include/$$i; \
+	done
+	cd ${DRM_SRC}/include/drm && for i in ${DRM_FILES}; do \
+	    cmp -s $$i ${DESTDIR}${X11BASE}/include/libdrm/$$i || \
+	    ${INSTALL} ${INSTALL_COPY} -m 444 $$i ${DESTDIR}${X11BASE}/include/libdrm/$$i; \
+	done
+	cd ${DRM_SRC}/radeon && for i in ${RADEON_FILES}; do \
+	    cmp -s $$i ${DESTDIR}${X11BASE}/include/libdrm/$$i || \
+	    ${INSTALL} ${INSTALL_COPY} -m 444 $$i ${DESTDIR}${X11BASE}/include/libdrm/$$i; \
+	done
+	cd ${DRM_SRC}/amdgpu && for i in ${AMDGPU_FILES}; do \
+	    cmp -s $$i ${DESTDIR}${X11BASE}/include/libdrm/$$i || \
+	    ${INSTALL} ${INSTALL_COPY} -m 444 $$i ${DESTDIR}${X11BASE}/include/libdrm/$$i; \
+	done
+.if ${WITH_INTEL} == "yes"
+	cd ${DRM_SRC}/intel && for i in ${INTEL_FILES}; do \
+	    cmp -s $$i ${DESTDIR}${X11BASE}/include/libdrm/$$i || \
+	    ${INSTALL} ${INSTALL_COPY} -m 444 $$i ${DESTDIR}${X11BASE}/include/libdrm/$$i; \
+	done
+.endif
+
+beforeinstall: includes
+
+obj: _xenocara_obj
+
+.include <bsd.prog.mk>
+.include <bsd.xorg.mk>