mesa: Support building without opengl

mesa can build certain things without opengl: most importantly vulkan
drivers.

Add comments on the dependencies between the packageconfigs. Also add
a few dependencies to packageconfigs. Modify default packageconfig to
do the reasonable thing based on distro features.

Add a backported patch to fix the build with --disable-opengl. Fix
do_install_append() so it works even if dri drivers are not built.

(From OE-Core rev: 48d39cf43b59c96d4deca783ec66686f5c8cd3e7)

Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/recipes-graphics/mesa/mesa_17.1.7.bb b/meta/recipes-graphics/mesa/mesa_17.1.7.bb
index 494cdc6d83..a50f32c025 100644
--- a/meta/recipes-graphics/mesa/mesa_17.1.7.bb
+++ b/meta/recipes-graphics/mesa/mesa_17.1.7.bb
@@ -10,6 +10,7 @@ SRC_URI = "https://mesa.freedesktop.org/archive/mesa-${PV}.tar.xz \
            file://0001-ac-fix-build-after-LLVM-5.0-SVN-r300718.patch \
            file://0002-gallivm-Fix-build-against-LLVM-SVN-r302589.patch \
            file://0001-winsys-svga-drm-Include-sys-types.h.patch \
+           file://0001-configure.ac-Always-check-for-expat.patch \
            "
 SRC_URI[md5sum] = "e40bb428a263bd28cbf6478dae45b207"
 SRC_URI[sha256sum] = "69f472a874b1122404fa0bd13e2d6bf87eb3b9ad9c21d2f39872a96d83d9e5f5"