mesa: Add xcb-fixes to loader when using x11 and dri3

Backport fix for undefined symbol for xcb_xfixes_create_region in loader_dri3_helper.c.

(From OE-Core rev: fd55d41c9d2e79fd7f7665107d1640a2dd9a3dc3)

Signed-off-by: Tom Hochstein <tom.hochstein@nxp.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/mesa/files/0001-meson-Add-xcb-fixes-to-loader-when-using-x11-and-dri.patch

@@ -0,0 +1,36 @@
+From cf17d6251653f4a98e7c4f904ea2f0bc0ecedd5c Mon Sep 17 00:00:00 2001
+From: Duncan Hopkins <duncan@duncanhopkins.me.uk>
+Date: Thu, 15 Oct 2020 12:14:57 +0100
+Subject: [PATCH] meson: Add xcb-fixes to loader when using x11 and dri3. Fixes
+ undefined symbol for xcb_xfixes_create_region in loader_dri3_helper.c
+
+loader_dr3_helper.c uses xcb_xfixes_create_region() that requires dep_xcb_xfixes to link. This is dependent on with_platform_x11 and with_dri3.
+But the source meson file does not set this up dependent on with_dri3.
+The build was initialsed using platforms=x11 and gallium-drivers=zink,swrast.
+
+Reviewed-by: Eric Anholt <eric@anholt.net>
+Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7164>
+
+Upstream-Status: Backport [cf17d6251653f4a98e7c4f904ea2f0bc0ecedd5c]
+
+---
+ meson.build | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/meson.build b/meson.build
+index cfe02fa6373..3cb3c904927 100644
+--- a/meson.build
++++ b/meson.build
+@@ -1782,7 +1782,8 @@ if with_platform_x11
+       dep_xxf86vm = dependency('xxf86vm')
+     endif
+   endif
+-  if (with_egl or (
++  if (with_egl or 
++      with_dri3 or (
+       with_gallium_vdpau or with_gallium_xvmc or with_gallium_xa or
+       with_gallium_omx != 'disabled'))
+     dep_xcb_xfixes = dependency('xcb-xfixes')
+-- 
+2.17.1
+

meta/recipes-graphics/mesa/mesa.inc

@@ -22,6 +22,7 @@ SRC_URI = "https://mesa.freedesktop.org/archive/mesa-${PV}.tar.xz \
            file://0001-meson-misdetects-64bit-atomics-on-mips-clang.patch \
            file://0001-futex.h-Define-__NR_futex-if-it-does-not-exist.patch \
            file://0001-anv-fix-a-build-race-between-generating-a-header-and.patch \
+           file://0001-meson-Add-xcb-fixes-to-loader-when-using-x11-and-dri.patch \
            "
 
 SRC_URI[sha256sum] = "d1a46d9a3f291bc0e0374600bdcb59844fa3eafaa50398e472a36fc65fd0244a"