[oe] [meta-qt5][PATCH] Pass -DMESA_EGL_NO_X11_HEADERS=1 when x is disabled

[Khem Raj]

Some graphics drives e.g. mali/mesa depend on this define
to use proper guards in eglplatform.h

Fixes

| In file included from /mnt/a/zonit/build/tmp/work/aarch64-bec-linux/qtmultimedia/5.10.1+gitAUTOINC+038716bb1f-r0/recipe-sysroot/usr/include/EGL/egl.h:36:0,
|                  from .moc/../../../../../../git/src/plugins/videonode/egl/qsgvideonode_egl.h:48,
|                  from .moc/moc_qsgvideonode_egl.cpp:9:
| /mnt/a/zonit/build/tmp/work/aarch64-bec-linux/qtmultimedia/5.10.1+gitAUTOINC+038716bb1f-r0/recipe-sysroot/usr/include/EGL/eglplatform.h:125:10: fatal error: X11/Xlib.h: No such file or directory
|  #include <X11/Xlib.h>
|           ^~~~~~~~~~~~
| compilation terminated.
| make[4]: *** [Makefile:461: .obj/moc_qsgvideonode_egl.o] Error 1

Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 recipes-qt/qt5/qtmultimedia_git.bb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/recipes-qt/qt5/qtmultimedia_git.bb b/recipes-qt/qt5/qtmultimedia_git.bb
index 2cb1bd5..efe848f 100644
--- a/recipes-qt/qt5/qtmultimedia_git.bb
+++ b/recipes-qt/qt5/qtmultimedia_git.bb
@@ -25,6 +25,7 @@ EXTRA_QMAKEVARS_CONFIGURE += "${PACKAGECONFIG_CONFARGS}"
 # Disable GStreamer if completely disabled
 EXTRA_QMAKEVARS_CONFIGURE += "${@bb.utils.contains_any('PACKAGECONFIG', 'gstreamer gstreamer010', '', '-no-gstreamer', d)}"
 
+CXXFLAGS += "${@bb.utils.contains('DISTRO_FEATURES', 'x11', '', '-DMESA_EGL_NO_X11_HEADERS=1', d)}"
 # Patches from https://github.com/meta-qt5/qtmultimedia/commits/b5.10
 # 5.10.meta-qt5.2
 SRC_URI += "\
-- 
2.16.2