libgtk3 can conditionally be build with or without the X11 backend
unlike libgtk2. If libgtk3 is enabled and the X11 backend is not enabled
for BR2_PACKAGE_QT5_VERSION_LATEST, QT_EGL_NO_X11 or
MESA_EGL_NO_X11_HEADERS needs to be defined.
The proper way is to patch Qt to use pkg-config to fetch the correct
flags [1], or to add it to arch.conf like is done in commit 7d286be4f9.
For now, however, just disable libgtk3 support unless the X11 backend
is used.
Fixes http://autobuild.buildroot.net/results/6f3c2fcb0a44cd13ef4c73822d4d08f923291099
[1] https://codereview.qt-project.org/#/c/198906/
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Cc: Julien Corjon <corjon.j@ecagroup.com>
Cc: Brent Sink <brents_3@hotmail.com>
Cc: Naoki Matsumoto <n-matsumoto@melcoinc.co.jp>
[Arnout:
- extend commit message
- improve comment
- also pass -no-gtk if libgtk3 is not selected]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
e8d2188db3