qtbase: do not pass -DEGL_API_FB=1 for x11 in distro features
* sympthoms:
* qml applications complain/crash with 'Failed to create OpenGL context...'
* qt5-opengles2-test hangs forever without displaying anything
* analysis:
qtbase's configure complains:
<...>/usr/include/EGL/eglvivante.h:117:16: note: class type '_FBDisplay' is incomplete
and configure ends up with no X11 support:
EGLFS ................ no
EGLFS i.MX6 ........ no
EGLFS i.MX6 Wayland. no
EGLFS EGLDevice .... no
EGLFS GBM .......... no
EGLFS Mali ......... no
EGLFS Raspberry Pi . no
EGLFS X11 .......... no
LinuxFB .............. no
Mir client............ no
XCB .................. yes (system library)
EGL on X ........... no
* background:
'-DEGL_API_FB=1' was introduced in
commit
62c8d8cc6500711464049662489729f208240be8
Author: Martin Jansa <martin.jansa@gmail.com>
Date: Mon Feb 29 18:22:28 2016 +0100
qtbase: Allow to build eglfs with x11 in DISTRO_FEATURES
* even when x11 is in DISTRO_FEATURES someone might configure qtbase
to build with eglfs, that works OK with Qt 5.5.1, because
-DEGL_API_FB=1 is also passed through
mkspecs/devices/linux-imx6-g++/qmake.conf
but with 5.6 and 5.7 it fails when X11 headers are include with their
own Status enum (the same errors like before
https://codereview.qt-project.org/#/c/105116/2)
Adding -DEGL_API_FB=1 like linux-imx6-g++/qmake.conf does is simplest
workaround to prevent imx-gpu-viv from including Xlib from
EGL/eglvivante.h
* comments on original commit (at today's' environment):
* it breaks GL support for X11
* in meta-freescale's qtbase.bbappend eglfs is disabled explicitly when
x11 in DISTRO_FEATURES so it seems that vivante driver does not support
eglfs and x11 at the same build.
Tested: setting 'eglfs' in PACKAGECONFIG builds fine but bare eglfs
support is skipped.
Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
