Hi Alexander,
I have been trying to cross compile qtwayland to run on the i.mx6. I have been
able to successfully build qt5, but after running the qmake and try to build
qtwayland I get this error.
.obj/release-shared/wlcompositor.o: In function
`Wayland::Compositor::Compositor(WaylandCompositor*)':
wlcompositor.cpp:(.text+0x3a8): undefined reference to
`GraphicsHardwareIntegration::createGraphicsHardwareIntegration(WaylandCompositor*)'
collect2: ld returned 1 exit status
make[2]: *** [../../lib/libQt5Compositor.so.5.0.0] Error 1
make[2]: Leaving directory
`/home/alexander/qtfilesystem/home/linaro/qtwayland/src/compositor'
make[1]: *** [sub-compositor-make_first] Error 2
make[1]: Leaving directory
`/home/alexander/qtfilesystem/home/linaro/qtwayland/src'
make: *** [sub-src-make_first] Error 2
I believe the error is from that wayland-egl is not properly configured for
qtwayland. However, the GPU driver for the i.mx6 has the wayland-egl
extensions. I tried making library links so that when qtwayland gets configure,
qtwayland test the correct EGL library.
I attached the qtwayland config log and my build for qtwayland. If you have any
advice on this issue please let me. Thanks for your help.
It looks like the problem with the configure test is this:
!contains(QT_CONFIG, no-pkg-config) {
CONFIG += link_pkgconfig
PKGCONFIG += wayland-egl
} else {
LIBS += -lwayland-egl
}
You do have support for pkg-config, but you don't have a .pc file for
wayland-egl, and thus you get this:
Project ERROR: Package wayland-egl not found
which is considered a qmake error as a result of unsuccessfully searching for a
pkg-config package.
I've noticed this problem in the past, but haven't discovered a decent work
around yet for this case.
you get the undefined reference to
`Wayland::Compositor::Compositor(WaylandCompositor*)` because no hardware
integration was built. In your case the hardware integration would be
wayland-egl. There should also be some kind of module check to make sure that
prevents you from building the module if no suitable hardware integration
configuration was detected.
My solution for now would be:
If you do have a pkg-config file for your wayland-egl configuration as part of
the i.mx6 sdk, then add that your your pkg-config path. If not, you could
change edit the configure test for wayland_egl.pro to just include LIBS +=
-lwayland-egl and possibly also the location of that lib if its somewhere
unusual.
--
Andy Nichols
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