Discussion:
[Bug 11556] New: Can not build qt5base 5.11.2 with weston 3.0.0 and vivante GPU. error: invalid conversion from ‘void*’ to ‘EGLNativeDisplayType {aka wl_display*}’ [-fpermissive]
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b***@busybox.net
2018-12-10 16:17:38 UTC
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https://bugs.busybox.net/show_bug.cgi?id=11556

Bug ID: 11556
Summary: Can not build qt5base 5.11.2 with weston 3.0.0 and
vivante GPU. error: invalid conversion from ‘void*’ to
‘EGLNativeDisplayType {aka wl_display*}’
[-fpermissive]
Product: buildroot
Version: 2018.11
Hardware: Other
OS: Linux
Status: NEW
Severity: blocker
Priority: P5
Component: Other
Assignee: ***@buildroot.uclibc.org
Reporter: ***@stettbacher.ch
CC: ***@uclibc.org
Target Milestone: ---

Created attachment 7896
--> https://bugs.busybox.net/attachment.cgi?id=7896&action=edit
Patch to reproduce the problem

There is a 100% reproduceable error with the attached patch. The full error
looks like this:



qeglfsvivwlintegration.cpp: In member function ‘virtual void
QEglFSVivWaylandIntegration::platformInit()’:
qeglfsvivwlintegration.cpp:63:50: error: invalid conversion from ‘void*’ to
‘EGLNativeDisplayType {aka wl_display*}’ [-fpermissive]
mNativeDisplay = fbGetDisplay(mWaylandDisplay);
^
qeglfsvivwlintegration.cpp: In member function ‘virtual wl_egl_window*
QEglFSVivWaylandIntegration::createNativeWindow(QPlatformWindow*, const QSize&,
const QSurfaceFormat&)’:
qeglfsvivwlintegration.cpp:84:101: error: invalid conversion from ‘void*’ to
‘EGLNativeWindowType {aka wl_egl_window*}’ [-fpermissive]
EGLNativeWindowType eglWindow = fbCreateWindow(mNativeDisplay, 0, 0,
size.width(), size.height());

^
qeglfsvivintegration.cpp: In member function ‘virtual void
QEglFSVivIntegration::platformInit()’:
qeglfsvivintegration.cpp:68:60: error: invalid conversion from ‘void*’ to
‘EGLNativeDisplayType {aka wl_display*}’ [-fpermissive]
mNativeDisplay = fbGetDisplayByIndex(framebufferIndex());
^
qeglfsvivintegration.cpp: In member function ‘virtual wl_egl_window*
QEglFSVivIntegration::createNativeWindow(QPlatformWindow*, const QSize&, const
QSurfaceFormat&)’:
qeglfsvivintegration.cpp:91:101: error: invalid conversion from ‘void*’ to
‘EGLNativeWindowType {aka wl_egl_window*}’ [-fpermissive]
EGLNativeWindowType eglWindow = fbCreateWindow(mNativeDisplay, 0, 0,
size.width(), size.height());

^
Makefile:1305: recipe for target '.obj/qeglfsvivwlintegration.o' failed
make[7]: *** [.obj/qeglfsvivwlintegration.o] Error 1
make[7]: Leaving directory
'/home/patrickk/tmp/buildroot/a/output/build/qt5base-5.11.2/src/plugins/platforms/eglfs/deviceintegration/eglfs_viv_wl'
Makefile:123: recipe for target 'sub-eglfs_viv_wl-make_first' failed
make[6]: *** [sub-eglfs_viv_wl-make_first] Error 2
make[6]: *** Waiting for unfinished jobs....
Makefile:1305: recipe for target '.obj/qeglfsvivintegration.o' failed
make[7]: *** [.obj/qeglfsvivintegration.o] Error 1
make[7]: Leaving directory
'/home/patrickk/tmp/buildroot/a/output/build/qt5base-5.11.2/src/plugins/platforms/eglfs/deviceintegration/eglfs_viv'
Makefile:98: recipe for target 'sub-eglfs_viv-make_first' failed
make[6]: *** [sub-eglfs_viv-make_first] Error 2



*** Reproduce the Problem ***
To reproduce the problem, please follow these steps:
- Apply the attached patch to buildroot 2018.11
- make polytab_defconfig
- make

*** Hardware used ***
The used computer on module is a Ka-Ro TX6Q. If you supply a patch for my
problem, I am able to test it instantly, since I have a working hardware next
to me.
https://www.karo-electronics.de/743.html

*** Goal ***
The goal is to have a successful build with a working weston integration with
hardware acceleration.
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