https://bugs.kde.org/show_bug.cgi?id=469092
Bug ID: 469092
Summary: EGL_NO_X11 ignored by EGL find_package
Classification: Frameworks and Libraries
Product: extra-cmake-modules
Version: 5.105.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: ecm-bugs-n...@kde.org
Reporter: rinigus....@gmail.com
Target Milestone: ---
SUMMARY
On platform without X11, find_package(EGL) fails as it tries to compile code
without EGL_NO_X11 define. This was encountered on SailfishOS where we have the
following pkg-config EGL file:
```
[root@fdebf063bc5a builder]# cat /usr/lib/pkgconfig/egl.pc
prefix=/usr
libdir=${prefix}/lib
includedir=${prefix}/include
Name: egl
Description: Mesa EGL Library
Version: 21.1.6
Requires.private: libdrm >= 2.4.75
Libs: -L${libdir} -lEGL
Libs.private: -lpthread -pthread -lm -ldl
Cflags: -I${includedir} -DEGL_NO_X11
```
As -DEGL_NO_X11 was not used while checking for code compilation, HAVE_EGL was
set to false.
I am not an expert in CMake, but it looks like that define option should be
somewhere here:
https://invent.kde.org/frameworks/extra-cmake-modules/-/blob/master/find-modules/FindEGL.cmake#L100
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: SailfishOS 4.5
(available in About System)
KDE Plasma Version: -
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.8
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