On QNX 7.1 x86drm.h is located under <...>/usr/include/libdrm, unlike
linux where it's present under /usr/include.
find_path would not find it on QNX, and instead get /usr/include from
host, which resulted in a failure to compile.
Task-number: QTBUG-83202
Change-Id: I03d6c2d4dfbe91bb70df0a322e84890bd7c8548a
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
This reduces the amount of warning messages when the pkg-config
feature is disabled.
Task-number: QTBUG-85276
Change-Id: I11a6dfb6273a1e48c47d1ef5c1a5f70ba990fbc0
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Tegra has drm.h header in include/drm instead of include/libdrm
Both paths are defined in libdrm.pc, but those are not used since this
cmake file searches only for xf86drm.h.
Change-Id: If1e979c7d5aec520b18eed5b3fcbb5ac2e15cc62
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>