microsoft
[qtwebengine] build completes without errors but the core Qt6WebEngine module is not being built
Describe the bug qtwebengine doesn't detect that the core Qt6WebEngine module isn't being built
This can happen in different situations where the detection of a dependency fails. The underlying issue is the qtwebengine build system allows some modules to fail to build without the configure script returning an error code. #38497 provides a repro example for this where the trigger is that the ffmpeg version in the current baseline is too new for qtwebengine and it prints this message while still returning 0 as exit code from the configure step:
WARNING: QtWebEngine won't be built. Unmodified ffmpeg >= 5.0 is not supported.
The Vcpkg port patch the Qt configure script to make that warning fatal.
Patch for ffmpeg is here: https://aur.archlinux.org/cgit/aur.git/tree/040-ffmpeg-add-av_stream_get_first_dts-for-chromium.patch?h=ffmpeg-intel-full-git
