[vcpkg_build_qmake] Disable multi-threaded build when file fails to open

[JackBoosY]

Continue PR #12529.

[JackBoosY]

@Neumann-A

[Neumann-A]

@JackBoosY: According to the logs this did not rerun the qt5 build in CI

[Neumann-A]

Probably just update the port-version of qt5-base. That will rebuilt everything qt5 related

[JackBoosY]

@Neumann-A That's unexpected.
@strega-nil The pipeline should detect the relevant ports and retest these ports.

[Neumann-A]

@JackBoosY: I think it is because the call is in a cmake file within qt5-base which gets installed and used. It is thus not transparent for vcpkg that the function gets called since qt5-base does not use it. Just increase the port-version of qt5-base for now.

[Neumann-A]

to be more precise vcpkg_build_qmake.cmake is not used by qt5-base due to the configure script calling directly qmake. qt_build_submodule uses vcpkg_build_qmake.cmake but since qt5-base is not dependent on neither vcpkg_build_qmake.cmake nor qt_build_submodule vcpkg does not have a chance detecting that dependency for the other qt5 ports

[ras0219]

Hrm, so we need to extend our dep heuristics to scan all files in the port directory instead of just the portfile.cmake.