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  • Sebastian Holtermann's avatar
    Autogen: Add moc path prefix generation (AUTOMOC_PATH_PREFIX) · d018d27c
    Sebastian Holtermann authored
    The new `AUTOMOC_PATH_PREFIX` boolean target property enables automatic
    generation of the path prefix `-p` option for `moc`.
    `AUTOMOC_PATH_PREFIX` is initialized from the variable
    `CMAKE_AUTOMOC_PATH_PREFIX`, which is ON by default.
    
    When `AUTOMOC_PATH_PREFIX` is enabled, CMake tests if a `moc`ed header file is
    in one of the include directories.  If so, then the `-p` option, with the
    relative path of the header parent directory to the respective include
    directory, is added to the `moc` command.  If the header file is not in an
    include directory, the `-p` option is omitted.
    
    Closes: #18815 "AUTOMOC: generated files include full relative path,
                    breaking certain reproducible builds"
    d018d27c