PEP-668, cmake FindPython Python_SITEARCH and rpm_prefix

Sandro Mani <manisandro@xxxxxxxxx> · Tue, 24 Oct 2023 23:16:56 +0200



    Hi
    Since some time, Fedora's cmake FindPython will return
      Python_SITEARCH=/usr/local/lib64/pythonX.Y/site-packages, which
      results in possible failure to find python libraries below the
      system site packages dir (aka shipped by RPMs). A workaround(?) is
      to call
    EXECUTE_PROCESS(COMMAND ${Python_EXECUTABLE}
        -c "import
          sysconfig;print(sysconfig.get_path(\"platlib\", \"rpm_prefix\"), end=\"\")"
        OUTPUT_VARIABLE Python_SITEARCH)
    and such workarounds are starting to appear
        in applications [1]. Any opinions on whether this is indeed the
        best way to handle the issue, whether Fedoras FindPython needs
        fixing, or whether there already is a cleaner solution?
    Thanks

        Sandro
    [1]
        https://github.com/qgis/QGIS/pull/55039/files

      
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