On 25.10.23 02:20, Neal Gompa wrote:
On Tue, Oct 24, 2023 at 5:18 PM Sandro Mani <manisan...@gmail.com> wrote:
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?

This needs to be fixed in FindPython.cmake to detect whether cmake is
running in a package build environment to get the correct path.

Though this also concerns the case where I build the application locally say for development, not necessarily just when building the rpm? Shouldn't FindPython just always return the rpm_prefix paths, since you are most-likely attempting to find the system python?

Sandro

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