We also need to allow the use of new functions in glib that were introduced later than our minimum supported version, if they are available on the build platform. See https://github.com/ClusterLabs/pacemaker/pull/3929#discussion_r2250963422 for details.

In T982#15872, @clumens wrote:

I bet running this from a source directory where you don't also have PCMK_schema_directory set is something that doesn't happen all that often.

That should work - the whole point of that block is basically to check if we're running from a source checkout and if so, set the right schema directory. I bet running this from a source directory where you don't also have PCMK_schema_directory set is something that doesn't happen all that often.

My guess as to why this stopped working is that the API key you use to link github and copr is only good for 180 days and then must be regenerated.

I can see how this might be handy to someone, but it's never come up for me.