meson: fix up wrong escaping of variables in .pc file and missing variables in -uninstalled.pc file

Obviously a bit of a hack, but maybe ok as a workaround for now?

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Workaround for pkg.generate() escaping spaces in pc variables that shouldn't be escaped. Perhaps going back to configure_file() would be a better option though.

Fixes #884 (closed)

Also needs the same done for libraries variable in gstreamer-plugins-base-1.0.pc if acceptable as workaround.

changed milestone to %1.19.1

added 2 commits

• 190f257c - meson: add custom pkg-config variables also to uninstalled .pc files
• 901a75e7 - meson: fix up wrong escaping of variables in gl and plugins-base .pc file

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changed title from meson: fix up wrong escaping of variables in gstreamer-gl-1.0 file to meson: fix up wrong escaping of variables in .pc file and missing variables in -uninstalled.pc file

resolved all threads

approved this merge request

This can go away again once https://github.com/mesonbuild/meson/pull/8623 lands in a Meson we can depend on (0.59 at the earliest).

assigned to @gstreamer-merge-bot

mentioned in commit tpm/gst-plugins-base@5bc1a632

mentioned in commit tpm/gst-plugins-base@57578529

added 6 commits

• 901a75e7...0b39eca7 - 4 commits from branch gstreamer:master
• 5bc1a632 - meson: add custom pkg-config variables also to uninstalled .pc files
• 57578529 - meson: fix up wrong escaping of variables in gl and plugins-base .pc file

Compare with previous version

I couldn't merge this branch: CI failed!

assigned to @gstreamer-merge-bot and unassigned @tpm

merged