Fix python module leaving PKG_CONFIG_LIBDIR set in os.environ.
Fix python module leaving PKG_CONFIG_LIBDIR set in os.environ.

pexip/meson,mesonbuild/meson,pexip/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson,jpakkane/meson,pexip/meson,pexip/meson,jpakkane/meson,pexip/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson,mesonbuild/meson,pexip/meson,pexip/meson,jpakkane/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson,jpakkane/meson,pexip/meson,pexip/meson,pexip/meson,jpakkane/meson,jpakkane/meson