Improved pkg-config's recursive package list expansion performance.
Thanks to Matthew Hanna for the fix.
Handle an empty prefix setting correctly when --define-prefix is used.
(#97453)
Lazily load pc files instead of reading all available pc files during
initialization. Thanks to Marco Diego Aurélio Mesquita for the fix.
(#98215)
Check the CPATH environment variable when determining system include
paths like GCC does. Document the system search path behavior. Thanks
to v4hn for the fix. (#99224)
Make PKG_CHECK_MODULES show the module list rather than the variable
prefix in configure output. Thanks to Russ Albery for the fix.
(#98334)
pkg-config 0.29.2