def55a patches/{libcaca,toilet}_pre.local.patch: use $PKG_CONFIG vs. pkg-config.

Authored and Committed by Lucio Andrés Illanes Albornoz 4 years ago
    patches/{libcaca,toilet}_pre.local.patch: use $PKG_CONFIG vs. pkg-config.
    subr/pkg_configure_autotools.subr: export ${PKG_CONFIG{,_PATH}}.