x86_64 is used as a baseline: the "x86_64" entry, whatever status it has,
is transformed into "all", and then the other entries in ARCHITECTURES
either dropped or rearranged appropriately.
- Provides compatibility script for gcc2 main architecture
- Fixed bug where packages using autotools fails to build with pkgconf,
this is done by folding pkg.m4 back to the main package, causing
pkgconf to directly conflict with pkgconfig
- Folded _pkgconfig subpackage