- Remove USE_AUTOTOOLS=libtool:env
- Depend on libX11 instead of libXext
- Minor tweaks
- Switch to USES=libtool:build
- Remove old CFLAGS
- USE_PERL=fixpacklist, otherwise .packlist references staging directory
- Update python-related variables
- Add missing plist files and sort plist
- Install pkgconfig file into correct location

PR:		193559
Submitted by:	amdmi3
Approved by:	decke (maintainer)
Don't hardcode absolute path in CFLAGS