u-config
- According to “personal” “micro”benchmarks, 
u-configis around 1.5x faster thanpkgconfwith a slightly smaller footprint - Does not support 
PKG_CONFIG_SYSROOT_DIRbut seems to setpc_sysrootdirto/insrc/u-config.cby default radstill needs to setPKG_CONFIG_SYSROOT_DIRincrossas we can’t guarantee whatpkg-configimplementation the host is using- Requires 
pkg.m4frompkgconf; otherwise several packages (eiwd,libarchiveandmake) will not build