Change system path variable to PKG_CONFIG_SYSTEM_PATH
Submitted by Dan Nicholson
Assigned to pkg..@..op.org
PKG_CONFIG_LIBDIR overrides the builtin pkg-config path, but you'd never know it from the name. Not only does it not say it's a path variable, but the standard path has also include a datadir arch-independent directory for years.
I propose to change this to PKG_CONFIG_SYSTEM_PATH, silently accepting PKG_CONFIG_LIBDIR for compatibility.