Adding XEmacs style --site-prefixes= to configure
Imported from http://bugzilla.roxen.com/bugzilla/show_bug.cgi?id=2597
Reported by @zino
How about adding a --site-prefixes= to configure? XEmacs has one, and it's a lot nicer than using --with-include-path=/prefix/include , --with-lib-path=/prefix/lib and PATH=$PATH:/prefix/bin for each extra installation tree.