native or not.
Remove a bunch of AC_DEFINE() statements for a previous rpm support checkin
I made (it was not needed). Use MOZ_ instead of MOZILLA_ to be consistent
with the rest of configure.in.
Added build/nsprenv.mk support. Setting the NSPR environment via a file.
This doesnt work yet, since it needs 2 small tweaks to NSPR.
Added support for non native nspr. Not turned on yet. Until NSPR includes
2 small tweaks.
Since comments are free, added a bunch of them.
