sys.path instead of assuming __file__ works.

This broke cPickle.

idea how this is used, really.

(Sorry Jack, all your projects will have to be changed again. :-( )

By Aaron Watters.

in the build tree, when the current directory is the build tree root.

size of uploads to POST (new version of these patches).

This silences some compilers.

No idea if this actually works...

Still have to find a way to add symbols that *are* defined...

Solaris and Linux: use os.O_NONBLOCK.

searches /usr/local, /usr and /.

would always be a hit.   Prevent this by only using VPATH if we know
we are in the build directory.

otherwise laudible attempt to rationalize the argument parsing): it
would save a copy of the original string instead of a reference to it.
Go back to saving a reference, but keep the "s#" format (using a hack
that involves two argument parsing steps, first using "O", then using
"s#").