Problems with ar(1) and modified objects

[gwyn at brl-vgr.UUCP]

If main() is in the first module in the archive, then just
	cc arch.a
suffices to link everything, since the run-time startoff already has
a reference to the extern main (_main or whatever).  If the archive has
a table of contents (4.?BSD or latest AT&T UNIX), then the module
containing main() need not even be first in the archive.