mainline AIX bootstrap broken in libstdc++-v3 (Also in darwin)

[David Edelsohn]

	I bootstrapped successfully last night.  I need to use a
pre-release version of the AIX assembler and archiver, but the symptoms of
that problem are "as" getting into an endless loop.  I do not see any
problem building libstdc++-v3.

	Please make sure that no files have CVS tags in your checkout by
using "cvs update -A" to clear tags.

David