Libiberty parallel build broken

[DJ Delorie]

Done.  You can either commit it to src yourself, or wait an hour and
the automerge will take care of it.

> Here.  Could you commit this?  I have write access to src, but not gcc.
> 
> 2001-11-26  DJ Delorie  <dj@redhat.com>
>             Daniel Jacobowitz  <drow@mvista.com>
> 
> 	* Makefile.in (stamp-h): Depend on Makefile for proper
> 	serialization.
> 	(*-subdir): Depend on config.h for proper serialization.