gcc-core-4.2 does not build after 5/30/2007 snapshot

[Dan Allen]

I usually download and build each week's snapshot of GCC 4.2 on Mac  
OS X (10.4.10).  I unpack just gcc-core-4.2, configure, and it builds  
perfectly.  This process has worked fine for months up until the  
5/30/2007 snapshot.

Starting in June sometime this broke.  It dies early on in libiberty  
cleaning before any compiles have taken place; here is the error string:

        /bin/sh: line 1: cd: testsuite: No such file or directory

Dan Allen