Large number of fortran testsuite failures

[FX Coudert]

> The problem is between r125620 and r125628 but is NOT, as I  
> suspected, r125621.
>
> Is nobody else seeing it, or is it a Cygwin specific problem?

ia64-linux testresults with rev. 12640 appear to be fine (http:// 
gcc.gnu.org/ml/gcc-testresults/2007-06/msg00572.html).

Doh, wait, it appears that rev. 125624 is the dataflow merge.  
Although it doesn't appear to touch specific cygwin files, it  
certainly is a commit with sufficiently high order-of-magnitude that  
it can disrupt a few seemingly unrelated code paths. Maybe it's worth  
trying to bracket that one? (although I know cygwin bootstrap is  
awfully slow)

FX