Re: small depcomp patch

[Tom Tromey]

>>>>> "Ryan" == Ryan T Sammartino <address@hidden> writes:

Ryan> With MS VCrap++, if you use the /Gm, /Gi or /ZI options, it uses
Ryan> some .idb file to do whatever it is these options do.
Ryan> Unfortunately, depcomp launches two cl's... one to do
Ryan> dependencies, and one to do the actual compiling, and one gets a
Ryan> lock on these .idb files that causes the other to fail.  If the
Ryan> compiling one doesn't get a lock on that file first, your
Ryan> compile will fail.  To remedy the problem the following patch
Ryan> removes any of the above options from the preprocess step so
Ryan> that the preprocessor doesn't try to lock these silly .idb
Ryan> files.

What do these options do?
Would it be more correct for us to simply run the two compilations
serially rather than in parallel?

Tom