Chris Browne <cbbrowne(at)acm(dot)org> writes:
> If I touch preproc.y and pgc.l, the .c files get regenerated, and all
> is well.
> If I don't, they get left alone, and I see compilation errors.
> It seems to me you need to rebuild the C files and commit them.
No, because those derived files are not in CVS at all. What you
are describing sounds to me like a clock skew problem. Is your
machine's system clock showing the correct date?
regards, tom lane