Timestamp glitch in 6.4 tarball: gram.y dependencies not committed

I got a note from someone about problems installing Postgres 6.4
on HPUX, one of which was that HP's yacc wouldn't process gram.y
due to table overflow.  That's hardly news ... but a distribution
tarball shouldn't require gram.y to be processed; it should contain
usable output files, no?

Looking into it, I find that the 6.4 tarball contains files with the
following timestamps:

1998-10-29 23:54 postgresql-v6.4/src/backend/parser/gram.c
1998-10-14 11:56 postgresql-v6.4/src/backend/parser/gram.y
1998-09-30 01:48 postgresql-v6.4/src/backend/parser/parse.h

Since parser/Makefile has the dependency

gram.c parse.h: gram.y       $(YACC) $(YFLAGS) $<

the fact that parse.h is back-dated means that installers of 6.4 will
have to process gram.y.

In short, parse.h needs to be 'touch'ed in the repository.

I did that for the REL6_4 branch, but I wanted to raise a flag here
for updaters of the grammar: make sure that parse.h gets committed
when gram.c does.  You may need to use "cvs commit -f" to force a
commit even though parse.h hasn't changed ... that looks to be the
cause of this particular glitch.
        regards, tom lane