portability fix for bison-1.75

[Kris Kennaway]

On Fri, Jan 20, 2006 at 03:31:14PM -0800, Paul Eggert wrote:
> Kris Kennaway <kris at obsecurity.org> writes:
> 
> > Unfortunately there is a lot of software that cannot be used as-is
> > with the newer version.  This seems to be because the newer versions
> > of bison are not backwards-compatible, which is irritating to say the
> > least.
> 
> That's news to me.  Has anyone filed a bug report about these
> irritating backward-compatibility issues to <bug-bison at gnu.org>?

I don't know about that, but I reran the build of all of our ~160
ports that use bison-1.75, with bison-2.1 instead.

> Possibly the backward-compatibility problems, whatever they were, have
> already been fixed.  In that case I'd still recommend that people not
> use 1.75, as it has some real bugs.

Almost all of the ports built, which is a big improvement over the
last time this was tried - but there are still two failures:

lang/pike70 (ftp://ftp.oav.net/pike/7.0/)

security/bro (ftp://ftp.ee.lbl.gov/)

Perhaps these are the fault of the software depending on old bison
bugs, but until they're both fixed (either by a patch to the software
or a fix to bison) we can't switch any of the ports over to bison-2.1,
since these two bison versions try to install on top of one another,
so users will end up with a random version of bison which may or may
not work.

Kris

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