Re: cvs build failure

Tom Lane wrote:
> Markus Bertheau <twanger(at)bluetwanger(dot)de> writes:
> >> what version of bison are you using? I believe we require 1.875 these days.
>
> > 1.35. I'll upgrade. Thanks.
>
> I believe 'configure' will bleat about a too-old bison, but it won't
> refuse to proceed --- and the warning is easy to miss in the pages of
> output that configure produces.
>
> I was against having configure error out if bison is too old, since
> you might not need it at all (if building from a tarball). But it
> seems like we still have the problem.
>
> Maybe make configure act as though bison is missing? Not sure. It
> seems like that could create unnecessary problems in other cases.

One trick would be to set YACC to some special value like
"bison.too.old" and test for that when YACC is actually called from the
Makefile.

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