Rod Taylor <rbt@rbt.ca> writes:
> Updated to tag REL7_2_4 on FreeBSD 4.7 and cannot compile it. gram.y
> errors complaining: invalid character: ','.
> bash-2.05b$ bison --version
> bison (GNU Bison) 1.75
We just had that discussion on pgcore. The 7.2 grammar was developed
against bison 1.28; it works with warnings against bison 1.35, but bison
1.75 just flat rejects it (not for any significant reason, but just
because they decided to get anal-retentive about whether they'd allow
commas in keyword lists).
We could update the 7.2 grammar and compile it with the latest bison,
but we were worried about whether we might introduce any subtle problems
if we did. The 7.2 branch has received zero testing with bison 1.75.
ISTM that the eve of what'll probably be our last dot-release for 7.2
is not the time to drop a new bison into its toolchain.
regards, tom lane