Marcel Ruff <ruff(at)netwake(dot)com> writes:
> in current 12 branch I get
> make[2]: Verzeichnis „/opt/postgresql/src/backend/parser“ wird betreten
> '/usr/bin/perl' ./check_keywords.pl gram.y
> ../../../src/include/parser/kwlist.h
> /usr/bin/bison -Wno-deprecated -d -o gram.c gram.y
> /usr/bin/bison: invalid option -- 'W'
> Usage: /usr/bin/bison [-dltvyVu] [-b file-prefix] [-p name-prefix]
Hmph. What version of bison are you using?
(exact output of "bison -V" please; also, where'd you get it from)
regards, tom lane