Re: [nft PATCH v2 0/2] parser_bison: Get rid of (most) bison compiler warnings

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Hi Pablo,

On Tue, Jul 30, 2019 at 02:41:06PM +0200, Pablo Neira Ayuso wrote:
> On Tue, Jul 23, 2019 at 03:23:11PM +0200, Phil Sutter wrote:
> > Eliminate as many bison warnings emitted since bison-3.3 as possible.
> > Sadly getting bison, flex and automake right is full of pitfalls so on
> > one hand this series does not fix for deprecated %name-prefix statement
> > and on the other passes -Wno-yacc to bison to not complain about POSIX
> > incompatibilities although automake causes to run bison in POSIX compat
> > mode in the first place. Fixing either of those turned out to be
> > non-trivial.
> 
> Indeed, lots of warnings and things to be updated.
> 
> Do you think it's worth fixing those in the midterm?
> 
> We can just place these two small ones in the tree, I'm just concerned
> about tech debt in the midterm, these deprecated stuff might just go
> away.

We should avoid calling bison with -y since the parser simply isn't
POSIX yacc compatible. I found a trick somewhere in WWW to do that (one
has to substitute AC_PROG_YACC) but lost the reference again. But after
doing so, there was a problem with file names I failed to resolve.
Hence why I resorted to just passing -Wno-yacc.

Cheers, Phil



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