Re: Bison

[David Fang]

Hi,

> On 12/01/11 06:24, John Calcote wrote:
> > On 01/11/2011 04:31 AM, Russell Shaw wrote:
> > > Hi,
> > > On debian, there is /usr/bin/bison, and
> > > /usr/bin/bison.yacc just does:
> > >
> > >    exec '/usr/bin/bison' -y "$@"
> > >
> > > How can i get autoconf to use bison?
> > >
> > > The problem with yacc is that you can't rename
> > > the output files and always get: y.tab.h y.tab.c
> > >
> > > Is there a way i can get yacc to give better output
> > > file names like myproj.tab.h myproj.tab.c ?
> >
> > Hi Russell - try the techniques listed here:
> > http://www.mail-archive.com/address@hidden/msg01897.html
>
> Hi J.C,
> It's close to what i'm looking for, but not complete enough.
> I'm not good at autoconf stuff. Why is descriptor "5" used?
>
> ac_compile_yacc='$CC -c $CFLAGS $CPPFLAGS $ac_cv_prog_yacc_root.c >&5'

If you're using automake-1.10+, that should provide a YACC variable 
override: ./configure YACC=/my/yacc ...

I've attached my m4 macro for testing whether $YACC is really bison or 
yacc, not just relying on the program name.

automake also provides a helper script 'ylwrap' to deal with yacc/bison 
compilations and do some file renaming.

Fang

David Fang
http://www.csl.cornell.edu/~fang/
http://www.achronix.com/

my_arg_var_yacc.m4
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