Re: Installing Bison from CVS

[Hans Aberg]

On 28 Apr 2007, at 19:58, Joel E. Denny wrote:

> > > If it's using an old version, reinstall Autoconf.
> >
> > I did that, and it did not help.
>
> It worked for me and at least two others, so I recommend you keep  
> trying
> this.  If you're still getting the same error from the command I  
> sent you,
> then Autoconf is surely running an old version of M4.  You need to  
> find a
> way to configure Autoconf to use the right version.

Actually, I have found the error: there is a bug in Autoconf; it uses  
not 'm4' but 'gm4', and later versions of M4 does not install it, it  
seems. So I made a soft link
  /usr/local/bin/gm4 -> /usr/local/bin/m4
and then reinstalled Autoconf with './configure && make && make  
install'. Then
root# `echo 'm4_divert(0)__program__' |  autom4te --language=m4sugar`  
--version
m4 (GNU M4) 1.4.9
...
And Bison '.bootrap now works.

I found this because of your comment, and by running
  autom4te --language=m4sugar
then entering 'm4_divert(0)__program__' at the console; when  
aborting, I got the message that /usr/bin/gm4 is used.

So, in summary, one might keep reinstalling Autoconfig forever :-),  
not fixing the problem. It will work on older systems having this  
soft link gm4 -> m4.

  Hans Aberg