Re: Installing Bison from CVS

[Joel E. Denny]

On Sat, 28 Apr 2007, Hans Aberg wrote:

> > The last couple of times this came up, it was due to an old M4.  For
> > example, Autoconf 2.61 requires at least M4 1.4.7.
> 
> I updates M4 from 1.4.7 to 1.4.9, and the problem persisted. I use Autoconf
> 2.61. (I also updated to Automake 1.9.6.) I checked versions (using --version)
> from the console I ran ./bootstrap (as root).

To find out which version of M4 Autoconf is using:

  `echo 'm4_divert(0)__program__' |  autom4te --language=m4sugar` --version

If it's using an old version, reinstall Autoconf.