[commit/sim] switch autoconf 2.59

[Daniel Jacobowitz]

On Fri, Jan 07, 2005 at 10:39:17PM -0500, Andrew Cagney wrote:
> Same as for gdb, built on ppc (native, sim/ppc built) and amd64.  This 
> patch includes some AC_CONFIG_SUBDIRS changes to sim/configure as they 
> turn out to be incompatible with autoconf 2.13.

FYI, I remember that Maciej reported a bug in autoconf 2.59 that caused
sim/common/configure to break - something to do with AC_REQUIRE,
probably a macro expanding inside a shell conditional when it
shouldn't.  He doesn't seem to have posted any details that I can find.

Just a heads up in case the bug still manifests.  Thanks for doing
this!

-- 
Daniel Jacobowitz