Updating top-level autoconf to 2.59

[Alexandre Oliva]

On Feb  8, 2007, Michael Eager <eager@eagercon.com> wrote:

> I would much prefer explicitly specifying that the build is cross or
> native.  I want to specify --cross or --native (or the equivalent).

But then, what if you specify --build=X --host=Y --native (with X!=Y)?

Per autoconf docs, --host is supposed to mean --cross.  --native is
the absence of --host.  No room for inconsistencies in options.

-- 
Alexandre Oliva         http://www.lsd.ic.unicamp.br/~oliva/
FSF Latin America Board Member         http://www.fsfla.org/
Red Hat Compiler Engineer   aoliva@{redhat.com, gcc.gnu.org}
Free Software Evangelist  oliva@{lsd.ic.unicamp.br, gnu.org}