Update GMP/MPFR build instructions for SPARC/Solaris

[Kaveh R. GHAZI]

On Thu, 2 Nov 2006, Eric Botcazou wrote:

> Tested with 'make doc', applied to all active branches.
>
>
> 2006-11-02  Eric Botcazou  <ebotcazou@libertysurf.fr>
>
> 	* doc/install.texi (sparc-sun-solaris2*): Update GMP/MPFR build
> 	instructions.
> 	(sparc64-sun-solaris2*): Likewise.
>

Are the instructions requiring the user to supply a --build=system still
necessary?  What bug is it supposed to solve?  I didn't do that and
gmp-4.2.1 works fine (passed all it's self tests.)

		--Kaveh
--
Kaveh R. Ghazi			ghazi@caip.rutgers.edu