[PATCH 4.5 configury] bump minimum GMP/MPFR to 4.2/2.3.1 respectively

[Mark Mitchell]

Kaveh R. GHAZI wrote:

> 2009-03-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
> 
> 	* configure.ac: Bump minimum GMP/MPFR versions to 4.2 and 2.3.1.
> 
> 	* configure: Regenerate.
> 
> gcc:
> 	* doc/install.texi: Update minimum GMP version.  Remove obsolete
> 	text in MPFR section.

OK.

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
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