* configure.ac (MPFR check): Bump minimum version to 2.3.0 and
	recommended version to 2.3.2.

	* configure: Regenerate.

gcc:
	* builtins.c: Remove MPFR_VERSION_NUM(2,3,0) conditionals.
	* doc/install.texi: Bump recommended MPFR to 2.3.2.
	
fortran:
	* simplify.c: Remove MPFR_VERSION_NUM(2,3,0) conditionals.

From-SVN: r141085