2007-01-25  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR fortran/30437
fortran/
	* lang.opt (Wall): Remove RejectNegative.
	* options.c (gfc_handle_option): Wall can be disabled.
	(set_Wall): Add a parameter for disabling Wall.
testsuite/	
	* gcc.dg/Wall.c: New.
	* gcc.dg/Wno-all.c: New.
	* gfortran.dg/Wall.f90: New.
	* gfortran.dg/Wno-all.f90: New.

From-SVN: r121186