2008-12-18  Daniel Kraft  <d@domob.eu>

	PR fortran/31822
	* gfortran.h (gfc_check_same_strlen): Made public.
	* trans.h (gfc_trans_same_strlen_check): Made public.
	* check.c (gfc_check_same_strlen): Made public and adapted error
	message output to be useful not only for intrinsics.
	(gfc_check_merge): Adapt to gfc_check_same_strlen change.
	* expr.c (gfc_check_pointer_assign): Use gfc_check_same_strlen for
	string length compile-time check.
	* trans-expr.c (gfc_trans_pointer_assignment): Add runtime-check for
	equal string lengths using gfc_trans_same_strlen_check.
	* trans-intrinsic.c (gfc_trans_same_strlen_check): Renamed and made
	public from conv_same_strlen_check.
	(gfc_conv_intrinsic_merge): Adapted accordingly.

2008-12-18  Daniel Kraft  <d@domob.eu>

	PR fortran/31822
	* gfortran.dg/char_pointer_assign_2.f90: Updated expected error message
	to be more detailed.
	* gfortran.dg/char_pointer_assign_4.f90: New test.
	* gfortran.dg/char_pointer_assign_5.f90: New test.

From-SVN: r142808