patch, libfortran: Fix a few libgfortran warnings

[Thomas Koenig]

On Thu, 2007-12-20 at 21:09 +0100, Thomas Koenig wrote:

*ping*

> Hello world,
> 
> this fixes a few libgfortran warnings (mismatch of pointer types).
> Regression-tested on i686-pc-linux-gnu.
> 
> OK for trunk?
> 
> 	Thomas
> 
> 2007-12-20  Thomas Koenig  <tkoenig@gcc.gnu.org>
> 
> 	PR libfortran/22423
> 	* intrinsics/pack_generic.c (pack): Change type of mask argument
> 	to gfc_array_l1 * in prototype and function.
> 	(pack_char):  Likewise.
> 	* intrinsics/unpack_generic.c (unpack1):  Likewise.
> 	(unpack1_char):  Likewise.
> 	(unpack0):  Likewise.
> 	(unpack0_char):  Likewise.