2007-05-27  Janne Blomqvist  <jb@gcc.gnu.org>

	* runtime/string.c (compare0): Use gfc_charlen_type instead of int.
	(fstrlen): Likewise.
	(find_option): Likewise.
	(fstrcpy): Use gfc_charlen_type instead of int, return length.
	(cf_strcpy): Likewise.
	* libgfortran.h: Change string prototypes to use gfc_charlen_type.
	* io/open.c (new_unit): Use snprintf if available.
	* io/list_read.c (nml_touch_nodes): Use memcpy instead of strcpy/strcat.
	(nml_read_obj): Likewise.
	* io/transfer.c (st_set_nml_var): Likewise.
	* io/write.c (output_float): Use snprintf if available.
	(nml_write_obj) Use memcpy instead of strcpy/strcat.

From-SVN: r125100