Clean up some old BFD ansification macros.

* arsup.h, bucomm.h, objdump.h:  Remove EXFUN from binutils.
It still remains as a local macro in gmalloc.c, which is derived
from some other copy of GNU Malloc somewhere (FIXME).

* ar.c, objdump.c, size.c:  Replace EXFUN with PROTO.  Make static
fns really static.
* arsup.h:  Declare extract_files.

binutils/objdump.h

@@ -1,2 +1,21 @@
+/* Object dumper's header file.
+   Copyright 1992 Free Software Foundation, Inc.
 
-int EXFUN(print_address,(bfd_vma, FILE*));
+This file is part of GNU Binutils.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+int
+print_address PARAMS ((bfd_vma, FILE *));