Add casts to remove compiler warnings from native Sun cc.

gdb/ChangeLog

@@ -1,5 +1,7 @@
 Thu Oct 24 23:06:40 1991  Fred Fish  (fnf at cygnus.com)
 
+	* dwarfread.c:  Add casts to remove compiler warnings.
+
 	* tm-3b1.h, tm-68k.h, tm-altos.h, tm-amix.h, tm-hp300bsd.h,
 	tm-hp300hpux.h, tm-isi.h, tm-news.h, tm-pn.h, tm-sun2.h,
 	tm-sun3.h:  Remove locally duplicated code for calling functions

gdb/dwarfread.c

@@ -3019,7 +3019,7 @@ DEFUN(decode_mod_fund_type, (typedata), char *typedata)
   /* Deduct the size of the fundamental type bytes at the end of the block. */
   modcount -= sizeof (short);
   /* Skip over the two size bytes at the beginning of the block. */
-  modifiers = typedata + sizeof (short);
+  modifiers = (unsigned char *) typedata + sizeof (short);
   /* Now do the actual decoding */
   typep = decode_modified_type (modifiers, modcount, AT_mod_fund_type);
   return (typep);
@@ -3060,7 +3060,7 @@ DEFUN(decode_mod_u_d_type, (typedata), char *typedata)
   /* Deduct the size of the reference type bytes at the end of the block. */
   modcount -= sizeof (long);
   /* Skip over the two size bytes at the beginning of the block. */
-  modifiers = typedata + sizeof (short);
+  modifiers = (unsigned char *) typedata + sizeof (short);
   /* Now do the actual decoding */
   typep = decode_modified_type (modifiers, modcount, AT_mod_u_d_type);
   return (typep);