* mipsread.c (cross_ref): Set the name to unknown for "struct *" case.

Patch from ptf@delcam.co.uk (Paul Flinders).

gdb/ChangeLog

@@ -1,5 +1,8 @@
 Fri Jul  9 12:36:46 1993  Jim Kingdon  (kingdon@lioth.cygnus.com)
 
+	* mipsread.c (cross_ref): Set the name to unknown for "struct *" case.
+	Patch from ptf@delcam.co.uk (Paul Flinders).
+
 	* a29k-tdep.c, findvar.c (get_saved_register): Fix byteswapping sins.
 
 Fri Jul  9 09:47:02 1993  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

gdb/mipsread.c

@@ -2753,6 +2753,13 @@ cross_ref (ax, tpp, type_code, pname, bigend)
       /* Careful, we might be looking at .o files */
       if (sh.iss == 0)
 	*pname = "<undefined>";
+      else if (rn->rfd == 0xfff && rn->index == 0)
+	/* For structs, unions and enums, rn->rfd is 0xfff and the index
+	   is a relative symbol number for the type, but an index of 0
+	   seems to mean that we don't know.  This is said to fix a problem
+	   with "info func opendir" on an SGI showing
+	   "struct BSDopendir.c *BSDopendir();".  */
+	*pname = "<unknown>";
       else
 	*pname = ecoff_data (cur_bfd)->ss + fh->issBase + sh.iss;