With this fix installed (on gcc 2.4.1), things work much better on an
Indigo running IRIX 4.0.5: GDB 4.9 is able to demangle most of my classes
(this, of course, when I specify -ggdb3 to gcc when compiling my programs).


*** gcc/dbxout.c.orig	Fri May 14 00:22:16 1993
--- gcc/dbxout.c	Thu May 20 10:05:53 1993
***************
*** 1108,1115 ****
--- 1108,1118 ----
  		In April 93, mrs@cygnus.com said there is no such problem.
  		The type decls made automatically by struct specifiers
  		are marked with DECL_IGNORED_P in C++.  */
+ #if 0
+ 	    /* This creates output for anonymous classes which confuses GDB. */
  	     && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
  		   && DECL_IGNORED_P (TYPE_NAME (type)))
+ #endif
  	     && !full)
  	    || TYPE_SIZE (type) == 0
  	    /* No way in DBX fmt to describe a variable size.  */

