* symtab.c, symfile.c, c-exp.y, ch-exp.y, m2-exp.y, buildsym.c,

symfile.h, stabsread.c, minsyms.c, solib.c, nlmread.c, dwarfread.c
	partial-stab.h, symmisc.c, gdbtypes.c: Lint.  Remove (or put
	inside #if) unused variables and labels.  Fix unclosed comment.
	Deal with enumeration values unhandled in switch statements.  Make
	sure non-void functions return values.  Include appropriate
	headers.
	* dbxread.c (elfstab_build_psymtabs): Don't check for unsigned
	value < 0.

gdb/partial-stab.h

@@ -286,7 +286,9 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 	      continue;
 	  }
 
+#ifdef DBXREAD_ONLY
 	record_include_file:
+#endif
 
 	  psymtab_include_list[includes_used++] = namestring;
 	  if (includes_used >= includes_allocated)