* breakpoint.c (breakpoint_re_set): Avoid setting source symtab

(which involves reading in main's symtab) if we have no breakpoints.

gdb/ChangeLog

@@ -1,3 +1,8 @@
+Tue Sep  1 17:31:45 1992  John Gilmore  (gnu@cygnus.com)
+
+	* breakpoint.c (breakpoint_re_set):  Avoid setting source symtab
+	(which involves reading in main's symtab) if we have no breakpoints.
+
 Mon Aug 31 13:47:45 1992  Fred Fish  (fnf@cygnus.com)
 
 	* dwarfread.c (cu_language):  New local variable to record

gdb/breakpoint.c

@@ -2255,9 +2255,16 @@ breakpoint_re_set ()
   static char message1[] = "Error in re-setting breakpoint %d:\n";
   char message[sizeof (message1) + 30 /* slop */];
   
+  /* If we have no current source symtab, and we have any breakpoints,
+     go through the work of making a source context.  */
   if (current_source_symtab == NULL)
     {
-      select_source_symtab (NULL);
+      ALL_BREAKPOINTS (b)
+      {
+	select_source_symtab (NULL);
+	break;				/* We only care if there are any, and
+					   don't need to do it N times.  */
+      }
     }
 
   ALL_BREAKPOINTS_SAFE (b, temp)
@@ -2732,7 +2739,6 @@ fixup_breakpoints (low, high, delta)
   CORE_ADDR delta;
 {
   struct breakpoint *b;
-  extern struct breakpoint *breakpoint_chain;
 
   ALL_BREAKPOINTS (b)
     {