Index: breakpoint.c
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.c,v
retrieving revision 1.443
diff -u -p -r1.443 breakpoint.c
--- breakpoint.c	30 Dec 2009 17:33:33 -0000	1.443
+++ breakpoint.c	30 Dec 2009 19:13:44 -0000
@@ -3174,7 +3174,10 @@ watchpoints_triggered (struct target_wai
 #define BP_TEMPFLAG 1
 #define BP_HARDWAREFLAG 2
 
-/* Evaluate watchpoint condition expression and check if its value changed.  */
+/* Evaluate watchpoint condition expression and check if its value changed.
+
+   P should be a pointer to struct bpstat, but is defined as a void *
+   in order for this function to be usable with catch_errors.  */
 
 static int
 watchpoint_check (void *p)