add comments about ticky RTS ways

diff --git a/mk/config.mk.in b/mk/config.mk.in
index d1605d1..a489fbf 100644 (file)
--- a/mk/config.mk.in
+++ b/mk/config.mk.in
@@ -341,6 +341,8 @@ endif
 #   debug_u     : debugging unregisterised
 #   thr_debug   : debugging threaded
 #   thr_debug_p : debugging threaded profiled
+#   t          : ticky-ticky profiling
+#   debug_t    : debugging ticky-ticky profiling
 #
 ifeq "$(BootingFromHc)" "YES"
 GhcRTSWays=