\begin{code}
#include "rtsdefs.h"
-#include "storage/SMinternal.h" /* DEFAULT_* here */
-I_ SM_word_heap_size = DEFAULT_HEAP_SIZE;
-StgFloat SM_pc_free_heap = DEFAULT_PC_FREE;
-I_ SM_word_stk_size = DEFAULT_STACKS_SIZE;
+void
+defaultsHook (void)
+{ /* this is called *after* RTSflags has had
+ its defaults set, but *before* we start
+ processing the RTS command-line options.
+
+ This default version does *nothing*.
+ The user may provide a more interesting
+ one.
+ */
+}
\end{code}