1 files changed, 8 insertions, 0 deletions
diff --git a/puzzles.h b/puzzles.h
index 4de81a7..d0882e3 100644
--- a/puzzles.h
+++ b/puzzles.h
@@ -200,6 +200,14 @@ struct game {
 };
 
 /*
+ * Here we include the knowledge of which platforms are of which
+ * type.
+ */
+#ifdef MAC_OS_X   /* this must be defined in the OS X Makefile */
+#define COMBINED
+#endif
+
+/*
  * For one-game-at-a-time platforms, there's a single structure
  * like the above, under a fixed name. For all-at-once platforms,
  * there's a list of all available puzzles in array form.