added the --debug option for the debug build

moo/lib/moo-prv.h

@@ -44,9 +44,12 @@
  * PUSH_CONTEXT, PUSH_INTLIT, PUSH_INTLIT, SEND_BLOCK_COPY */
 #define MOO_USE_MAKE_BLOCK
 
+/* define this to enable karatsuba multiplication in bigint */
+#define MOO_ENABLE_KARATSUBA
+#define MOO_KARATSUBA_CUTOFF 32
+#define MOO_KARATSUBA_CUTOFF_DEBUG 3
+
 #if !defined(NDEBUG)
-/* this is for gc debugging */
-#define MOO_DEBUG_GC 1
 /*#define MOO_DEBUG_LEXER 1*/
 #define MOO_DEBUG_COMPILER 1
 #define MOO_DEBUG_VM_PROCESSOR 1
@@ -55,6 +58,9 @@
 #define MOO_PROFILE_VM 1
 #endif
 
+
+
+
 /* allow the caller to drive process switching by calling
  * moo_switchprocess(). */
 #define MOO_EXTERNAL_PROCESS_SWITCH