Fix the IF_DEBUG(interpreter in StgCRun.c

includes/Rts.h

@@ -258,7 +258,11 @@ TICK_VAR(2)
    -------------------------------------------------------------------------- */
 
 #ifdef DEBUG
+#if IN_STG_CODE
+#define IF_DEBUG(c,s)  if (RtsFlags[0].DebugFlags.c) { s; }
+#else
 #define IF_DEBUG(c,s)  if (RtsFlags.DebugFlags.c) { s; }
+#endif
 #else
 #define IF_DEBUG(c,s)  doNothing()
 #endif

rts/StgCRun.c

@@ -87,13 +87,11 @@ register double fake_f9 __asm__("$f9");
 StgRegTable * StgRun(StgFunPtr f, StgRegTable *basereg STG_UNUSED)
 {
     while (f) {
-        /* XXX Disabled due to RtsFlags[]/RtsFlags mismatch
 	IF_DEBUG(interpreter,
 	    debugBelch("Jumping to ");
 	    printPtr((P_)f); fflush(stdout);
 	    debugBelch("\n");
 	    );
-        */
 	f = (StgFunPtr) (f)();
     }
     return (StgRegTable *)R1.p;