Fix NULL ptr issue.
@@ -496,7 +496,7 @@ static int macroexpand1(
return 0;
/* Evaluate macro */
- JanetFiber *fiberp;
+ JanetFiber *fiberp = NULL;
JanetFunction *macro = janet_unwrap_function(macroval);
int lock = janet_gclock();
JanetSignal status = janet_pcall(
