Changes #elseifdef for #elif defined()
#include "getset.h"
#include "picoquic_logger.h"
-#ifdef NS3
+#if defined(NS3)
#define JIT false
-#elseifdef __APPLE__
+#elif defined(__APPLE__)
#define JIT false
#else
#define JIT true /* putting to false show out of memory access */
