minor changes

src/tyvm.c

@@ -4,6 +4,8 @@
     Open-source software distributed under MIT license
 */
 
+#define __UNIX
+
 #include "includes.h"
 #include "registers.h"
 
@@ -370,4 +372,4 @@ int main(int argc, const char* argv[]) {
         }
     }
     restore_input_buffering();  //restore terminal settings when shutdown
-}
+}