--- a/waf
+++ b/waf
@@ -153,6 +153,9 @@
 	return dir
 
 wafdir = find_lib()
+if sys.argv[1:] == ['unpack']:
+    print(wafdir)
+    exit()
 sys.path.insert(0, wafdir)
 from waflib.Tools.c_config import MACRO_TO_DESTOS 
 MACRO_TO_DESTOS['__POWERPC__'] = 'darwin'