Index: mesa-18.1.2/m4/ax_check_python_mako_module.m4
===================================================================
--- mesa-18.1.2.orig/m4/ax_check_python_mako_module.m4
+++ mesa-18.1.2/m4/ax_check_python_mako_module.m4
@@ -48,8 +48,8 @@ try:
 except ImportError as err:
     sys.exit(err)
 else:
-    ver_req = map(int, '$1'.split('.'))
-    ver_act = map(int, mako.__version__.split('.'))
+    ver_req = list(map(int, '$1'.split('.')))
+    ver_act = list(map(int, mako.__version__.split('.')))
     sys.exit(int(ver_req > ver_act))
     " | $PYTHON2 -