Don't depend on patchlevel.h.
diff --git a/Python/pythonmain.c b/Python/pythonmain.c
index 0f8ff02..ccf5bcd 100644
--- a/Python/pythonmain.c
+++ b/Python/pythonmain.c
@@ -26,8 +26,6 @@
 
 #include "allobjects.h"
 
-#include "patchlevel.h"
-
 #include "grammar.h"
 #include "node.h"
 #include "parsetok.h"