Quick 'n dirty hack: Increase the magic by 2 to force a rebuild of pyc/pyo files on the build bots
diff --git a/Python/import.c b/Python/import.c
index b65ed0e..39b3e62 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -80,7 +80,7 @@
/* Magic word as global; note that _PyImport_Init() can change the
value of this global to accommodate for alterations of how the
compiler works which are enabled by command line switches. */
-static long pyc_magic = MAGIC;
+static long pyc_magic = MAGIC+2;
/* See _PyImport_FixupExtension() below */
static PyObject *extensions = NULL;