Enable the binascii module for Win64. It builds and passes the test suite.
(I had explicitly disabled it a while ago, possibly unecessarily, along with
rgbimg, audioop, and imageop, which are advertised as "not for 64-bit
platforms.)
diff --git a/PC/config.c b/PC/config.c
index e0776fa..6d6a79f 100644
--- a/PC/config.c
+++ b/PC/config.c
@@ -8,8 +8,8 @@
extern void initarray(void);
#ifndef MS_WIN64
extern void initaudioop(void);
-extern void initbinascii(void);
#endif
+extern void initbinascii(void);
extern void initcmath(void);
extern void initerrno(void);
#ifdef WITH_CYCLE_GC
@@ -56,9 +56,7 @@
{"audioop", initaudioop},
#endif
#endif
-#ifndef MS_WIN64
{"binascii", initbinascii},
-#endif
{"cmath", initcmath},
{"errno", initerrno},
#ifdef WITH_CYCLE_GC