Two copies of this map meant only the tests would ever work.
 /**
  * base64_maps_rfc4648 - pregenerated maps struct for rfc4648
  */
-static const base64_maps_t base64_maps_rfc4648 = {
+const base64_maps_t base64_maps_rfc4648 = {
   "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
 
   "\xff\xff\xff\xff\xff" /* 0 */                                       \
 
 
 /* the rfc4648 functions: */
 
-static const base64_maps_t base64_maps_rfc4648;
+extern const base64_maps_t base64_maps_rfc4648;
 
 /**
  * base64_encode - Encode a buffer into base64 according to rfc4648