--- ./src/base64.c.old	2018-02-08 15:22:40.000000000 +0200
+++ ./src/base64.c	2018-03-16 09:03:42.352846953 +0200
@@ -249,7 +249,7 @@
 
 while (len-- >0)
   {
-  register int x, y;
+  int x, y;
 
   x = *clear++;
   *p++ = enc64table[(x >> 2) & 63];