constification

[exim.git] / src / src / base64.c

diff --git a/src/src/base64.c b/src/src/base64.c
index f3c4584707fae0a6a9bc6fdd3855c3ede3b0985b..289383b66ddd02a9fd80e0a7bff109a9d3c3c97b 100644 (file)
--- a/src/src/base64.c
+++ b/src/src/base64.c
@@ -242,7 +242,7 @@ static uschar *enc64table =
   US"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
 uschar *
-b64encode(uschar *clear, int len)
+b64encode(const uschar * clear, int len)
 {
 uschar *code = store_get(4*((len+2)/3) + 1);
 uschar *p = code;