commit c252546ceeb0925eb8a4061315e3ff0a8c55b48b
Author: Wayne Davison <wayned@samba.org>
Date:   Tue Oct 24 20:42:41 2017 -0700

    Don't forget to tweak sum_update().

diff --git a/checksum.c b/checksum.c
index 9382694..c119f97 100644
--- a/checksum.c
+++ b/checksum.c
@@ -295,6 +295,7 @@ void sum_update(const char *p, int32 len)
 	  case CSUM_MD4:
 	  case CSUM_MD4_OLD:
 	  case CSUM_MD4_BUSTED:
+	  case CSUM_MD4_ARCHAIC:
 		if (len + sumresidue < CSUM_CHUNK) {
 			memcpy(md.buffer + sumresidue, p, len);
 			sumresidue += len;