Change HAVE_NETTLEHASH compile-time to HAVE_CRYPTOHASH.

HAVE_NETTLEHASH is retained for backwards compatibility, but deprecated.

src/config.h

@@ -120,8 +120,8 @@ HAVE_AUTH
    define this to include the facility to act as an authoritative DNS
    server for one or more zones.
 
-HAVE_NETTLEHASH
-   include just hash function from nettle, but no DNSSEC.
+HAVE_CRYPTOHASH
+   include just hash function from crypto library, but no DNSSEC.
 
 HAVE_DNSSEC
    include DNSSEC validator.
@@ -190,7 +190,7 @@ RESOLVFILE
 /* #define HAVE_IDN */
 /* #define HAVE_LIBIDN2 */
 /* #define HAVE_CONNTRACK */
-/* #define HAVE_NETTLEHASH */
+/* #define HAVE_CRYPTOHASH */
 /* #define HAVE_DNSSEC */
 
 
@@ -424,10 +424,10 @@ static char *compile_opts =
 "no-"
 #endif
 "auth "
-#if !defined(HAVE_NETTLEHASH) && !defined(HAVE_DNSSEC)
+#if !defined(HAVE_CRYPTOHASH) && !defined(HAVE_DNSSEC)
 "no-"
 #endif
-"nettlehash "
+"cryptohash "
 #ifndef HAVE_DNSSEC
 "no-"
 #endif