- (dtucker) [kex.c] Only enable CURVE25519_SHA256 if we actually have

EVP_sha256.

ChangeLog

@@ -21,6 +21,8 @@
  - (dtucker) [openbsd-compat/openbsd-compat.h] Add null implementation of
    arc4random_stir for platforms that have arc4random but don't have
    arc4random_stir (right now this is only OpenBSD -current).
+ - (dtucker) [kex.c] Only enable CURVE25519_SHA256 if we actually have
+   EVP_sha256.
 
 20131107
  - (djm) [ssh-pkcs11.c] Bring back "non-constant initialiser" fix (rev 1.5)

kex.c

@@ -80,7 +80,9 @@ static const struct kexalg kexalgs[] = {
 	{ KEX_ECDH_SHA2_NISTP384, KEX_ECDH_SHA2, NID_secp384r1, EVP_sha384 },
 	{ KEX_ECDH_SHA2_NISTP521, KEX_ECDH_SHA2, NID_secp521r1, EVP_sha512 },
 #endif
+#ifdef HAVE_EVP_SHA256
 	{ KEX_CURVE25519_SHA256, KEX_C25519_SHA256, 0, EVP_sha256 },
+#endif
 	{ NULL, -1, -1, NULL},
 };