Fix build without openssl sslv2

from brad

net/neon/Makefile

@@ -1,9 +1,9 @@
-# $OpenBSD: Makefile,v 1.29 2012/06/16 09:01:29 ajacoutot Exp $
+# $OpenBSD: Makefile,v 1.30 2012/06/27 12:10:19 jasper Exp $
 
 COMMENT=		HTTP and WebDAV client library, with C interface
 
 DISTNAME=		neon-0.29.6
-REVISION=		0
+REVISION=		1
 SHARED_LIBS=		neon    28.0 # 29.6
 CATEGORIES=     	net www devel
 

net/neon/patches/patch-src_ne_openssl_c

@@ -0,0 +1,20 @@
+$OpenBSD: patch-src_ne_openssl_c,v 1.3 2012/06/27 12:10:19 jasper Exp $
+
+Allow building against OpenSSL without SSLv2 support.
+
+--- src/ne_openssl.c.orig	Wed Jun 27 07:35:42 2012
++++ src/ne_openssl.c	Wed Jun 27 07:47:58 2012
+@@ -569,8 +569,13 @@ ne_ssl_context *ne_ssl_context_create(int mode)
+         ctx->ctx = SSL_CTX_new(SSLv23_server_method());
+         SSL_CTX_set_session_cache_mode(ctx->ctx, SSL_SESS_CACHE_CLIENT);
+     } else {
++#ifdef OPENSSL_NO_SSL2
++        ne_free(ctx);
++        return NULL;
++#else
+         ctx->ctx = SSL_CTX_new(SSLv2_server_method());
+         SSL_CTX_set_session_cache_mode(ctx->ctx, SSL_SESS_CACHE_CLIENT);
++#endif
+     }
+     return ctx;
+ }