Externals: Add libcurl.

Externals/curl/lib/curl_md4.h

@@ -0,0 +1,35 @@
+#ifndef HEADER_CURL_MD4_H
+#define HEADER_CURL_MD4_H
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+
+#include "curl_setup.h"
+
+/* NSS and OS/400 crypto library do not provide the MD4 hash algorithm, so
+ * that we have a local implementation of it */
+#if defined(USE_NSS) || defined(USE_OS400CRYPTO)
+
+void Curl_md4it(unsigned char *output, const unsigned char *input, size_t len);
+
+#endif /* defined(USE_NSS) || defined(USE_OS400CRYPTO) */
+
+#endif /* HEADER_CURL_MD4_H */