Add Music Manager's curl 7.21.2 source.

Change-Id: I259a43fa52d581524a5ce8ae1711467acb1d9d50
diff --git a/lib/curl_gethostname.h b/lib/curl_gethostname.h
new file mode 100644
index 0000000..b8ecf88
--- /dev/null
+++ b/lib/curl_gethostname.h
@@ -0,0 +1,27 @@
+#ifndef HEADER_CURL_GETHOSTNAME_H
+#define HEADER_CURL_GETHOSTNAME_H
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2010, 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 http://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.
+ *
+ ***************************************************************************/
+
+int Curl_gethostname(char *name, GETHOSTNAME_TYPE_ARG2 namelen);
+
+#endif /* HEADER_CURL_GETHOSTNAME_H */