--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/curl/packages/OS400/os400sys.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,55 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2013, 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.
+ *
+ *
+ ***************************************************************************/
+
+/* OS/400 additional definitions. */
+
+#ifndef __OS400_SYS_
+#define __OS400_SYS_
+
+
+/* Per-thread item identifiers. */
+
+typedef enum {
+        LK_SSL_ERROR,
+        LK_GSK_ERROR,
+        LK_LDAP_ERROR,
+        LK_CURL_VERSION,
+        LK_VERSION_INFO,
+        LK_VERSION_INFO_DATA,
+        LK_EASY_STRERROR,
+        LK_SHARE_STRERROR,
+        LK_MULTI_STRERROR,
+        LK_ZLIB_VERSION,
+        LK_ZLIB_MSG,
+        LK_LAST
+}               localkey_t;
+
+
+extern char *   (* Curl_thread_buffer)(localkey_t key, long size);
+
+
+/* Maximum string expansion factor due to character code conversion. */
+
+#define MAX_CONV_EXPANSION      4       /* Can deal with UTF-8. */
+
+#endif