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+#ifndef __CARES_BUILD_H
+#define __CARES_BUILD_H
+
+
+/* Copyright (C) 2009 by Daniel Stenberg et al
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. M.I.T. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+/* ================================================================ */
+/* NOTES FOR CONFIGURE CAPABLE SYSTEMS */
+/* ================================================================ */
+
+/*
+ * NOTE 1:
+ * -------
+ *
+ * Nothing in this file is intended to be modified or adjusted by the
+ * c-ares library user nor by the c-ares library builder.
+ *
+ * If you think that something actually needs to be changed, adjusted
+ * or fixed in this file, then, report it on the c-ares development
+ * mailing list: http://cool.haxx.se/mailman/listinfo/c-ares/
+ *
+ * This header file shall only export symbols which are 'cares' or 'CARES'
+ * prefixed, otherwise public name space would be polluted.
+ *
+ * NOTE 2:
+ * -------
+ *
+ * Right now you might be staring at file ares_build.h.in or ares_build.h,
+ * this is due to the following reason:
+ *
+ * On systems capable of running the configure script, the configure process
+ * will overwrite the distributed ares_build.h file with one that is suitable
+ * and specific to the library being configured and built, which is generated
+ * from the ares_build.h.in template file.
+ *
+ */
+
+/* ================================================================ */
+/* DEFINITION OF THESE SYMBOLS SHALL NOT TAKE PLACE ANYWHERE ELSE */
+/* ================================================================ */
+
+#ifdef CARES_TYPEOF_ARES_SOCKLEN_T
+# error "CARES_TYPEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
+ Error Compilation_aborted_CARES_TYPEOF_ARES_SOCKLEN_T_already_defined
+#endif
+
+/* ================================================================ */
+/* EXTERNAL INTERFACE SETTINGS FOR CONFIGURE CAPABLE SYSTEMS ONLY */
+/* ================================================================ */
+
+/* Configure process defines this to 1 when it finds out that system */
+/* header file ws2tcpip.h must be included by the external interface. */
+#undef CARES_PULL_WS2TCPIP_H
+#ifdef CARES_PULL_WS2TCPIP_H
+# ifndef WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+# endif
+# include <windows.h>
+# include <winsock2.h>
+# include <ws2tcpip.h>
+#endif
+
+/* Configure process defines this to 1 when it finds out that system */
+/* header file sys/types.h must be included by the external interface. */
+#undef CARES_PULL_SYS_TYPES_H
+#ifdef CARES_PULL_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+/* Configure process defines this to 1 when it finds out that system */
+/* header file sys/socket.h must be included by the external interface. */
+#undef CARES_PULL_SYS_SOCKET_H
+#ifdef CARES_PULL_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+
+/* Integral data type used for ares_socklen_t. */
+#undef CARES_TYPEOF_ARES_SOCKLEN_T
+
+/* Data type definition of ares_socklen_t. */
+typedef CARES_TYPEOF_ARES_SOCKLEN_T ares_socklen_t;
+
+#endif /* __CARES_BUILD_H */