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+/*
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+ This file is part of libmicrohttpd
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+ Copyright (C) 2016 Karlson2k (Evgeny Grin)
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+
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+ This library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ This library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with this library; if not, write to the Free Software
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+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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+*/
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+
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+/**
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+ * @file microhttpd/mhd_options.h
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+ * @brief additional automatic macros for MHD_config.h
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+ * @author Karlson2k (Evgeny Grin)
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+ *
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+ * This file includes MHD_config.h and adds automatic macros based on values
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+ * in MHD_config.h, compiler built-in macros and commandline-defined macros
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+ * (but not based on values defined in other headers). Works also as a guard
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+ * to prevent double inclusion of MHD_config.h
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+ */
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+
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+#ifndef MHD_OPTIONS_H
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+#define MHD_OPTIONS_H 1
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+
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+#include "MHD_config.h"
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+
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+
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+#ifndef _MHD_EXTERN
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+#if defined(BUILDING_MHD_LIB) && defined(_WIN32) && \
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+ (defined(DLL_EXPORT) || defined(MHD_W32DLL))
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+#define _MHD_EXTERN __declspec(dllexport) extern
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+#else /* !BUILDING_MHD_LIB || !_WIN32 || (!DLL_EXPORT && !MHD_W32DLL) */
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+#define _MHD_EXTERN extern
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+#endif /* !BUILDING_MHD_LIB || !_WIN32 || (!DLL_EXPORT && !MHD_W32DLL) */
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+#endif /* ! _MHD_EXTERN */
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+
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+/* Some platforms (FreeBSD, Solaris, W32) allow to override
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+ default FD_SETSIZE by defining it before including
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+ headers. */
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+#ifdef FD_SETSIZE
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+/* FD_SETSIZE defined in command line or in MHD_config.h */
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+/* Use function to retrieve system default FD_SETSIZE value. */
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+#define _MHD_SYS_DEFAULT_FD_SETSIZE get_system_fdsetsize_value()
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+#elif defined(_WIN32) && !defined(__CYGWIN__)
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+/* Platform with WinSock and without overridden FD_SETSIZE */
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+#define FD_SETSIZE 2048 /* Override default small value */
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+/* Use function to retrieve system default FD_SETSIZE value. */
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+#define _MHD_SYS_DEFAULT_FD_SETSIZE get_system_fdsetsize_value()
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+#else /* !FD_SETSIZE && !WinSock*/
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+/* System default value of FD_SETSIZE is used */
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+#define _MHD_SYS_DEFAULT_FD_SETSIZE FD_SETSIZE
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+#define _MHD_FD_SETSIZE_IS_DEFAULT 1
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+#endif /* !FD_SETSIZE && !WinSock*/
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+
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+#define _XOPEN_SOURCE_EXTENDED 1
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+#if OS390
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+#define _OPEN_THREADS
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+#define _OPEN_SYS_SOCK_IPV6
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+#define _OPEN_MSGQ_EXT
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+#define _LP64
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+#endif
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+
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+#if defined(_WIN32)
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+#ifndef _WIN32_WINNT
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+#define _WIN32_WINNT 0x0501
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+#else /* _WIN32_WINNT */
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+#if _WIN32_WINNT < 0x0501
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+#error "Headers for Windows XP or later are required"
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+#endif /* _WIN32_WINNT < 0x0501 */
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+#endif /* _WIN32_WINNT */
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+#ifndef WIN32_LEAN_AND_MEAN
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+/* Do not include unneeded parts of W32 headers. */
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+#define WIN32_LEAN_AND_MEAN 1
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+#endif /* !WIN32_LEAN_AND_MEAN */
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+#endif /* _WIN32 */
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+
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+#if LINUX+0 && (defined(HAVE_SENDFILE64) || defined(HAVE_LSEEK64)) && ! defined(_LARGEFILE64_SOURCE)
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+/* On Linux, special macro is required to enable definitions of some xxx64 functions */
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+#define _LARGEFILE64_SOURCE 1
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+#endif
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+
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+#ifdef HAVE_C11_GMTIME_S
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+/* Special macro is required to enable C11 definition of gmtime_s() function */
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+#define __STDC_WANT_LIB_EXT1__ 1
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+#endif /* HAVE_C11_GMTIME_S */
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+
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+#endif /* MHD_OPTIONS_H */
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Evgeny Grin (Karlson2k)