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diff --git a/src/libswift/compat.h b/src/libswift/compat.h
new file mode 100644
index 0000000..0604bb4
--- /dev/null
+++ b/src/libswift/compat.h
@@ -0,0 +1,167 @@
+/*
+ *  compat.h
+ *  compatibility wrappers
+ *
+ *  Created by Arno Bakker, Victor Grishchenko
+ *  Copyright 2009-2012 TECHNISCHE UNIVERSITEIT DELFT. All rights reserved.
+ *
+ */
+#ifndef SWIFT_COMPAT_H
+#define SWIFT_COMPAT_H
+
+#ifdef _MSC_VER
+typedef unsigned char uint8_t;
+typedef signed char int8_t;
+typedef unsigned short uint16_t;
+typedef short int16_t;
+typedef unsigned int uint32_t;
+typedef int int32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+#else
+#include <stdint.h>
+#endif
+
+#ifdef _WIN32
+#include <winsock2.h>
+#include <sys/stat.h>
+#include <io.h>
+#include <xutility> // for std::min/max
+#else
+#include <sys/mman.h>
+#include <arpa/inet.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#endif
+
+#include <fcntl.h>
+#include <cstdio>
+#include <cstdlib>
+#include <string>
+#include <errno.h>
+
+#ifdef _MSC_VER
+#include "getopt_win.h"
+#else
+#include <getopt.h>
+#endif
+
+#ifdef _WIN32
+#define open(a,b,c)    _open(a,b,c)
+#define strcasecmp	   stricmp
+#define strtok_r	   strtok_s
+#define stat(a,b)      _stat(a,b)
+#endif
+#ifndef S_IRUSR
+#define S_IRUSR _S_IREAD
+#endif
+#ifndef S_IWUSR
+#define S_IWUSR _S_IWRITE
+#endif
+#ifndef S_IRGRP
+#define S_IRGRP _S_IREAD
+#endif
+#ifndef S_IROTH
+#define S_IROTH _S_IREAD
+#endif
+
+#ifdef _WIN32
+typedef char* setsockoptptr_t;
+typedef int socklen_t;
+#else
+typedef void* setsockoptptr_t;
+#endif
+
+// libevent2 assumes WIN32 is defined
+#ifdef _WIN32
+#define WIN32	_WIN32
+#endif
+#include <event2/util.h>
+
+#ifndef _WIN32
+#define INVALID_SOCKET -1
+#endif
+
+#ifndef LONG_MAX
+#include <limits>
+#define LONG_MAX	numeric_limits<int>::max()
+#endif
+
+#ifdef _WIN32
+// log2 is C99 which is not fully supported by MS VS
+#define log2(x)		(log(x)/log(2.0))
+#endif
+
+
+// Arno, 2012-01-05: Handle 64-bit size_t & printf+scanf
+#if SIZE_MAX > UINT_MAX
+#define PRISIZET		"%llu"
+#else
+#define PRISIZET	"%lu"
+#endif
+
+namespace swift {
+
+/** tint is the time integer type; microsecond-precise. */
+typedef int64_t tint;
+#define TINT_HOUR ((swift::tint)1000000*60*60)
+#define TINT_MIN ((swift::tint)1000000*60)
+#define TINT_SEC ((swift::tint)1000000)
+#define TINT_MSEC ((swift::tint)1000)
+#define TINT_uSEC ((swift::tint)1)
+#define TINT_NEVER ((swift::tint)0x3fffffffffffffffLL)
+
+#ifdef _WIN32
+#define tintabs	_abs64
+#else
+#define tintabs	::abs
+#endif
+
+
+#ifndef _WIN32
+#define TCHAR	char
+#endif
+
+
+int64_t  file_size (int fd);
+
+int     file_seek (int fd, int64_t offset);
+
+int     file_resize (int fd, int64_t new_size);
+
+void*   memory_map (int fd, size_t size=0);
+void    memory_unmap (int fd, void*, size_t size);
+
+void    print_error (const char* msg);
+
+#ifdef _WIN32
+
+/** UNIX pread approximation. Does change file pointer. Is not thread-safe */
+size_t  pread(int fildes, void *buf, size_t nbyte, __int64 offset); // off_t not 64-bit dynamically on Win32
+
+/** UNIX pwrite approximation. Does change file pointer. Is not thread-safe */
+size_t  pwrite(int fildes, const void *buf, size_t nbyte, __int64 offset);
+
+int     inet_aton(const char *cp, struct in_addr *inp);
+
+#endif
+
+std::string gettmpdir(void);
+
+tint    usec_time ();
+
+bool    make_socket_nonblocking(evutil_socket_t s);
+
+bool    close_socket (evutil_socket_t sock);
+
+struct timeval* tint2tv (tint t);
+
+
+};
+
+#endif
+