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diff --git a/win/sys/mman.h b/win/sys/mman.h
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+++ b/win/sys/mman.h
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+/*
+ This file is part of the KDE libraries
+ Copyright (C) 2004 Jaroslaw Staniek <js@iidea.pl>
+
+ These sources are based on ftp://g.oswego.edu/pub/misc/malloc.c
+ file by Doug Lea, released to the public domain.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License version 2 as published by the Free Software Foundation.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+#ifndef _MMAP_H
+#define _MMAP_H
+
+#include <kdecore/kdelibs_export.h>
+
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* These values don't really matter in windows mmap emulation */
+#define PROT_NONE 0
+#define PROT_READ 1
+#define PROT_WRITE 2
+#define PROT_EXEC 4
+
+#define MAP_FILE 0
+#define MAP_SHARED 1
+#define MAP_PRIVATE 2
+#define MAP_TYPE 0xF
+#define MAP_FIXED 0x10
+#define MAP_ANONYMOUS 0x20
+#define MAP_ANON MAP_ANONYMOUS
+
+#define MAP_FAILED ((void *)-1)
+
+KDEWIN32_EXPORT void * mmap(void *start, size_t length, int prot , int flags, int fd, off_t offset);
+
+KDEWIN32_EXPORT int munmap(void *start, size_t length);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif