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diff --git a/3rdparty/plibsys/src/pfile.h b/3rdparty/plibsys/src/pfile.h
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+/*
+ * The MIT License
+ *
+ * Copyright (C) 2010-2016 Alexander Saprykin <saprykin.spb@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * 'Software'), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * @file pfile.h
+ * @brief File operations
+ * @author Alexander Saprykin
+ *
+ * To check file existance use p_file_is_exists(). To remove an exisiting file
+ * use p_file_remove().
+ *
+ * #P_DIR_SEPARATOR provides a platform independent directory separator symbol
+ * which you can use to form file or directory path.
+ */
+
+#if !defined (PLIBSYS_H_INSIDE) && !defined (PLIBSYS_COMPILATION)
+#  error "Header files shouldn't be included directly, consider using <plibsys.h> instead."
+#endif
+
+#ifndef PLIBSYS_HEADER_PFILE_H
+#define PLIBSYS_HEADER_PFILE_H
+
+#include <pmacros.h>
+#include <ptypes.h>
+#include <perror.h>
+
+/**
+ * @def P_DIR_SEPARATOR
+ * @brief A directory separator.
+ */
+#if defined (P_OS_WIN) || defined (P_OS_OS2)
+#  define P_DIR_SEPARATOR "\\"
+#else
+#  define P_DIR_SEPARATOR "/"
+#endif
+
+P_BEGIN_DECLS
+
+/**
+ * @brief Checks whether a file exists or not.
+ * @param file File name to check.
+ * @return TRUE if the file exists, FALSE otherwise.
+ * @since 0.0.1
+ *
+ * On Windows this call doesn't resolve symbolic links, while on UNIX systems
+ * does.
+ */
+P_LIB_API pboolean p_file_is_exists	(const pchar	*file);
+
+/**
+ * @brief Removes a file from the disk.
+ * @param file File name to remove.
+ * @param[out] error Error report object, NULL to ignore.
+ * @return TRUE if the file was successully removed, FALSE otherwise.
+ * @since 0.0.1
+ *
+ * This call doesn't resolve symbolic links and remove a symbolic link if the
+ * given path points to it.
+ */
+P_LIB_API pboolean p_file_remove	(const pchar	*file,
+					 PError		**error);
+
+P_END_DECLS
+
+#endif /* PLIBSYS_HEADER_PFILE_H */