// pkgutils
//
// Copyright (c) 2000-2005 Per Liden
+// Copyright (c) 2006-2007 by CRUX team (http://crux.nu)
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
void assert_argument(char** argv, int argc, int index);
string itos(unsigned int value);
string mtos(mode_t mode);
-int unistd_gzopen(char* pathname, int flags, mode_t mode);
string trim_filename(const string& filename);
bool file_exists(const string& filename);
bool file_empty(const string& filename);