text: /**
      4MC
      Copyright (c) 2014, Carlo Medas
      BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
  
      Redistribution and use in source and binary forms, with or without modification,
      are permitted provided that the following conditions are met:
  
      * Redistributions of source code must retain the above copyright notice, this
        list of conditions and the following disclaimer.
  
      * Redistributions in binary form must reproduce the above copyright notice, this
        list of conditions and the following disclaimer in the documentation and/or
        other materials provided with the distribution.
  
      THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
      ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
      WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
      DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
      ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
      (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
      LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
      ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
      SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
    You can contact 4MC author at :
        - 4MC source repository : https://github.com/carlomedas/4mc
  
    LZ4 - Copyright (C) 2011-2014, Yann Collet - BSD 2-Clause License.
    You can contact LZ4 lib author at :
        - LZ4 source repository : http://code.google.com/p/lz4/
  **/
  
  
  int fourMCcompressFilename  (int displayLevel, int overwrite, char* input_filename, char* output_filename, int compressionlevel);
  int fourMcDecompressFileName(int displayLevel, int overwrite, char* input_filename, char* output_filename);
  
  
  int fourMZcompressFilename  (int displayLevel, int overwrite, char* input_filename, char* output_filename, int compressionlevel);
  int fourMZDecompressFileName(int displayLevel, int overwrite, char* input_filename, char* output_filename);
  
  // null device, stdin and stdout, used by both cli and 4mc
  
  #define NULL_OUTPUT "null"
  static char stdinmark[] = "stdin";
  static char stdoutmark[] = "stdout";
  #ifdef _WIN32
  static char nulmark[] = "nul";
  #else
  static char nulmark[] = "/dev/null";
  #endif
  
  