gzip xxx (June 2019) parallelized based on Mark Adler's pigz
By: Omid Eghbali, Analisse Reyes, Hengda Shi, Maria Neptune, Siddhartha Bose

Adopted from: 
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pigz 2.4.1x (xx Dec 2017) by Mark Adler

pigz, which stands for Parallel Implementation of GZip, is a fully functional
replacement for gzip that exploits multiple processors and multiple cores to
the hilt when compressing data.

pigz was written by Mark Adler and does not include third-party code. I am
making my contributions to and distributions of this project solely in my
personal capacity, and am not conveying any rights to any intellectual property
of any third parties.

The license from pigz.c is copied here:

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the author be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.

  Mark Adler
  madler@alumni.caltech.edu
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Use information:

Building:
	./bootstrap
	./configure
	make
Running Testcases:
	make check
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High level Overview of Additions:
	~Revamped Optional Handling
	~Improved option functionality with respect to the current verson of gzip
	~Error messages with respect to options made same as gzip
	~GNU Build system
	~Testcases taken from gzip 
	~Additional testcases for backcompatibility with gzip and signaling
	~Code gnuification