Customizing the Makefile
=========================
You need the file gmp-impl.h which sits in the include directory of GMP.
And you need to define GMPDIR properly.

Other variables may be changed at your own risks.

Compile
========
make

Tests
======
./bin/testgcd -recette gcd -algo euclid

For more information
./bin/testgcd -recette gcd -algo euclid -verbose 1

Then replace euclid by jebelean, thullyap.

Alternatively, run
make slowgcdtests
make thullyaptests ## covering tests

Benchmarks
===========
make gcdbenchmarks

Changes
=======
2022.08.31b
-----------
- fixed stupid bug in test_gcd with option gmp (thanks to MMezzaroba)

2022.08.31a
-----------
- fixed include pb (thanks to MMezzaroba)

2022.07.21a
------------
- A lot less bugs.
- Faster; new threshold.
- Still some optimizations to be tried next.
