Install GLS

Install GLS - GNU Scientific library

CentOS

yum install gsl-devel

GLS location (library path), CentOS

/usr/bin/gsl-config

/usr/lib64/libgsl.so

/usr/share/aclocal/gsl.m4

°°°

https://centos.pkgs.org/7/centos-x86_64/gsl-devel-1.15-13.el7.x86_64.rpm.html