GMIN has been tested on most Linux distributions with the nagfor, ifort, pgf90, pathscale, and g77 compilers. Other operating systems are not supported. The source is available as a compressed tarball from URL www-wales.ch.cam.ac.uk/GMIN/.
To install GMIN first uncompress and unpack the tarball. Then, if you are using CMake to build the executables, see the README file within the directory structure you just unpacked. Alternatively, if you are (still) using make, cd to the GMIN/source directory and edit the Makefile to uncomment the options for your chosen compiler. The blocks for other compilers should be commented. After make clean and make this should produce an executable in the GMIN/bin directory.