Recompile:
If you modify the parameters in the files in the GAMIT installation directory, such as some parameter items in libraries/Makefile.config
MAXSIT 80
MAXSAT 40
MAXATM 25
MAXEPC 8640
Need to recompile.
Run ./install_software. That is, recompile and install.
upgrade:
Download the installation package and copy to the installation directory
Run install_updates to install.