Installer with binaries created using [[Macports][]]. Installs =|/opt/local/bin/swipl|=. Needs [[xquartz][]] (X11) installed for running the [[development tools][]]. Currently, version 2.7.4 is required. You can check the version by opening an X11 application and then checking `about' in the X11 menu. This binary is linked against GMP 5, which implies that it is covered by the LGPL-V3 license. See below.