sam2p.exe: Portable Windows (Win32) executable.
sam2p.xstatic: Portable, statically linked Linux (i386) executable.
sam2p.darwinc32: Portable, 32-bit macOS (10.5 or later) executable.
sam2p.darwinc64: Portable, 64-bit macOS (10.5 or later) executable.
sam2p-0.49.4.tar.gz: Source code.
*.deb: (Will be added later.) Packages which work on any Ubuntu 4.10 or newer and Debian 3.0 or newer. They don't need a libc.
For PNG input files in sam2p, you also need png22pnm, get it from here: https://github.com/pts/tif22pnm/releases