This is a native port of Lotus 1-2-3 version 3 to Linux. This is possible because the official Lotus 1-2-3 for UNIX port used a technique called partial linking to workaround a technical limitation in early UNIX systems. Surprisingly, that can be used to modify it to support new platforms.

There's an article documenting how this is possible here.

First, you need a version of binutils that is compiled with coff-i386 target support. You can check like this:

$ objdump --info | grep coff-i386

Note: Most distributions do not enable this for some reason.

Secondly, you need a copy of Lotus 1-2-3 for UNIX, you can download it here. Just place the raw disk images in the build directory and run extract.sh.

Finally, just run make.

The following packages are required

Unfortunately, most distributions do not enable coff-i386 support in binutils.

It's very easy to enable it yourself, download binutils and configure it with --enable-targets=all.

There's no need to install it, just build it with make.

When that's complete, copy objcopy and objdump from the binutils directory, and ld-new from the ld directory to 123elf directory.

Important: ld-new must be renamed real-ld or gcc won't use it (I don't know why).

The Makefile should automatically use the new binaries, and continue to build.

Copy the file l123set.cf to ~/.l123set, and run ./123.