It is possible to build Retro on Windows, though a few of the extensions are not supported:

• no unix: words
• no gopher: words


This is currently more difficult than on a Unix host. If you have Windows 10 and WSL, it may be better to build under that (using the Unix instructions).



Retro on Windows is built with TCC.

Go to http://download.savannah.gnu.org/releases/tinycc/

Download the winapi-full and tcc-xxxx-bin packages for your system. Decompress them, copy the headers from the winapi package into the tcc directory.



Copy the vm/nga-c/retro.c and the vm/nga-c/image.c to the directory you setup tcc into.

Build

Building will require use of the command line. Assuming that tcc.exe is in the current directory along with the Retro sources:

tcc retro.c -o retro.exe