The parent post mentioned they're going to use OpenWatcom which is an actively developed[0] C and C++ compiler that targets 16bit DOS (among others).
[0] https://github.com/open-watcom/open-watcom-v2
The parent post mentioned they're going to use OpenWatcom which is an actively developed[0] C and C++ compiler that targets 16bit DOS (among others).
[0] https://github.com/open-watcom/open-watcom-v2