Older version of x86emu do not execute some 32-bit instructions properly such as LEA and CALL/RET, and gcc generates some of them. Open Watcom can generate true

Older version of x86emu do not execute some 32-bit instructions properly such as LEA and CALL/RET, and gcc generates some of them. Open Watcom can generate true 16-bit only code that avoid these bugs. Unfortunately while the license is OSI-approved it is not FSF-free. This is interesting because it raises the question of which kind of "private use" restrictions disqualify the license from being "free software". But more importantly it is not DFSG-free either because of other reasons. This is why VirtualBox had to be moved to contrib. I have posted an GitHub issue about changing the license: https://github.com/open-watcom/open-watcom-v2/issues/271 https://github.com/open-watcom/open-watcom-v2/issues/271