open-watcom-v2-unwrapped: Only pull in DOSBox when building docs, fix docs build

We were doing it like this in the past, only changed to unconditionally pulling in DOSBox cus upstream said it
might be necessary.

Turns out that the docs build hasn't worked in awhile cus DOSBox doesn't launch without OpenGL available to it.
Since the docsless variant is unaffected, DOSBox does only seem necessary when building the docs.

Also, fix the docs build by using llvmpipe for OpenGL.

0 files changed, 0 insertions, 0 deletions