with the dos map editor only, it's basically required to have all these
to be able to edit maps and rebuild the 'pics.dtf' resource files to
actually use your edited maps with the way this version of ack3d works
sources taken from book CD:
ack_lib -> /ACK/WIN/ACK_LIB
fdemo -> /ACK/DOS/FDEMO/SOURCE (and /ACK/DOS/BORLAND as needed)
mall -> /ACK/DOS/MALL/SOURCE (and /ACK/DOS/BORLAND as needed)
some source files were missing for the demo projects and needed to be
copied from /ACK/DOS/BORLAND (as indicated above)