You will need the following files to build and run programs using EMX
BUT
note that the site is now dead:
README.DOC
INSTALL.DOC
emxdev1.zip
emxdev2.zip
gnudev1.zip
gnudev2.zip
emxrt.zip
emxfix04.zip
You will also need the following file to build and run programs under windows using RSX:
rsxrt150.zip