Other compilers are presently not supported. Most notably, some people have tried to compile using VAC 3.6.5 and ran into problems.
It is recommended to use the Warp 4.5 toolkit. Since compatibility
with Warp 3 was given up with XWorkplace 1.0.1, there is no requirement to
use the Warp 3 toolkit anymore. Unfortunately, most versions of the Warp 4.5
toolkit have a broken SOM compiler, nmake.exe, and rc.exe.
To solve this problem, you can either use the toolkit that comes with eComStation 1.2R and later, or use the following work-around:
EMITIR.DLL.
See the EMIT*.DLL files in the SOM\LIB\ subdirectory of the toolkit.
nmake.exe from the Warp 3 toolkit, or use the one from VAC++.
rc.exe that comes with OS/2 and eComStation.
XWP_DEBUG
in config.in,
you will need the full PMPRINTF package by Dennis Bareis.
Check the "Debugging" section for details.