Set ERRORLEVEL to non-zero value if CLI project build post-build step fails, even if the project build itself is successful (*.out file successfully generated). Currently, it will set it to zero (success) as long as the project build is successful and disregard any failures of the post-build step.

Some suggestions include setting the ERRORLEVEL to the value that gets returned from the last post-build step. Another suggestion is to define specific values to have one value represent a post-build failure, another for a pre-build failure, etc.