Displays - Background program DISPLAYs are not written to log file.

Problem:

After an upgrade to a new server the DISPLAYs are no longer written to the log file.  Programs are executed in the background with:

runcbl -b programname > output.log

On the old server the DISPLAY statements were written to the log file but now the log file is empty after running the program.

Resolution:

The programs must be compiled with the -Ca option.