I would like to display some identifier that is set after compilation and remains unchanged.
This is to recognise and check if two binaries belong to the same compilation or it is a different compilation.

I would place it into version command of my program.

This is what I have now.
Compilation ID is where I would like to show the identifier.

    registerCommand("version", "Show version", { writeln("Compilation date: " ~ __DATE__ ~ " " ~ __TIME__ ~ "\n Compilation ID: "); });