Don't use IncrediBuild build option.
WAF will execute Incredibuild internally if needed.
Select Build Spec:
Ensure correct project is selected as "Startup Project".
WAF Property Page:
Per project or per files configurable WAF override options.
Note: Options are not stored across project regenerations!
Single Files Compilation Modes:
Extracting WAF command:
Could copy and past into command console to be executed on other machine.