How do you disable string pooling in LabWindows?

I need to turn off string pooling in labWindows CVI 2013 to support some legacy code.  The CLANG manual describes an option "/GF-" that would do this. 

Is there a way to tell LabWindows to always use this option when compilng the project?  We would like to be able to continue to use the GUI and Build option in LabWindows.

Thanks,

Jerald