-Ratt Raspberry Pi Raspbian

[feverish]

I am trying to re-use in Raspberry pi, various units that comprise a working Lazarus programme compiled in windows.

When trying to compile and run the application using Raspberry pi's lazarus, I keep getting a message 'Error: Illegal parameter: -Ratt.
I've tried and failed to see where this 'illegal' parameter may be, but can't see it in any of the .pas files I have written.  Hopelessly lost.  Please throw nearest lifeline.

[Laksen]

-Ratt is a commandline parameter used to enable AT&T style assembler on x86/x86_64.