On 5 February 2018 at 15:00, <sevedt@xxxxxxxxx> wrote: > I get error messages about the command-line and can not find any docomentation on how to understand what is wrong. I use msys2 under Windows 10 but when i compiled under Linux (Ubuntu Studio 14.4) there were no errors. The compiler is telling you there are errors in the code, and the location of the errors is in something defined on the command-line, which must mean in your macro definitions. Check what those arguments expand to.