[Mono-dev] Bug with mcs, gmcs nested preprocessor defines?

[Marek Safar]

Hello Marcel,

Yes, it is mcs/gmcs bug. Please, fill a bug report on bugzilla.ximian.com

Thanks,
Marek

> Hi,
>
> i have a little code snippet which does not return
> the expected output with mcs or gmcs.
>
> On Windows, with csc, it outputs correctly
>
>    PreBug.cs(6,1): warning CS1030: #warning: `A1'
>
> whereas with mcs/gmcs i get
>
>    PreBug.cs(6,1): warning CS1030: #warning: `A1'
>    PreBug.cs(13,1): warning CS1030: #warning: `A2->else'
>
> The second line (a nested define) i think is not correct,
>
> thanks
> Marcel
>
> ----------- PreBug.cs -----------
> /*
> mcs -warn:4 -define:A1 PreBug.cs
>
> //Mono C# compiler version 1.1.13.8 and 1.1.18.1
> PreBug.cs(6,1): warning CS1030: #warning: `A1'
> PreBug.cs(13,1): warning CS1030: #warning: `A2->else'
> */
>
> #if A1
> #  warning A1
> #elif A2
> #  warning A2
> #  if B2
> #    warning A1->B2
> #    define A1B2
> #  else
> #    warning A2->else
> #  endif
> #else
> #  warning else
> #endif
> ----------- PreBug.cs -----------
>
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