Unity 2.1 and how to specific /unsafe commandline argument

I’m currently writting handling code for a C library as plugin in Unity Pro

As it includes masses of strings and alike, I hoped that I could cut it a bit by using “unsafe” but found out for the DLLImport functions but that does require a specific compile flag.

Is there any way to get this working within Unity?
or is this only possible when using the build?

The error I am getting is “error CS0227: Unsafe code requires the `unsafe’ command line option to be specified”

I found this thread: http://forum.unity3d.com/viewtopic.php?t=6153&highlight=command+line+unsafe
But the question on the command line was ignored. I know how to use it for command line but that does not help me much for fast testing.

Especially without beeing able to statically define it, Unity will flood me with errors on those lines and not show a single real error as it seems

Any chance anyone has an answer on that?
As the unity editor mentions the error that I have to specify unsafe as commandline argument I would love to know how to do that.

Starting the unity executable out of the app package with
./Unity /unsafe
./Unity -unsafe
./Unity --unsafe
./Unity unsafe

I also found http://forum.unity3d.com/viewtopic.php?p=53978&highlight=unsafe#53978

but the solution offered there does not work with Unity 2.1

So is there any way to get this working?

OK got an answer from Unity Support

Unity does not support this, you must compile your own .NET DLL and use that within Unity