Compiling Unity project using 'unsafe' C# code

I'm trying to do an experiment by creating a simple unity windows application that can call functions from a dll. In monodeveloper, I have a C# file that exposes all the dll functions. The problem is that this dll wrapper file uses 'unsafe' code.. so while it builds successfully in MonoDeveloper, it doesn't compile in Unity ("Unsafe code requires the 'unsafe' command line option to be specified") I've never used Unity before so I don't where to set /unsafe checkbox. I tried manually editing the .csproj file to include <AllowUnsafeBlocks>true</AllowUnsafeBlocks> or AllowUnsafeBlocks="true" but that didn't work. The goal then is to set the switch for unsafe code and build in Unity, so that it I can call the dll functions from within Unity c# code. [login to view URL]