Hello, I'm new to Unity, so maybe you guys could help me get some issues off of the ground. This is all C#. In order to use an existing library I have, I believe I need to modify compiler settings to accomplish two goals: -Enabling use of unsafe. At the points where my code uses 'unsafe,' I get the error "Unsafe code requires the 'unsafe' command line option to be specified." -Enabling use of System.Linq. Is there a way to do this, or is this not supported? "The type or namespace name 'Linq' does not exist in the namespace 'System'. I have tried modifying compile_any.pl, based on what I read elsewhere in the forums. In particular, in the region # Run the csharp compiler I added '-unsafe' and '-langversion:linq' to @base_args. This did nothing. I later got rid of the file compile_any.pl altogether (or rather, renamed it to compile_any2.pl) and it still doesnt make a difference, it compiles just as it used to. I have indeed modified and re-saved the files to make sure they are compiling, and it appears that they are. So maybe I'm modifying the wrong file? The one I have was found in, with my directory structure: C:\Program Files\Unity\Editor\Data\MonoCompiler.framework\compile_any.pl If it matters, Unity 2.6.1f3, Pro. Thanks!