UnityEditor Pre-compliler Defines for differentiating between Windows & Mac OSX

Questions & Answers
1

We are using Unity in an Windows & Mac OSX environment, with our primary development environment being Windows. This means that some of our plugins and tools are Windows Specific. I would like to be able to exclude and/or include Windows vs Mac OSX environment specific components (Assets, Scripts, Libraries, etc.).

Is there a pre-compiler define? Is there another way to determine this without using the RuntimePlatform API? Is there way to determine the environment from the Unity Executable?

2

Yes, there are defines for standalone platforms. See this page.

In short, you want either UNITY_STANDALONE_OSX or UNITY_STANDALONE_WIN.

In order to tell whether the Unity Editor is running on a particular platform, use these enum flags:

RuntimePlatform.OSXEditor and RuntimePlatform.WindowsEditor