!!! NOTICE !!!

Turns out we've reinvented the wheel. Alex Zhdankin has a better version of this tool on BitBucket. Please use that.

This will be left for search & scholary purposes.

!!! /NOTICE !!!

Unity Mono Compiler Wrapper

Updates Unity to use newer Mono compiler.

Because Unity uses a very old Mono compiler this fixes various problems, like:

• Not compiling perfectly valid C# code.
• Generating garbage when there should be no garbage (http://makegamessa.com/discussion/1493/it-s-official-foreach-is-bad-in-unity).
• Generating invalid IL (http://forum.unity3d.com/threads/compiling-errors.319958/ - as far as we know this is related to nested classes).
• Not being able to use C# 6 - yay!

Setting up

%UNITY_INSTALL_DIR% is the directory you've installed Unity. That means it's the directory with Editor/ and MonoDevelop/ directories inside of it.

Instructions

• Install latest mono.
• Either:
• Install UnityVS & get Unity SDK files from C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v3.5\Profile\Unity Full v3.5.
• Download Unity SDK files from here: unityfull.zip
• Put extracted Unity SDK files somewhere - the default location is %UNITY_INSTALL_DIR%\unityfull.
• Download compiler-upgrade.zip.
• Extract compiler-upgrade.zip to %UNITY_INSTALL_DIR% overwriting any files.

Environment variables

You can specify these environment variables to change the behaviour of the wrapper:

• UNITY_NEW_MONO_SDK - path to Unity SDK which is used when building (default: %UNITY_INSTALL_DIR%\unityfull).
• UNITY_NEW_MONO - path to new version of Mono (default: %ProgramFiles%\Mono\lib\mono\4.5\mcs.exe).

Troubleshooting

We have only checked this on Windows & Android. Pull requests are welcome.

Other than that - if you have problems check the log file at %TEMP%\UnityMonoUpdatedCompilerOutput.txt

Original Author

Evaldas Čiakas evaldas@tinylabproductions.com