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Fixed in 2020.1
Fixed in 2018.4, 2019.4
Votes
0
Found in
2018.4
2018.4.6f1
Issue ID
1189679
Regression
No
MacOS IL2CPP ignores project's Objective-C native source files
Issue
Unity supports compiling plugins using native programming languages such as C, Java, and Objective-C. In 2018 MacOS IL2CPP support was added to Unity. Adding C/C++ files to a project results in them being compiled and the code accessible to the csharp layer.
Currently and since at least 2018.4, adding *.m, *.mm Objective-C files to a project makes no impact to a project.
Expectation
Adding *.m, *.mm Objective-C files to a Unity Project would make the code in those files be compiled, included in executable, and accessible to the csharp layer.
Reproduction
1 Create a Unity project in 2018.4
2 Add a *.m file
3 Add a *.cs file with a binding to that objective-c
4 Build
5 See csharp be unable to access the objective-c
https://drive.google.com/open?id=1qydRWAo-ur9wDBoaTMWcDgfGGXuzzr0_ (see slack discussion for instructions)
Origin
A support-request was opened for the Unity IAP plugin on MacOS IL2CPP due to its inability to utilize the Apple Objective-C StoreKit API.
Slack discussion
Impact
* Enterprise customer Ninja Kiwi blocked from releasing on MacOS
* ATTN Sebastien Thevenet, John Sietsma
* https://unity3d.zendesk.com/agent/tickets/660808
* Project == Bloons TD 6
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