问题
Most of the security and penetration tools report if the ARC is not enabled.
fobjc-arc flag is not Found
As far as I know we can't do this in xamarin because we don't have build settings here.
This flag can be set in build settings only.
Even if we could , it won't work because xamarin uses C# and MRC to manage memory by itself.
Can anybody explain me how it can be done or not done or my understanding is wrong
Edit:
We can turn on ARC to a full project by build settings
CLANG_ENABLE_OBJC_ARC=YES
But there is no way to do this in xam studio ... setting the value in mtouch also throws error
回答1:
Add the following to the Additional mtouch arguments text field within the Xamarin.iOS project properties window:
-gcc_flags "-fobjc-arc"
来源：https://stackoverflow.com/questions/43724067/enabling-in-arc-in-xamarin