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Bug 5458

Summary: iOS always defines main() even if built as a shared library
Product: SDL Reporter: Caleb Cornett <spydog>
Component: mainAssignee: Ryan C. Gordon <icculus>
Status: ASSIGNED --- QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2 Keywords: target-2.0.16
Version: 2.0.15   
Hardware: x86   
OS: iOS (All)   

Description Caleb Cornett 2021-01-10 23:29:18 UTC 
Before the Xcode/Xcode-iOS merge, the iOS SDL_main definition could be disabled for shared libraries by defining IOS_DYLIB=1 (which is still defined in the iOS-Shared target in the new Xcode project file). However, the check for that define was removed so main() is now always defined: https://hg.libsdl.org/SDL/rev/6c2bbcfc3940 vs. https://hg.libsdl.org/SDL/file/17d911637a65/src/main/uikit/SDL_uikit_main.c

This is problematic for applications which do not statically link with SDL2, or which have their own main function. It seems the simplest solution is to just copy the #if defined(...) from the old uikitappdelegate code into SDL_uikit_main, but there might be a better option.