The Project can't build success without -ObjC

[CoderKb]

React Native version:0.59.5

I delete -ObjC from build setting->Other link flag,Because I need to add SDL to my project.But if I don't delete -ObjC,will error:
Undefined symbols for architecture arm64:
"_SDL_main", referenced from:
-[SDLUIKitDelegate postFinishLaunch] in libSDL2.a(SDL_uikitappdelegate.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

and,when I delete -ObjC,will error:
Undefined symbols for architecture arm64:
"OBJC_CLASS$_RCTReconnectingWebSocket", referenced from:
objc-class-ref in libReact.a(RCTPackagerConnection.o)
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Can anybody show me some advice?
Thank you!

[stale]

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[stale]

Closing this issue after a prolonged period of inactivity. If this issue is still present in the latest release, please feel free to create a new issue with up-to-date information.