Should I include "-ObjC and -all_load" in Other Linker Flag to all my iOS projects? [duplicate]

Question

Possible Duplicate:
What does the -all_load linker flag do?

I see most static library require you to do it, so I add them in all of my projects, seems no side effect in adding this?

Answer 1

There is a side effect: build phase take much time.

-ObjC allow the static library to use objective-c specific stuffs like kvc or categories.

-all_load solve a bug in gcc/llvm, where -ObjC is not correctly used.