Not sure if this question belongs here or on SO, but posting here for now :)

I'm trying to override a global function defined in "StaticLib" for my iOS application but the compiler keeps giving me the duplicate symbol error.

Relevant code:

#import "MyApplication.h"
#import "StaticLib.h"

NSData* getAllData() {
    NSLog(@"myGetAllData");
    return nil;
}

@implementation MyApplication
...
@end

I've looked into Apple's runtime library but that all seems to be class-oriented. Any suggestions or is it just not possible to override global functions from static libraries?