Using the GCC __unused attribute with Objective-C

Question

Is it possible to use the __unused attribute macro on Objective-C object method parameters? I\'ve tried placing it in various positions around the parameter declaration but

Answer 1

I can compile the following just fine:

- (NSString *) test:(__unused NSString *)test {
    return nil;
}

Edit: Actually, that may not be strictly an arch thing:

Phoenix-VI:CouchPusher louis$ cc -c Pusher.m -Wall -Werror
Phoenix-VI:CouchPusher louis$ cc -c Pusher.m -Wall -Werror  -Wunused-parameter
cc1obj: warnings being treated as errors
Pusher.m:40: warning: unused parameter ‘test’
Phoenix-VI:CouchPusher louis$ 

So -Wall does not include not include -Wunused-parameter....