Output From Build.txt

18 jordan@thetourist /tmp > g++ -fobjc-gc-only -o test test.mm
test.mm: In function ‘int main(int, char**)’:
test.mm:4: error: ‘objc_collectingEnabled’ was not declared in this scope
test.mm:5: error: ‘objc_startCollectorThread’ was not declared in this scope

test.mm

#import <Foundation/Foundation.h>

int main(int argc, char *argv[]) {
    if (objc_collectingEnabled()) {
        objc_startCollectorThread();
    }

    NSAutoreleasePool *mainPool = [[NSAutoreleasePool alloc] init];

    [mainPool drain];
    return 0;
}