MacRuby : ticket #1485

extconf.rb

require "mkmf"
$CFLAGS << ' -fobjc-gc -std=c99 '
create_makefile("Foo")

foo.h

#import  <Foundation/Foundation.h>
#include <stdarg.h>

@interface Foo : NSObject {
}

/// this method would print the variables.
- (void) log: (id) firstObj, ... NS_REQUIRES_NIL_TERMINATION;    // Obj-C variadic method. Using nil at the end of args.
@end

foo.m

#include "foo.h"

@implementation Foo
- (void) log: (id) firstObj, ... {
    va_list ap;
    va_start (ap, firstObj);
    for (id obj = firstObj; obj != nil; obj = va_arg(ap, id) ){
	NSLog(@"%@", obj);
    }
    va_end (ap);
}
@end

// For MacRuby
void Init_Foo() {}

test.rb

require 'Foo'
load_bridge_support_file 'Foo.bridgesupport'

Foo.new.log ("1", "2", "3", nil)

$ macruby extconf.rb 
$ make
$ gen_bridge_metadata -c '-I.' foo.h > Foo.bridgesupport

$ macruby test.rb
2012-03-24 14:07:54.778 macruby[14022:507] 1
2012-03-24 14:07:54.780 macruby[14022:507] 2
2012-03-24 14:07:54.781 macruby[14022:507] 3