GCC 4.7 on Debian does not compile simple Objective C++ test

gcc-4.7-debian-objcxx-bug.mm

#include <stdio.h>
#include <stdlib.h>

#import <objc/runtime.h>
#include <assert.h>

@interface Object
{
  Class isa;
}
/* Required by the NeXT runtime.  Does nothing.  */
+ (id) initialize;

/* Creating instances  */
+ (id) new;
+ (id) alloc;
- (id) init;
- (id) free;

/* Auxiliary methods.  */
+ (Class) class;
+ (Class) superclass;
+ (const char *)name;
- (const char *)name;
@end

@implementation Object
+ (id) initialize
{
  return self;
}
+ (id) new
{
  return [[self alloc] init];
}
+ (id) alloc
{
  return class_createInstance (self, 0);
}
- (id) init
{
  return self;
}

- (id) free
{
  return object_dispose ((id)self);
}

+ (Class) class
{
  return self;
}
+ (Class) superclass
{
  return class_getSuperclass (self);
}
+ (const char *)name
{
  return class_getName (self);
}
- (const char *)name
{
  return class_getName (isa);
}
@end

@interface Frob: Object
@end

@implementation Frob: Object
@end

int proc() {
  @throw [[Frob alloc] init];
	return 1;
}

int foo()
{
	@try {
		return proc();
	}
	@catch (Frob *ex) {
		printf("Catch... ");
		return 0;
	}
	@finally {
		printf("Finally... ");
	}
}

int main(void)
{
	foo();
	return 0;
}