[Vala] Annoying C compiler warning

[Dominique Würtz <housirer gmx de>]

Hi,

good to see the recent progress in Vala! I just want to let you know
about a non-critical but annoying warning from the C compiler when
compiling the source of the following Vala code:

interface ClassA {
        public abstract ClassA foo();
}

class ClassB : ClassA {
        public ClassA foo() {
                return this;
        }
}

public class Test {
        static int main (string[] args) {
        }
}


results in

test.c: In function 'class_b_real_foo':
test.c:28: warning: return from incompatible pointer type

If ClassA is declared as a class, everything is ok.

Dominique