Comment 7 for bug 235955

I have looked into this bug and reduced it to this:
int main() {
    int x = 0;
    void test() {
        void test2() {
            x = 1; //Segfault because &x = 0x0
        }

        test2();
    }

    test();
    return 0;
}

Somehow gdc-2.4 comepiles the test function to
 movq -24(%rbp), %rax
 movq %rax, -16(%rbp)
 movq %rdi, -24(%rbp)
 movq -24(%rbp), %rax
When it should be (as compiled with gdc-4.1)
 movq %rdi, %rax
 movq %rax, -16(%rbp)

This makes %rax corect for test() but it sends the value -24(%rbp) to test2()

I hope someone with more tecnical insight into gdc can fix this bug
In the meantime you can use gdc-4.1 by default by running $sudo ln -s /usr/bin/gdc-4.1 /usr/bin/gdc