ref: 61d8ab34d1ccd7ffdc3fd0e3fe73bf1a87bf0af6 dir: /tests/cc/execute/0155-struct-compl.c/
extern struct X x; int foo(); int main() { extern struct X x; return &x != 0; } struct X {int v;}; int foo() { x.v = 0; return x.v; }