(root)/
gcc-13.2.0/
gcc/
testsuite/
rust/
compile/
abi-options1.rs
extern "foobar" {
    // { dg-error "unknown ABI option" "" { target *-*-* } .-1 }
    fn printf(s: *const i8, ...);
}

pub extern "baz" fn test() {}
// { dg-error "unknown ABI option" "" { target *-*-* } .-1 }