bindgen-tests/tests/headers/abi-override.h

// bindgen-flags: --override-abi=foo=fastcall --override-abi=bar=stdcall --override-abi=boo=efiapi --override-abi=foobar=efiapi --override-abi qux=system --raw-line '#![cfg(target = "i686-pc-windows-msvc")]'

void foo();
void bar();
void baz();
void qux();

typedef void (*boo)();
typedef void (*foobar)(boo boo);