Function mupdf_sys::fz_option_eq

pub unsafe extern "C" fn fz_option_eq(
    a: *const c_char, 
    b: *const c_char
) -> c_int

Check to see if an option, a, from a string matches a reference option, b.

(i.e. a could be 'foo' or 'foo,bar...' etc, but b can only be 'foo'.)