pub unsafe extern "C" fn Perl_foldEQ_utf8_flags(
my_perl: *mut PerlInterpreter,
s1: *const c_char,
pe1: *mut *mut c_char,
l1: UV,
u1: bool,
s2: *const c_char,
pe2: *mut *mut c_char,
l2: UV,
u2: bool,
flags: U32,
) -> I32