Function Perl_delimcpy 

pub unsafe fn Perl_delimcpy(
    my_perl: *mut PerlInterpreter,
    to: *mut c_char,
    to_end: *const c_char,
    from: *const c_char,
    from_end: *const c_char,
    delim: c_int,
    retlen: *mut I32,
) -> *mut c_char

thx shim for crate::Perl_delimcpy.