Function rust_tcl_sys::tcl::Tcl_UpVar

pub unsafe extern "C" fn Tcl_UpVar(
    interp: *mut Tcl_Interp, 
    frameName: *const c_char, 
    varName: *const c_char, 
    localName: *const c_char, 
    flags: c_int
) -> c_int