message: Haiku: doesn't have SIG_SYS
diff: @@ -459,6 +459,7 @@ pub fn process_error(msg: &str,
  libc::SIGSEGV => ", SIGSEGV: invalid memory reference",
  libc::SIGTERM => ", SIGTERM: termination signal",
  libc::SIGBUS => ", SIGBUS: access to undefined memory",
  + #[cfg(not(target_os = "haiku"))]
  libc::SIGSYS => ", SIGSYS: bad system call",
  libc::SIGTRAP => ", SIGTRAP: trace/breakpoint trap",
  _ => "",
  