diff -c -r -N readline-6.0.orig/signals.c readline-6.0.new/signals.c
*** readline-6.0.orig/signals.c	Fri Jan 23 16:57:00 2009
--- readline-6.0.new/signals.c	Mon Nov 30 12:32:40 2009
***************
*** 592,599 ****
--- 592,603 ----
    switch (sig)
      {
      case SIGINT:  c = _rl_intr_char; break;
+ #if defined (SIGQUIT)
      case SIGQUIT: c = _rl_quit_char; break;
+ #endif
+ #if defined (SIGTSTP)
      case SIGTSTP: c = _rl_susp_char; break;
+ #endif
      default: return;
      }