Merge GDB 7.5.1

readline/signals.c

 /* signals.c -- signal handling support for readline. */
 
 /* Copyright (C) 1987-2009 Free Software Foundation, Inc.
 
    This file is part of the GNU Readline Library (Readline), a library
    for reading lines of text with interactive input and history editing.      
 
    Readline is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
@@ skipping 562 matching lines @@
 #  else /* !HAVE_BSD_SIGNALS */
 #    if defined (HAVE_USG_SIGHOLD)
   sigrelse (SIGINT);
 #    endif /* HAVE_USG_SIGHOLD */
 #  endif /* !HAVE_BSD_SIGNALS */
 #endif /* !HAVE_POSIX_SIGNALS */
 
   sigint_blocked = 0;
 }
 
+#ifdef SIGWINCH
 /* Cause SIGWINCH to not be delivered until the corresponding call to
    release_sigwinch(). */
 void
 _rl_block_sigwinch ()
 {
   if (sigwinch_blocked)
     return;
 
 #if defined (HAVE_POSIX_SIGNALS)
   sigemptyset (&sigwinch_set);
@@ skipping 27 matching lines @@
   sigsetmask (sigwinch_oldmask);
 #  else /* !HAVE_BSD_SIGNALS */
 #    if defined (HAVE_USG_SIGHOLD)
   sigrelse (SIGWINCH);
 #    endif /* HAVE_USG_SIGHOLD */
 #  endif /* !HAVE_BSD_SIGNALS */
 #endif /* !HAVE_POSIX_SIGNALS */
 
   sigwinch_blocked = 0;
 }
+#endif /* SIGWINCH */
 
 /* **************************************************************** */
 /*                                                                  */
 /*              Echoing special control characters                  */
 /*                                                                  */
 /* **************************************************************** */
 void
 rl_echo_signal_char (sig)
      int sig;
 {
@@ skipping 22 matching lines @@
       cstr[cslen = 2] = '\0';
     }
   else
     {
       cstr[0] = c;
       cstr[cslen = 1] = '\0';
     }
 
   _rl_output_some_chars (cstr, cslen);
 }