Import of readline 4.3.

Non-readline modified files:

src/gdb/ChangeLog src/gdb/defs.h src/gdb/cli/cli-cmds.c
src/gdb/cli/cli-setshow.c src/gdb/tui/ChangeLog
src/gdb/tui/tuiWin.c

In readline directory:

        * compat.c, mbutil.c, misc.c, rlmbutil.h, rltypedefs.h,
        text.c, doc/history.0, doc/history.3, support/wcwidth.c,
        examples/readlinebuf.h, examples/rlcat.c: New files.

        * CHANGELOG, CHANGES, INSTALL,  MANIFEST, Makefile.in, README,
        aclocal.m4, ansi_stdlib.h, bind.c, callback.c, chardefs.h,
        complete.c, config.h.in, configure, configure.in, display.c,
        emacs_keymap.c, funmap.c, histexpand.c, histfile.c, histlib.h,
        history.c, history.h, histsearch.c, input.c, isearch.c,
        keymaps.c, keymaps.h, kill.c, macro.c, nls.c, parens.c,
        posixdir.h, readline.c, readline.h, rlconf.h, rldefs.h,
        rlprivate.h, rlshell.h, rlstdc.h, rltty.c, savestring.c,
        search.c, shell.c, signals.c, terminal.c, tilde.c, tilde.h,
        undo.c, util.c, vi_keymap.c, vi_mode.c, xmalloc.c, xmalloc.h,
        doc/Makefile.in, doc/hist.texinfo, doc/hstech.texinfo,
        doc/hsuser.texinfo, doc/manvers.texinfo, doc/readline.3,
        doc/rlman.texinfo, doc/rltech.texinfo, doc/rluser.texinfo
        doc/rluserman.texinfo, doc/texi2dvi, doc/texi2html,
        shlib/Makefile.in, support/install.sh, support/mkdirs,
        support/mkdist, support/shlib-install, support/shobj-conf,
        examples/Inputrc, examples/Makefile.in, examples/fileman.c,
        examples/histexamp.c, examples/manexamp.c, examples/rl.c,
        examples/rlfe.c, examples/rltest.c, examples/rlversion.c:
        Modified files.

1 files changed, 11 insertions, 5 deletions

diff --git a/readline/signals.c b/readline/signals.c
index 283a115906c..9deb0766422 100644
--- a/readline/signals.c
+++ b/readline/signals.c
@@ -61,7 +61,7 @@
 #  define SIGHANDLER_RETURN return (0)
 #endif
 
-/* This typedef is equivalant to the one for Function; it allows us
+/* This typedef is equivalent to the one for Function; it allows us
    to say SigHandler *foo = signal (SIGKILL, SIG_IGN); */
 typedef RETSIGTYPE SigHandler ();
 
@@ -73,7 +73,8 @@ typedef struct { SigHandler *sa_handler; int sa_mask, sa_flags; } sighandler_cxt
 #  define sigemptyset(m)
 #endif /* !HAVE_POSIX_SIGNALS */
 
-static SigHandler *rl_set_sighandler __P((int, SigHandler *, sighandler_cxt *));
+static SigHandler *rl_set_sighandler PARAMS((int, SigHandler *, sighandler_cxt *));
+static void rl_maybe_set_sighandler PARAMS((int, SigHandler *, sighandler_cxt *));
 
 /* Exported variables for use by applications. */
 
@@ -121,6 +122,8 @@ rl_signal_handler (sig)
 #  endif /* !HAVE_BSD_SIGNALS */
 #endif /* !HAVE_POSIX_SIGNALS */
 
+  RL_SETSTATE(RL_STATE_SIGHANDLER);
+
 #if !defined (HAVE_BSD_SIGNALS) && !defined (HAVE_POSIX_SIGNALS)
   /* Since the signal will not be blocked while we are in the signal
      handler, ignore it until rl_clear_signals resets the catcher. */
@@ -171,6 +174,7 @@ rl_signal_handler (sig)
       rl_reset_after_signal ();
     }
 
+  RL_UNSETSTATE(RL_STATE_SIGHANDLER);
   SIGHANDLER_RETURN;
 }
 
@@ -191,6 +195,7 @@ rl_sigwinch_handler (sig)
   rl_set_sighandler (SIGWINCH, rl_sigwinch_handler, &dummy_winch);
 #endif
 
+  RL_SETSTATE(RL_STATE_SIGHANDLER);
   rl_resize_terminal ();
 
   /* If another sigwinch handler has been installed, call it. */
@@ -198,6 +203,7 @@ rl_sigwinch_handler (sig)
   if (oh &&  oh != (SigHandler *)SIG_IGN && oh != (SigHandler *)SIG_DFL)
     (*oh) (sig);
 
+  RL_UNSETSTATE(RL_STATE_SIGHANDLER);
   SIGHANDLER_RETURN;
 }
 #endif  /* SIGWINCH */
@@ -229,7 +235,7 @@ rl_set_sighandler (sig, handler, ohandler)
   struct sigaction act;
 
   act.sa_handler = handler;
-  act.sa_flags = 0;
+  act.sa_flags = 0;	/* XXX - should we set SA_RESTART for SIGWINCH? */
   sigemptyset (&act.sa_mask);
   sigemptyset (&ohandler->sa_mask);
   sigaction (sig, &act, &old_handler);
@@ -360,7 +366,7 @@ rl_cleanup_after_signal ()
   _rl_clean_up_for_exit ();
   (*rl_deprep_term_function) ();
   rl_clear_signals ();
-  rl_pending_input = 0;
+  rl_clear_pending_input ();
 }
 
 /* Reset the terminal and readline state after a signal handler returns. */
@@ -380,7 +386,7 @@ rl_free_line_state ()
 {
   register HIST_ENTRY *entry;
 
-  free_undo_list ();
+  rl_free_undo_list ();
 
   entry = current_history ();
   if (entry)