Merge from mainline.

1 files changed, 0 insertions, 23 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index 48d39235e3f..f6d6704b373 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -7507,12 +7507,6 @@ input_available_signal (signo)
 {
   /* Must preserve main program's value of errno.  */
   int old_errno = errno;
-#if defined (USG) && !defined (POSIX_SIGNALS)
-  /* USG systems forget handlers when they are used;
-     must reestablish each time */
-  signal (signo, input_available_signal);
-#endif /* USG */
-
   SIGNAL_THREAD_CHECK (signo);
 
 #ifdef SYNC_INPUT
@@ -7595,12 +7589,6 @@ handle_user_signal (sig)
   int old_errno = errno;
   struct user_signal_info *p;
 
-#if defined (USG) && !defined (POSIX_SIGNALS)
-  /* USG systems forget handlers when they are used;
-     must reestablish each time */
-  signal (sig, handle_user_signal);
-#endif
-
   SIGNAL_THREAD_CHECK (sig);
 
   for (p = user_signals; p; p = p->next)
@@ -11089,13 +11077,6 @@ interrupt_signal (signalnum)	/* If we don't have an argument, */
   int old_errno = errno;
   struct terminal *terminal;
 
-#if defined (USG) && !defined (POSIX_SIGNALS)
-  /* USG systems forget handlers when they are used;
-     must reestablish each time */
-  signal (SIGINT, interrupt_signal);
-  signal (SIGQUIT, interrupt_signal);
-#endif /* USG */
-
   SIGNAL_THREAD_CHECK (signalnum);
 
   /* See if we have an active terminal on our controlling tty. */
@@ -11304,11 +11285,7 @@ See also `current-input-mode'.  */)
     {
       /* When using X, don't give the user a real choice,
          because we haven't implemented the mechanisms to support it.  */
-#ifdef NO_SOCK_SIGIO
-      new_interrupt_input = 0;
-#else /* not NO_SOCK_SIGIO */
       new_interrupt_input = 1;
-#endif /* NO_SOCK_SIGIO */
     }
   else
 #endif /* HAVE_X_WINDOWS */