(input_available_signal) [POSIX_SIGNALS]:

Don't reestablish handler.
(interrupt_signal) [POSIX_SIGNALS]: Likewise.

diff --git a/src/keyboard.c b/src/keyboard.c
index b1578a3a949346508e286f8340426003503d35e4..f0a95c3e5ab018b81b383ecf0a0a5c9150c9247a 100644 (file)
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -4907,7 +4907,7 @@ input_available_signal (signo)
   extern int select_alarmed;
 #endif
 
-#ifdef USG
+#if defined (USG) && !defined (POSIX_SIGNALS)
   /* USG systems forget handlers when they are used;
      must reestablish each time */
   signal (signo, input_available_signal);
@@ -7364,7 +7364,7 @@ interrupt_signal (signalnum)      /* If we don't have an argument, */
   /* Must preserve main program's value of errno.  */
   int old_errno = errno;
 
-#ifdef USG
+#if defined (USG) && !defined (POSIX_SIGNALS)
   if (!read_socket_hook && NILP (Vwindow_system))
     {
       /* USG systems forget handlers when they are used;