1 files changed, 0 insertions, 78 deletions
diff --git a/manual/examples/sigusr.c b/manual/examples/sigusr.c
deleted file mode 100644
index 51b44dcf03..0000000000
--- a/manual/examples/sigusr.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/* Using kill for Communication
-   Copyright (C) 1991-2017 Free Software Foundation, Inc.
-
-   This program 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 2
-   of the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, if not, see <http://www.gnu.org/licenses/>.
-*/
-
-/*@group*/
-#include <signal.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <unistd.h>
-/*@end group*/
-
-/* When a @code{SIGUSR1} signal arrives, set this variable.  */
-volatile sig_atomic_t usr_interrupt = 0;
-
-void
-synch_signal (int sig)
-{
-  usr_interrupt = 1;
-}
-
-/* The child process executes this function. */
-void
-child_function (void)
-{
-  /* Perform initialization. */
-  printf ("I'm here!!!  My pid is %d.\n", (int) getpid ());
-
-  /* Let parent know you're done. */
-  kill (getppid (), SIGUSR1);
-
-  /* Continue with execution. */
-  puts ("Bye, now....");
-  exit (0);
-}
-
-int
-main (void)
-{
-  struct sigaction usr_action;
-  sigset_t block_mask;
-  pid_t child_id;
-
-  /* Establish the signal handler. */
-  sigfillset (&block_mask);
-  usr_action.sa_handler = synch_signal;
-  usr_action.sa_mask = block_mask;
-  usr_action.sa_flags = 0;
-  sigaction (SIGUSR1, &usr_action, NULL);
-
-  /* Create the child process. */
-  child_id = fork ();
-  if (child_id == 0)
-    child_function ();		/* Does not return.  */
-
-/*@group*/
-  /* Busy wait for the child to send a signal. */
-  while (!usr_interrupt)
-    ;
-/*@end group*/
-
-  /* Now continue execution. */
-  puts ("That's all, folks!");
-
-  return 0;
-}