BZ #13792: License manual example source files under GPL.

1 files changed, 19 insertions, 2 deletions

diff --git a/manual/examples/sigusr.c b/manual/examples/sigusr.c
index 11e3ceee8f..5bfbc80716 100644
--- a/manual/examples/sigusr.c
+++ b/manual/examples/sigusr.c
@@ -1,3 +1,20 @@
+/* Using kill for Communication
+   Copyright (C) 1991-2012 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>
@@ -8,14 +25,14 @@
 /* When a @code{SIGUSR1} signal arrives, set this variable.  */
 volatile sig_atomic_t usr_interrupt = 0;
 
-void 
+void
 synch_signal (int sig)
 {
   usr_interrupt = 1;
 }
 
 /* The child process executes this function. */
-void 
+void
 child_function (void)
 {
   /* Perform initialization. */