X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/4d36e5246e3d182b84f5d776e730a81e03fff06a..ec90220ac1bd81437654d07b769819e1dcd24de5:/src/syssignal.h

diff --git a/src/syssignal.h b/src/syssignal.h
index b536eb501b..df4b140501 100644
--- a/src/syssignal.h
+++ b/src/syssignal.h
@@ -1,6 +1,6 @@
 /* syssignal.h - System-dependent definitions for signals.
 
-Copyright (C) 1993, 1999, 2001-2015 Free Software Foundation, Inc.
+Copyright (C) 1993, 1999, 2001-2016 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -17,6 +17,9 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
+#ifndef EMACS_SYSSIGNAL_H
+#define EMACS_SYSSIGNAL_H
+
 #include <signal.h>
 
 extern void init_signals (bool);
@@ -32,6 +35,12 @@ extern void unblock_tty_out_signal (sigset_t const *);
 #define FORWARD_SIGNAL_TO_MAIN_THREAD
 #endif
 
+/* On Cygwin as of 2015-06-22 SIGEV_SIGNAL is defined as an enum
+   constant but not as a macro. */
+#if defined CYGWIN && !defined SIGEV_SIGNAL
+#define SIGEV_SIGNAL SIGEV_SIGNAL
+#endif
+
 #if defined HAVE_TIMER_SETTIME && defined SIGEV_SIGNAL
 # define HAVE_ITIMERSPEC
 #endif
@@ -66,3 +75,5 @@ char const *safe_strsignal (int) ATTRIBUTE_CONST;
 #endif
 
 void deliver_process_signal (int, signal_handler_t);
+
+#endif /* EMACS_SYSSIGNAL_H */