X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/8b990b89011d5b954c794e08549776b15e34fff1..a00634c20988215a47ec6c00cea85a2eac162597:/src/syssignal.h

diff --git a/src/syssignal.h b/src/syssignal.h
index b536eb501b..5c14479cca 100644
--- a/src/syssignal.h
+++ b/src/syssignal.h
@@ -32,6 +32,12 @@ 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