[PATCH 1/5] mq_notify.3: Add signal.h for SIGEV_ constants

[Stephen Kitt <steve@sk2.org>]

The example program needs signal.h to build correctly, since the
SIGEV_ constants are defined through signal.h; also document that in
the synopsis.

Signed-off-by: Stephen Kitt <steve@sk2.org>
---
 man3/mq_notify.3 | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/man3/mq_notify.3 b/man3/mq_notify.3
index 2c35a347d..222108d61 100644
--- a/man3/mq_notify.3
+++ b/man3/mq_notify.3
@@ -28,6 +28,7 @@ mq_notify \- register for notification when a message is available
 .SH SYNOPSIS
 .nf
 .B #include <mqueue.h>
+.BR "#include <signal.h>           " "/* Definition of SIGEV_* constants */"
 .PP
 .BI "int mq_notify(mqd_t " mqdes ", const struct sigevent *" sevp );
 .fi
@@ -224,6 +225,7 @@ queue and then terminates the process.
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <signal.h>
 
 #define handle_error(msg) \e
     do { perror(msg); exit(EXIT_FAILURE); } while (0)

base-commit: 88d2b3fdef39603bc6a608a0d814d1800b6a4089
-- 
2.30.2