Add "Lint with -lrt." to SYNOPSIS.

man3/mq_close.3

@@ -29,6 +29,8 @@ mq_close \- close a message queue descriptor
 .sp
 .BI "mqd_t mq_close(mqd_t " mqdes );
 .fi
+.sp
+Link with \fI\-lrt\fP.
 .SH DESCRIPTION
 .BR mq_close ()
 closes the message queue descriptor

man3/mq_getattr.3

@@ -31,6 +31,8 @@ mq_getattr, mq_setattr \- get/set message queue attributes
 .BI "mqd_t mq_setattr(mqd_t " mqdes ", struct mq_attr *" newattr ","
 .BI "                 struct mq_attr *" oldattr );
 .fi
+.sp
+Link with \fI\-lrt\fP.
 .SH DESCRIPTION
 .BR mq_getattr ()
 and

man3/mq_notify.3

@@ -29,6 +29,8 @@ mq_notify \- register for notification when a message is available
 .sp
 .BI "mqd_t mq_notify(mqd_t " mqdes ", const struct sigevent *" notification );
 .fi
+.sp
+Link with \fI\-lrt\fP.
 .SH DESCRIPTION
 .BR mq_notify ()
 allows the calling process to register or unregister for delivery of

man3/mq_open.3

@@ -31,6 +31,8 @@ mq_open \- open a message queue
 .BI "mqd_t mq_open(const char *" name ", int " oflag ", mode_t " mode ,
 .BI "              struct mq_attr *" attr );
 .fi
+.sp
+Link with \fI\-lrt\fP.
 .SH DESCRIPTION
 .BR mq_open ()
 creates a new POSIX message queue or opens an existing queue.

man3/mq_receive.3

@@ -38,6 +38,8 @@ mq_receive, mq_timedreceive \- receive a message from a message queue
 .BI "                   size_t " msg_len ", unsigned *" msg_prio ,
 .BI "                   const struct timespec *" abs_timeout );
 .fi
+.sp
+Link with \fI\-lrt\fP.
 .SH DESCRIPTION
 .BR mq_receive ()
 removes the oldest message with the highest priority from

man3/mq_send.3

@@ -38,6 +38,8 @@ mq_send, mq_timedsend \- send a message to a message queue
 .BI "              size_t " msg_len ", unsigned " msg_prio ,
 .BI "              const struct timespec *" abs_timeout );
 .fi
+.sp
+Link with \fI\-lrt\fP.
 .SH DESCRIPTION
 .BR mq_send ()
 adds the message pointed to by

man3/mq_unlink.3

@@ -29,6 +29,8 @@ mq_unlink \- remove a message queue
 .sp
 .BI "mqd_t mq_unlink(const char *" name );
 .fi
+.sp
+Link with \fI\-lrt\fP.
 .SH DESCRIPTION
 .BR mq_unlink ()
 removes the specified message queue