Linux: mq_* syscall numbers are always available

Due to the built-in tables, __NR_mq_getsetattr, __NR_mq_notify,
__NR_mq_open, __NR_mq_timedreceive, __NR_mq_timedsend, __NR_mq_unlink
are always defined.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>

sysdeps/unix/sysv/linux/mq_close.c

@@ -19,8 +19,6 @@
 #include <mqueue.h>
 #include <sysdep.h>
 
-#ifdef __NR_mq_open
-
 /* Removes the association between message queue descriptor MQDES and its
    message queue.  */
 int
@@ -28,7 +26,3 @@ mq_close (mqd_t mqdes)
 {
   return INLINE_SYSCALL (close, 1, mqdes);
 }
-
-#else
-# include <rt/mq_close.c>
-#endif

sysdeps/unix/sysv/linux/mq_getattr.c

@@ -20,15 +20,9 @@
 #include <stddef.h>
 #include <sysdep.h>
 
-#ifdef __NR_mq_getsetattr
-
 /* Query status and attributes of message queue MQDES.  */
 int
 mq_getattr (mqd_t mqdes, struct mq_attr *mqstat)
 {
   return mq_setattr (mqdes, NULL, mqstat);
 }
-
-#else
-# include <rt/mq_getattr.c>
-#endif

sysdeps/unix/sysv/linux/mq_notify.c

@@ -31,8 +31,6 @@
 #include <nptl/pthreadP.h>
 
 
-#ifdef __NR_mq_notify
-
 /* Defined in the kernel headers: */
 #define NOTIFY_COOKIE_LEN	32	/* Length of the cookie used.  */
 #define NOTIFY_WOKENUP		1	/* Code for notifcation.  */
@@ -276,7 +274,3 @@ mq_notify (mqd_t mqdes, const struct sigevent *notification)
 
   return retval;
 }
-
-#else
-# include <rt/mq_notify.c>
-#endif

sysdeps/unix/sysv/linux/mq_open.c

@@ -22,8 +22,6 @@
 #include <stdio.h>
 #include <sysdep.h>
 
-#ifdef __NR_mq_open
-
 /* Establish connection between a process and a message queue NAME and
    return message queue descriptor or (mqd_t) -1 on error.  OFLAG determines
    the type of access used.  If O_CREAT is on OFLAG, the third argument is
@@ -61,6 +59,3 @@ __mq_open_2 (const char *name, int oflag)
 
   return __mq_open (name, oflag);
 }
-#else
-# include <rt/mq_open.c>
-#endif

sysdeps/unix/sysv/linux/mq_receive.c

@@ -20,8 +20,6 @@
 #include <stddef.h>
 #include <sysdep.h>
 
-#ifdef __NR_mq_timedreceive
-
 /* Receive the oldest from highest priority messages in message queue
    MQDES.  */
 ssize_t
@@ -30,7 +28,3 @@ mq_receive (mqd_t mqdes, char *msg_ptr, size_t msg_len,
 {
   return __mq_timedreceive (mqdes, msg_ptr, msg_len, msg_prio, NULL);
 }
-
-#else
-# include <rt/mq_receive.c>
-#endif

sysdeps/unix/sysv/linux/mq_send.c

@@ -20,8 +20,6 @@
 #include <stddef.h>
 #include <sysdep.h>
 
-#ifdef __NR_mq_timedsend
-
 /* Add message pointed by MSG_PTR to message queue MQDES.  */
 int
 mq_send (mqd_t mqdes, const char *msg_ptr, size_t msg_len,
@@ -29,7 +27,3 @@ mq_send (mqd_t mqdes, const char *msg_ptr, size_t msg_len,
 {
   return __mq_timedsend (mqdes, msg_ptr, msg_len, msg_prio, NULL);
 }
-
-#else
-# include <rt/mq_send.c>
-#endif

sysdeps/unix/sysv/linux/mq_unlink.c

@@ -19,8 +19,6 @@
 #include <mqueue.h>
 #include <sysdep.h>
 
-#ifdef __NR_mq_unlink
-
 /* Remove message queue named NAME.  */
 int
 mq_unlink (const char *name)
@@ -42,7 +40,3 @@ mq_unlink (const char *name)
 
   return ret;
 }
-
-#else
-# include <rt/mq_unlink.c>
-#endif