Fix include/bits/ipc.h for header conformance tests

[Joseph Myers <joseph at codesourcery dot com>]

Ten conformtest failures arise from the internal header
include/bits/ipc.h failing to condition internal declarations, outside
the public namespace of headers including bits/ipc.h, on [!_ISOMAC].
This patch adds the usual conditionals to that header.  (Ten further
failures for other headers including bits/ipc.h remain because of
other conformance issues in those headers.)

Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).

2015-06-18  Joseph Myers  <joseph@codesourcery.com>

	* include/bits/ipc.h [_ISOMAC]: Disable all header contents except
	#include_next.
	* conform/Makefile (test-xfail-XPG3/sys/msg.h/conform): Remove
	variable.
	(test-xfail-XPG3/sys/shm.h/conform): Likewise.
	(test-xfail-XPG4/sys/msg.h/conform): Likewise.
	(test-xfail-XPG4/sys/shm.h/conform): Likewise.
	(test-xfail-UNIX98/sys/msg.h/conform): Likewise.
	(test-xfail-UNIX98/sys/shm.h/conform): Likewise.
	(test-xfail-XOPEN2K/sys/msg.h/conform): Likewise.
	(test-xfail-XOPEN2K/sys/shm.h/conform): Likewise.
	(test-xfail-XOPEN2K8/sys/msg.h/conform): Likewise.
	(test-xfail-XOPEN2K8/sys/shm.h/conform): Likewise.

diff --git a/conform/Makefile b/conform/Makefile
index 30eaa64..4acafa3 100644
--- a/conform/Makefile
+++ b/conform/Makefile
@@ -179,9 +179,7 @@ test-xfail-XPG3/stdio.h/conform = yes
 test-xfail-XPG3/stdlib.h/conform = yes
 test-xfail-XPG3/string.h/conform = yes
 test-xfail-XPG3/sys/ipc.h/conform = yes
-test-xfail-XPG3/sys/msg.h/conform = yes
 test-xfail-XPG3/sys/sem.h/conform = yes
-test-xfail-XPG3/sys/shm.h/conform = yes
 test-xfail-XPG3/sys/stat.h/conform = yes
 test-xfail-XPG3/sys/types.h/conform = yes
 test-xfail-XPG3/sys/wait.h/conform = yes
@@ -198,9 +196,7 @@ test-xfail-XPG4/stdio.h/conform = yes
 test-xfail-XPG4/stdlib.h/conform = yes
 test-xfail-XPG4/stropts.h/conform = yes
 test-xfail-XPG4/sys/ipc.h/conform = yes
-test-xfail-XPG4/sys/msg.h/conform = yes
 test-xfail-XPG4/sys/sem.h/conform = yes
-test-xfail-XPG4/sys/shm.h/conform = yes
 test-xfail-XPG4/sys/socket.h/conform = yes
 test-xfail-XPG4/sys/stat.h/conform = yes
 test-xfail-XPG4/sys/time.h/conform = yes
@@ -221,9 +217,7 @@ test-xfail-UNIX98/stdio.h/conform = yes
 test-xfail-UNIX98/stdlib.h/conform = yes
 test-xfail-UNIX98/stropts.h/conform = yes
 test-xfail-UNIX98/sys/ipc.h/conform = yes
-test-xfail-UNIX98/sys/msg.h/conform = yes
 test-xfail-UNIX98/sys/sem.h/conform = yes
-test-xfail-UNIX98/sys/shm.h/conform = yes
 test-xfail-UNIX98/sys/socket.h/conform = yes
 test-xfail-UNIX98/sys/time.h/conform = yes
 test-xfail-UNIX98/sys/wait.h/conform = yes
@@ -241,9 +235,7 @@ test-xfail-XOPEN2K/stdarg.h/conform = yes
 test-xfail-XOPEN2K/stdio.h/conform = yes
 test-xfail-XOPEN2K/stropts.h/conform = yes
 test-xfail-XOPEN2K/sys/ipc.h/conform = yes
-test-xfail-XOPEN2K/sys/msg.h/conform = yes
 test-xfail-XOPEN2K/sys/sem.h/conform = yes
-test-xfail-XOPEN2K/sys/shm.h/conform = yes
 test-xfail-XOPEN2K/sys/socket.h/conform = yes
 test-xfail-XOPEN2K/sys/wait.h/conform = yes
 test-xfail-XOPEN2K/termios.h/conform = yes
@@ -265,10 +257,8 @@ test-xfail-XOPEN2K8/signal.h/conform = yes
 test-xfail-XOPEN2K8/stdio.h/conform = yes
 test-xfail-XOPEN2K8/stropts.h/conform = yes
 test-xfail-XOPEN2K8/sys/ipc.h/conform = yes
-test-xfail-XOPEN2K8/sys/msg.h/conform = yes
 test-xfail-XOPEN2K8/sys/select.h/conform = yes
 test-xfail-XOPEN2K8/sys/sem.h/conform = yes
-test-xfail-XOPEN2K8/sys/shm.h/conform = yes
 test-xfail-XOPEN2K8/sys/socket.h/conform = yes
 test-xfail-XOPEN2K8/sys/time.h/conform = yes
 test-xfail-XOPEN2K8/sys/wait.h/conform = yes
diff --git a/include/bits/ipc.h b/include/bits/ipc.h
index 481fe91..eb4a7bd 100644
--- a/include/bits/ipc.h
+++ b/include/bits/ipc.h
@@ -1,5 +1,6 @@
 #include_next <bits/ipc.h>
 
+#ifndef _ISOMAC
 __BEGIN_DECLS
 
 /* The actual system call: all functions are multiplexed by this.  */
@@ -10,14 +11,15 @@ __END_DECLS
 
 
 /* The codes for the functions to use the multiplexer `__syscall_ipc'.  */
-#define IPCOP_semop	 1
-#define IPCOP_semget	 2
-#define IPCOP_semctl	 3
-#define IPCOP_msgsnd	11
-#define IPCOP_msgrcv	12
-#define IPCOP_msgget	13
-#define IPCOP_msgctl	14
-#define IPCOP_shmat	21
-#define IPCOP_shmdt	22
-#define IPCOP_shmget	23
-#define IPCOP_shmctl	24
+# define IPCOP_semop	 1
+# define IPCOP_semget	 2
+# define IPCOP_semctl	 3
+# define IPCOP_msgsnd	11
+# define IPCOP_msgrcv	12
+# define IPCOP_msgget	13
+# define IPCOP_msgctl	14
+# define IPCOP_shmat	21
+# define IPCOP_shmdt	22
+# define IPCOP_shmget	23
+# define IPCOP_shmctl	24
+#endif

-- 
Joseph S. Myers
joseph@codesourcery.com