3 files changed, 10 insertions, 7 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/ioctl-types.h b/sysdeps/unix/sysv/linux/powerpc/bits/ioctl-types.h
index 9e2695652e..87b8265afd 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/ioctl-types.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/ioctl-types.h
@@ -1 +1,5 @@
+#ifndef _SYS_IOCTL_H
+# error "Never use <bits/ioctl-types.h> directly; include <sys/ioctl.h> instead."
+#endif
+
 #include <termios.h>
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/mman.h b/sysdeps/unix/sysv/linux/powerpc/bits/mman.h
index 6d240c4b7a..d863f0955b 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/mman.h
@@ -1,4 +1,4 @@
-/* Definitions for POSIX memory map inerface.  Linux/PowerPC version.
+/* Definitions for POSIX memory map interface.  Linux/PowerPC version.
    Copyright (C) 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -18,7 +18,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #ifndef _SYS_MMAN_H
-# error "Never include this file directly.  Use <sys/mman.h> instead"
+# error "Never use <bits/mman.h> directly; iclude <sys/mman.h> instead."
 #endif
 
 /* The following definitions basically come from the kernel headers.
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/termios.h b/sysdeps/unix/sysv/linux/powerpc/bits/termios.h
index 4c6073bfc2..d1a40be33c 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/termios.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/termios.h
@@ -16,8 +16,9 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef _TERMBITS_H
-#define _TERMBITS_H	1
+#ifndef _TERMIOS_H
+# error "Never include <bits/termios.h> directly; use <termios.h> instead."
+#endif
 
 typedef unsigned char	cc_t;
 typedef unsigned int	speed_t;
@@ -73,7 +74,7 @@ struct termios {
 #define ICRNL	0000400
 #define IXON	0001000
 #define IXOFF	0002000
-#if !defined(KERNEL) || defined(__USE_BSD)
+#if !defined KERNEL || defined __USE_BSD
   /* POSIX.1 doesn't want these... */
 # define IXANY		0004000
 # define IUCLC		0010000
@@ -276,5 +277,3 @@ struct termio {
 #define N_SLIP		1
 #define N_MOUSE		2
 #define N_PPP		3
-
-#endif /* _TERMBITS_H */