Prevent double inclusion.

7 files changed, 42 insertions, 9 deletions

diff --git a/bits/byteswap.h b/bits/byteswap.h
index 7866abe9c2..38d8540130 100644
--- a/bits/byteswap.h
+++ b/bits/byteswap.h
@@ -1,5 +1,5 @@
 /* Macros to swap the order of bytes in integer values.
-   Copyright (C) 1997, 1998, 2000, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2000, 2001, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -21,6 +21,9 @@
 # error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
 #endif
 
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
 /* Swap bytes in 16 bit value.  */
 #ifdef __GNUC__
 # define __bswap_16(x) \
@@ -77,3 +80,5 @@ __bswap_32 (unsigned int __bsx)
 	   }								      \
 	 __r.__ll; }))
 #endif
+
+#endif /* _BITS_BYTESWAP_H */
diff --git a/sysdeps/generic/bits/byteswap.h b/sysdeps/generic/bits/byteswap.h
index 7866abe9c2..38d8540130 100644
--- a/sysdeps/generic/bits/byteswap.h
+++ b/sysdeps/generic/bits/byteswap.h
@@ -1,5 +1,5 @@
 /* Macros to swap the order of bytes in integer values.
-   Copyright (C) 1997, 1998, 2000, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2000, 2001, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -21,6 +21,9 @@
 # error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
 #endif
 
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
 /* Swap bytes in 16 bit value.  */
 #ifdef __GNUC__
 # define __bswap_16(x) \
@@ -77,3 +80,5 @@ __bswap_32 (unsigned int __bsx)
 	   }								      \
 	 __r.__ll; }))
 #endif
+
+#endif /* _BITS_BYTESWAP_H */
diff --git a/sysdeps/i386/bits/byteswap.h b/sysdeps/i386/bits/byteswap.h
index c76b0814d5..d08a342ab7 100644
--- a/sysdeps/i386/bits/byteswap.h
+++ b/sysdeps/i386/bits/byteswap.h
@@ -1,5 +1,5 @@
 /* Macros to swap the order of bytes in integer values.
-   Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2000, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -21,6 +21,9 @@
 # error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
 #endif
 
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
 /* Swap bytes in 16 bit value.  */
 #define __bswap_constant_16(x) \
      ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
@@ -108,3 +111,5 @@
 	   }								      \
 	 __r.__ll; }))
 #endif
+
+#endif /* _BITS_BYTESWAP_H */
diff --git a/sysdeps/ia64/bits/byteswap.h b/sysdeps/ia64/bits/byteswap.h
index 012a40ee4b..285102c3df 100644
--- a/sysdeps/ia64/bits/byteswap.h
+++ b/sysdeps/ia64/bits/byteswap.h
@@ -1,5 +1,5 @@
 /* Macros to swap the order of bytes in integer values.
-   Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2000, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -21,6 +21,9 @@
 # error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
 #endif
 
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
 /* Swap bytes in 16 bit value.  */
 #define __bswap_constant_16(x) \
      ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
@@ -91,3 +94,5 @@
 #else
 # define __bswap_64(x) __bswap_constant_64 (x)
 #endif
+
+#endif /* _BITS_BYTESWAP_H */
diff --git a/sysdeps/m68k/bits/byteswap.h b/sysdeps/m68k/bits/byteswap.h
index ea6aa964b0..549d4452ef 100644
--- a/sysdeps/m68k/bits/byteswap.h
+++ b/sysdeps/m68k/bits/byteswap.h
@@ -1,5 +1,5 @@
 /* Macros to swap the order of bytes in integer values.  m68k version.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -21,6 +21,9 @@
 # error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
 #endif
 
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
 /* Swap bytes in 16 bit value.  We don't provide an assembler version
    because GCC is smart enough to generate optimal assembler output, and
    this allows for better cse.  */
@@ -60,3 +63,5 @@
      __bswap_64_r.__l[1] = __bswap_32 (__bswap_64_v.__l[0]);		\
      __bswap_64_r.__ll; })
 #endif
+
+#endif /* _BITS_BYTESWAP_H */
diff --git a/sysdeps/s390/s390-32/bits/byteswap.h b/sysdeps/s390/s390-32/bits/byteswap.h
index 0f2de099b2..ae128042f1 100644
--- a/sysdeps/s390/s390-32/bits/byteswap.h
+++ b/sysdeps/s390/s390-32/bits/byteswap.h
@@ -1,5 +1,5 @@
 /* Macros to swap the order of bytes in integer values.  s390 version.
-   Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
    Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
@@ -22,6 +22,9 @@
 # error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
 #endif
 
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
 #define __bswap_constant_16(x) \
      ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
 
@@ -84,3 +87,5 @@
      __r.__l[1] = __bswap_32 (__w.__l[0]);		\
      __r.__ll; })
 #endif
+
+#endif /* _BITS_BYTESWAP_H */
diff --git a/sysdeps/s390/s390-64/bits/byteswap.h b/sysdeps/s390/s390-64/bits/byteswap.h
index 3af2ccecde..b8cfdb2cb5 100644
--- a/sysdeps/s390/s390-64/bits/byteswap.h
+++ b/sysdeps/s390/s390-64/bits/byteswap.h
@@ -1,5 +1,5 @@
 /* Macros to swap the order of bytes in integer values.  64 bit S/390 version.
-   Copyright (C) 2001 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002 Free Software Foundation, Inc.
    Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
@@ -22,6 +22,9 @@
 # error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
 #endif
 
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
 #define __bswap_constant_16(x) \
      ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
 
@@ -29,7 +32,7 @@
 #if defined __GNUC__ && __GNUC__ >= 2
 # define __bswap_16(x) \
      (__extension__							      \
-      ({ unsigned short int __v; 		                              \
+      ({ unsigned short int __v;		                              \
 	 if (__builtin_constant_p (x))					      \
 	   __v = __bswap_constant_16 (x);				      \
 	 else {								      \
@@ -90,4 +93,4 @@
 # define __bswap_64(x) __bswap_constant_64 (x)
 #endif
 
-
+#endif /* _BITS_BYTESWAP_H */