sync with glibc

include/sys/param.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 1996, 1997, 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1997,2000,2001,2003 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
@@ -49,10 +49,16 @@
 
 /* Macros for counting and rounding.  */
 #ifndef howmany
-# define howmany(x, y)	(((x)+((y)-1))/(y))
+# define howmany(x, y)	(((x) + ((y) - 1)) / (y))
 #endif
-#define	roundup(x, y)	((((x)+((y)-1))/(y))*(y))
+#ifdef __GNUC__
-#define powerof2(x)	((((x)-1)&(x))==0)
+# define roundup(x, y)	(__builtin_constant_p (y) && powerof2 (y)	      \
+			 ? (((x) + (y) - 1) & ~((y) - 1))		      \
+			 : ((((x) + ((y) - 1)) / (y)) * (y)))
+#else
+# define roundup(x, y)	((((x) + ((y) - 1)) / (y)) * (y))
+#endif
+#define powerof2(x)	((((x) - 1) & (x)) == 0)
 
 /* Macros for min/max.  */
 #define	MIN(a,b) (((a)<(b))?(a):(b))

include/sys/sysctl.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1999, 2002, 2003, 2004 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
@@ -17,16 +17,52 @@
    02111-1307 USA.  */
 
 #ifndef	_SYS_SYSCTL_H
-
 #define	_SYS_SYSCTL_H	1
-#include <features.h>
-
-__BEGIN_DECLS
 
+#include <features.h>
 #define __need_size_t
 #include <stddef.h>
+/* Prevent more kernel headers than necessary to be included.  */
+#ifndef _LINUX_KERNEL_H
+# define _LINUX_KERNEL_H	1
+# define __undef_LINUX_KERNEL_H
+#endif
+#ifndef _LINUX_TYPES_H
+# define _LINUX_TYPES_H		1
+# define __undef_LINUX_TYPES_H
+#endif
+#ifndef _LINUX_LIST_H
+# define _LINUX_LIST_H		1
+# define __undef_LINUX_LIST_H
+#endif
+#ifndef __LINUX_COMPILER_H
+# define __LINUX_COMPILER_H	1
+# define __user
+# define __undef__LINUX_COMPILER_H
+#endif
+
 #include <linux/sysctl.h>
 
+#ifdef __undef_LINUX_KERNEL_H
+# undef _LINUX_KERNEL_H
+# undef __undef_LINUX_KERNEL_H
+#endif
+#ifdef __undef_LINUX_TYPES_H
+# undef _LINUX_TYPES_H
+# undef __undef_LINUX_TYPES_H
+#endif
+#ifdef __undef_LINUX_LIST_H
+# undef _LINUX_LIST_H
+# undef __undef_LINUX_LIST_H
+#endif
+#ifdef __undef__LINUX_COMPILER_H
+# undef __LINUX_COMPILER_H
+# undef __user
+# undef __undef__LINUX_COMPILER_H
+#endif
+
+__BEGIN_DECLS
+
 /* Read or write system parameters.  */
 extern int sysctl (int *__name, int __nlen, void *__oldval,
 		   size_t *__oldlenp, void *__newval, size_t __newlen) __THROW;