sync with upstream via psm

21 files changed, 502 insertions, 282 deletions

diff --git a/libc/sysdeps/linux/common/bits/confname.h b/libc/sysdeps/linux/common/bits/confname.h
index a66f85aac..ab7fdee9d 100644
--- a/libc/sysdeps/linux/common/bits/confname.h
+++ b/libc/sysdeps/linux/common/bits/confname.h
@@ -63,8 +63,10 @@ enum
 #define _PC_REC_XFER_ALIGN		_PC_REC_XFER_ALIGN
     _PC_ALLOC_SIZE_MIN,
 #define _PC_ALLOC_SIZE_MIN		_PC_ALLOC_SIZE_MIN
-    _PC_SYMLINK_MAX
+    _PC_SYMLINK_MAX,
 #define _PC_SYMLINK_MAX			_PC_SYMLINK_MAX
+    _PC_2_SYMLINKS
+#define _PC_2_SYMLINKS			_PC_2_SYMLINKS
   };
 
 /* Values for the argument to `sysconf'.  */
@@ -459,8 +461,45 @@ enum
 #define _SC_TRACE_EVENT_FILTER		_SC_TRACE_EVENT_FILTER
     _SC_TRACE_INHERIT,
 #define _SC_TRACE_INHERIT		_SC_TRACE_INHERIT
-    _SC_TRACE_LOG
+    _SC_TRACE_LOG,
 #define _SC_TRACE_LOG			_SC_TRACE_LOG
+
+    _SC_LEVEL1_ICACHE_SIZE,
+#define _SC_LEVEL1_ICACHE_SIZE		_SC_LEVEL1_ICACHE_SIZE
+    _SC_LEVEL1_ICACHE_ASSOC,
+#define _SC_LEVEL1_ICACHE_ASSOC		_SC_LEVEL1_ICACHE_ASSOC
+    _SC_LEVEL1_ICACHE_LINESIZE,
+#define _SC_LEVEL1_ICACHE_LINESIZE	_SC_LEVEL1_ICACHE_LINESIZE
+    _SC_LEVEL1_DCACHE_SIZE,
+#define _SC_LEVEL1_DCACHE_SIZE		_SC_LEVEL1_DCACHE_SIZE
+    _SC_LEVEL1_DCACHE_ASSOC,
+#define _SC_LEVEL1_DCACHE_ASSOC		_SC_LEVEL1_DCACHE_ASSOC
+    _SC_LEVEL1_DCACHE_LINESIZE,
+#define _SC_LEVEL1_DCACHE_LINESIZE	_SC_LEVEL1_DCACHE_LINESIZE
+    _SC_LEVEL2_CACHE_SIZE,
+#define _SC_LEVEL2_CACHE_SIZE		_SC_LEVEL2_CACHE_SIZE
+    _SC_LEVEL2_CACHE_ASSOC,
+#define _SC_LEVEL2_CACHE_ASSOC		_SC_LEVEL2_CACHE_ASSOC
+    _SC_LEVEL2_CACHE_LINESIZE,
+#define _SC_LEVEL2_CACHE_LINESIZE	_SC_LEVEL2_CACHE_LINESIZE
+    _SC_LEVEL3_CACHE_SIZE,
+#define _SC_LEVEL3_CACHE_SIZE		_SC_LEVEL3_CACHE_SIZE
+    _SC_LEVEL3_CACHE_ASSOC,
+#define _SC_LEVEL3_CACHE_ASSOC		_SC_LEVEL3_CACHE_ASSOC
+    _SC_LEVEL3_CACHE_LINESIZE,
+#define _SC_LEVEL3_CACHE_LINESIZE	_SC_LEVEL3_CACHE_LINESIZE
+    _SC_LEVEL4_CACHE_SIZE,
+#define _SC_LEVEL4_CACHE_SIZE		_SC_LEVEL4_CACHE_SIZE
+    _SC_LEVEL4_CACHE_ASSOC,
+#define _SC_LEVEL4_CACHE_ASSOC		_SC_LEVEL4_CACHE_ASSOC
+    _SC_LEVEL4_CACHE_LINESIZE,
+#define _SC_LEVEL4_CACHE_LINESIZE	_SC_LEVEL4_CACHE_LINESIZE
+    /* Leave room here, maybe we need a few more cache levels some day.  */
+
+    _SC_IPV6 = _SC_LEVEL1_ICACHE_SIZE + 50,
+#define _SC_IPV6			_SC_IPV6
+    _SC_RAW_SOCKETS
+#define _SC_RAW_SOCKETS			_SC_RAW_SOCKETS
   };
 
 #if (defined __USE_POSIX2 || defined __USE_UNIX98 \
diff --git a/libc/sysdeps/linux/common/bits/dlfcn.h b/libc/sysdeps/linux/common/bits/dlfcn.h
index 75122a98a..f68849843 100644
--- a/libc/sysdeps/linux/common/bits/dlfcn.h
+++ b/libc/sysdeps/linux/common/bits/dlfcn.h
@@ -1,5 +1,5 @@
 /* System dependent definitions for run-time dynamic loading.
-   Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
+   Copyright (C) 1996-2001, 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
@@ -26,6 +26,7 @@
 #define RTLD_NOW	0x00002	/* Immediate function call binding.  */
 #define	RTLD_BINDING_MASK   0x3	/* Mask of binding time value.  */
 #define RTLD_NOLOAD	0x00004	/* Do not load the object.  */
+#define RTLD_DEEPBIND	0x00008	/* Use deep binding.  */
 
 /* If the following bit is set in the MODE argument to `dlopen',
    the symbols of the loaded object and its dependencies are made
@@ -40,3 +41,25 @@
 /* Do not delete object when closed.  */
 #define RTLD_NODELETE	0x01000
 
+#if 0 /*def __USE_GNU*/
+/* To support profiling of shared objects it is a good idea to call
+   the function found using `dlsym' using the following macro since
+   these calls do not use the PLT.  But this would mean the dynamic
+   loader has no chance to find out when the function is called.  The
+   macro applies the necessary magic so that profiling is possible.
+   Rewrite
+	foo = (*fctp) (arg1, arg2);
+   into
+        foo = DL_CALL_FCT (fctp, (arg1, arg2));
+*/
+# define DL_CALL_FCT(fctp, args) \
+  (_dl_mcount_wrapper_check ((void *) (fctp)), (*(fctp)) args)
+
+__BEGIN_DECLS
+
+/* This function calls the profiling functions.  */
+extern void _dl_mcount_wrapper_check (void *__selfpc) __THROW;
+
+__END_DECLS
+
+#endif
diff --git a/libc/sysdeps/linux/common/bits/huge_val.h b/libc/sysdeps/linux/common/bits/huge_val.h
index b33974364..11ca11f18 100644
--- a/libc/sysdeps/linux/common/bits/huge_val.h
+++ b/libc/sysdeps/linux/common/bits/huge_val.h
@@ -1,6 +1,7 @@
-/* `HUGE_VAL' constants for IEEE 754 machines (where it is infinity).
+/* `HUGE_VAL' constant for IEEE 754 machines (where it is infinity).
    Used by <stdlib.h> and <math.h> functions for overflow.
-   Copyright (C) 1992, 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1992, 1995, 1996, 1997, 1999, 2000, 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
@@ -22,25 +23,19 @@
 # error "Never use <bits/huge_val.h> directly; include <math.h> instead."
 #endif
 
-#include <features.h>
-
 /* IEEE positive infinity (-HUGE_VAL is negative infinity).  */
 
-#ifdef	__GNUC__
-
-# if __GNUC_PREREQ(2,96)
-
-#  define HUGE_VAL (__extension__ 0x1.0p2047)
+#if __GNUC_PREREQ(3,3)
+# define HUGE_VAL	(__builtin_huge_val())
+#elif __GNUC_PREREQ(2,96)
+# define HUGE_VAL	(__extension__ 0x1.0p2047)
+#elif defined __GNUC__
 
-# else
-
-#  define HUGE_VAL \
+# define HUGE_VAL \
   (__extension__							      \
    ((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; })   \
     { __l: 0x7ff0000000000000ULL }).__d)
 
-# endif
-
 #else /* not GCC */
 
 # include <endian.h>
@@ -58,46 +53,3 @@ static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
 # define HUGE_VAL	(__huge_val.__d)
 
 #endif	/* GCC.  */
-
-
-/* ISO C99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL.  */
-
-#ifdef __USE_ISOC99
-
-# ifdef __GNUC__
-
-#  if __GNUC_PREREQ(2,96)
-
-#   define HUGE_VALF (__extension__ 0x1.0p255f)
-
-#  else
-
-#   define HUGE_VALF \
-  (__extension__							      \
-   ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; })    \
-    { __l: 0x7f800000UL }).__d)
-
-#  endif
-
-# else /* not GCC */
-
-typedef union { unsigned char __c[4]; float __f; } __huge_valf_t;
-
-#  if __BYTE_ORDER == __BIG_ENDIAN
-#   define __HUGE_VALF_bytes	{ 0x7f, 0x80, 0, 0 }
-#  endif
-#  if __BYTE_ORDER == __LITTLE_ENDIAN
-#   define __HUGE_VALF_bytes	{ 0, 0, 0x80, 0x7f }
-#  endif
-
-static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
-#  define HUGE_VALF	(__huge_valf.__f)
-
-# endif	/* GCC.  */
-
-
-/* Generally there is no separate `long double' format and it is the
-   same as `double'.  */
-# define HUGE_VALL HUGE_VAL
-
-#endif /* __USE_ISOC99.  */
diff --git a/libc/sysdeps/linux/common/bits/huge_valf.h b/libc/sysdeps/linux/common/bits/huge_valf.h
new file mode 100644
index 000000000..1785342cd
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/huge_valf.h
@@ -0,0 +1,53 @@
+/* `HUGE_VALF' constant for IEEE 754 machines (where it is infinity).
+   Used by <stdlib.h> and <math.h> functions for overflow.
+   Copyright (C) 1992, 1995, 1996, 1997, 1999, 2000, 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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/huge_valf.h> directly; include <math.h> instead."
+#endif
+
+/* IEEE positive infinity (-HUGE_VAL is negative infinity).  */
+
+#if __GNUC_PREREQ(3,3)
+# define HUGE_VALF	(__builtin_huge_valf())
+#elif __GNUC_PREREQ(2,96)
+# define HUGE_VALF	(__extension__ 0x1.0p255f)
+#elif defined __GNUC__
+
+#   define HUGE_VALF \
+  (__extension__							      \
+   ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; })    \
+    { __l: 0x7f800000UL }).__d)
+
+#else /* not GCC */
+
+typedef union { unsigned char __c[4]; float __f; } __huge_valf_t;
+
+# if __BYTE_ORDER == __BIG_ENDIAN
+#  define __HUGE_VALF_bytes	{ 0x7f, 0x80, 0, 0 }
+# endif
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#  define __HUGE_VALF_bytes	{ 0, 0, 0x80, 0x7f }
+# endif
+
+static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
+# define HUGE_VALF	(__huge_valf.__f)
+
+#endif	/* GCC.  */
diff --git a/libc/sysdeps/linux/common/bits/huge_vall.h b/libc/sysdeps/linux/common/bits/huge_vall.h
new file mode 100644
index 000000000..d5e8e2237
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/huge_vall.h
@@ -0,0 +1,29 @@
+/* Default `HUGE_VALL' constant.
+   Used by <stdlib.h> and <math.h> functions for overflow.
+   Copyright (C) 1992, 1996, 1997, 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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/huge_vall.h> directly; include <math.h> instead."
+#endif
+
+#if __GNUC_PREREQ(3,3)
+# define HUGE_VALL	(__builtin_huge_vall())
+#else
+# define HUGE_VALL	((long double) HUGE_VAL)
+#endif
diff --git a/libc/sysdeps/linux/common/bits/inf.h b/libc/sysdeps/linux/common/bits/inf.h
new file mode 100644
index 000000000..1619f756e
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/inf.h
@@ -0,0 +1,30 @@
+/* `INFINITY' constant for IEEE 754 machines.
+   Copyright (C) 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
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/inf.h> directly; include <math.h> instead."
+#endif
+
+/* IEEE positive infinity.  */
+
+#if __GNUC_PREREQ(3,3)
+# define INFINITY	(__builtin_inff())
+#else
+# define INFINITY	HUGE_VALF
+#endif
diff --git a/libc/sysdeps/linux/common/bits/local_lim.h b/libc/sysdeps/linux/common/bits/local_lim.h
index d4671e4a8..b639ba44a 100644
--- a/libc/sysdeps/linux/common/bits/local_lim.h
+++ b/libc/sysdeps/linux/common/bits/local_lim.h
@@ -1,11 +1,11 @@
 /* Minimum guaranteed maximum values for system limits.  Linux version.
-   Copyright (C) 1993-1998, 2000, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 1993-1998,2000,2002,2003,2004 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
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
+   modify it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
 
    The GNU C Library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,9 +13,9 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
 
 /* The kernel header pollutes the namespace with the NR_OPEN symbol
    and defines LINK_MAX although filesystems have different maxima.  A
@@ -63,16 +63,19 @@
 
 /* The number of threads per process.  */
 #define _POSIX_THREAD_THREADS_MAX	64
-/* This is the value this implementation supports.  */
-#define PTHREAD_THREADS_MAX	1024
-
-/* Minimum size for a thread.  We are free to choose a reasonable value.  */
-#define PTHREAD_STACK_MIN	16384
+/* We have no predefined limit on the number of threads.  */
+#undef PTHREAD_THREADS_MAX
 
 /* Maximum amount by which a process can descrease its asynchronous I/O
    priority level.  */
 #define AIO_PRIO_DELTA_MAX	20
 
+/* Minimum size for a thread.  We are free to choose a reasonable value.  */
+#define PTHREAD_STACK_MIN	16384
+
+/* Maximum number of timer expiration overruns.  */
+#define DELAYTIMER_MAX	2147483647
+
 /* Maximum tty name length.  */
 #define TTY_NAME_MAX		32
 
@@ -84,6 +87,3 @@
 
 /* Maximum message queue priority level.  */
 #define MQ_PRIO_MAX		32768
-
-/* Maximum number of POSIX timers available.  */
-#define TIMER_MAX	256
diff --git a/libc/sysdeps/linux/common/bits/locale.h b/libc/sysdeps/linux/common/bits/locale.h
index 50064b53e..5d5178361 100644
--- a/libc/sysdeps/linux/common/bits/locale.h
+++ b/libc/sysdeps/linux/common/bits/locale.h
@@ -33,12 +33,14 @@ enum
   __LC_MONETARY = 4,
   __LC_MESSAGES = 5,
   __LC_ALL = 6,
+#if 0
   __LC_PAPER = 7,
   __LC_NAME = 8,
   __LC_ADDRESS = 9,
   __LC_TELEPHONE = 10,
   __LC_MEASUREMENT = 11,
   __LC_IDENTIFICATION = 12
+#endif
 };
 
 #endif	/* bits/locale.h */
diff --git a/libc/sysdeps/linux/common/bits/mathcalls.h b/libc/sysdeps/linux/common/bits/mathcalls.h
index c1181f737..c02007284 100644
--- a/libc/sysdeps/linux/common/bits/mathcalls.h
+++ b/libc/sysdeps/linux/common/bits/mathcalls.h
@@ -1,5 +1,5 @@
 /* Prototype declarations for math functions; helper file for <math.h>.
-   Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
+   Copyright (C) 1996-2002, 2003, 2006 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
@@ -44,12 +44,13 @@
    NAME, to make token pasting work with -traditional.  */
 
 #ifndef _MATH_H
- #error "Never include <bits/mathcalls.h> directly; include <math.h> instead."
+# error "Never include <bits/mathcalls.h> directly; include <math.h> instead."
 #endif
 
 
 /* Trigonometric functions.  */
 
+_Mdouble_BEGIN_NAMESPACE
 /* Arc cosine of X.  */
 __MATHCALL (acos,, (_Mdouble_ __x));
 /* Arc sine of X.  */
@@ -66,12 +67,6 @@ __MATHCALL (sin,, (_Mdouble_ __x));
 /* Tangent of X.  */
 __MATHCALL (tan,, (_Mdouble_ __x));
 
-#ifdef __USE_GNU
-/* Cosine and sine of X.  */
-__MATHDECL (void,sincos,,
-	    (_Mdouble_ __x, _Mdouble_ *__sinx, _Mdouble_ *__cosx));
-#endif
-
 /* Hyperbolic functions.  */
 
 /* Hyperbolic cosine of X.  */
@@ -80,28 +75,31 @@ __MATHCALL (cosh,, (_Mdouble_ __x));
 __MATHCALL (sinh,, (_Mdouble_ __x));
 /* Hyperbolic tangent of X.  */
 __MATHCALL (tanh,, (_Mdouble_ __x));
+_Mdouble_END_NAMESPACE
+
+#if 0 /*def __USE_GNU*/
+/* Cosine and sine of X.  */
+__MATHDECL (void,sincos,,
+	    (_Mdouble_ __x, _Mdouble_ *__sinx, _Mdouble_ *__cosx));
+#endif
 
 #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 /* Hyperbolic arc cosine of X.  */
 __MATHCALL (acosh,, (_Mdouble_ __x));
 /* Hyperbolic arc sine of X.  */
 __MATHCALL (asinh,, (_Mdouble_ __x));
 /* Hyperbolic arc tangent of X.  */
 __MATHCALL (atanh,, (_Mdouble_ __x));
+__END_NAMESPACE_C99
 #endif
 
 /* Exponential and logarithmic functions.  */
 
+_Mdouble_BEGIN_NAMESPACE
 /* Exponential function of X.  */
 __MATHCALL (exp,, (_Mdouble_ __x));
 
-#ifdef __USE_GNU
-/* A function missing in all standards: compute exponent to base ten.  */
-__MATHCALL (exp10,, (_Mdouble_ __x));
-/* Another name occasionally used.  */
-__MATHCALL (pow10,, (_Mdouble_ __x));
-#endif
-
 /* Break VALUE into a normalized fraction and an integral power of 2.  */
 __MATHCALL (frexp,, (_Mdouble_ __x, int *__exponent));
 
@@ -116,8 +114,17 @@ __MATHCALL (log10,, (_Mdouble_ __x));
 
 /* Break VALUE into integral and fractional parts.  */
 __MATHCALL (modf,, (_Mdouble_ __x, _Mdouble_ *__iptr));
+_Mdouble_END_NAMESPACE
+
+#if 0 /*def __USE_GNU*/
+/* A function missing in all standards: compute exponent to base ten.  */
+__MATHCALL (exp10,, (_Mdouble_ __x));
+/* Another name occasionally used.  */
+__MATHCALL (pow10,, (_Mdouble_ __x));
+#endif
 
 #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 /* Return exp(X) - 1.  */
 __MATHCALL (expm1,, (_Mdouble_ __x));
 
@@ -126,46 +133,56 @@ __MATHCALL (log1p,, (_Mdouble_ __x));
 
 /* Return the base 2 signed integral exponent of X.  */
 __MATHCALL (logb,, (_Mdouble_ __x));
+__END_NAMESPACE_C99
 #endif
 
 #ifdef __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 /* Compute base-2 exponential of X.  */
 __MATHCALL (exp2,, (_Mdouble_ __x));
 
 /* Compute base-2 logarithm of X.  */
 __MATHCALL (log2,, (_Mdouble_ __x));
+__END_NAMESPACE_C99
 #endif
 
 
 /* Power functions.  */
 
+_Mdouble_BEGIN_NAMESPACE
 /* Return X to the Y power.  */
 __MATHCALL (pow,, (_Mdouble_ __x, _Mdouble_ __y));
 
 /* Return the square root of X.  */
 __MATHCALL (sqrt,, (_Mdouble_ __x));
+_Mdouble_END_NAMESPACE
 
 #if defined __USE_MISC || defined __USE_XOPEN || defined __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 /* Return `sqrt(X*X + Y*Y)'.  */
 __MATHCALL (hypot,, (_Mdouble_ __x, _Mdouble_ __y));
+__END_NAMESPACE_C99
 #endif
 
 #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 /* Return the cube root of X.  */
 __MATHCALL (cbrt,, (_Mdouble_ __x));
+__END_NAMESPACE_C99
 #endif
 
 
 /* Nearest integer, absolute value, and remainder functions.  */
 
+_Mdouble_BEGIN_NAMESPACE
 /* Smallest integral value not less than X.  */
-__MATHCALL (ceil,, (_Mdouble_ __x));
+__MATHCALLX (ceil,, (_Mdouble_ __x), (__const__));
 
 /* Absolute value of X.  */
 __MATHCALLX (fabs,, (_Mdouble_ __x), (__const__));
 
 /* Largest integer not greater than X.  */
-__MATHCALL (floor,, (_Mdouble_ __x));
+__MATHCALLX (floor,, (_Mdouble_ __x), (__const__));
 
 /* Floating-point modulo remainder of X/Y.  */
 __MATHCALL (fmod,, (_Mdouble_ __x, _Mdouble_ __y));
@@ -177,6 +194,7 @@ __MATHDECL_1 (int,__isinf,, (_Mdouble_ __value)) __attribute__ ((__const__));
 
 /* Return nonzero if VALUE is finite and not NaN.  */
 __MATHDECL_1 (int,__finite,, (_Mdouble_ __value)) __attribute__ ((__const__));
+_Mdouble_END_NAMESPACE
 
 #ifdef __USE_MISC
 /* Return 0 if VALUE is finite or NaN, +1 if it
@@ -195,13 +213,17 @@ __MATHCALL (significand,, (_Mdouble_ __x));
 #endif /* Use misc.  */
 
 #if defined __USE_MISC || defined __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 /* Return X with its signed changed to Y's.  */
 __MATHCALLX (copysign,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
+__END_NAMESPACE_C99
 #endif
 
 #ifdef __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 /* Return representation of NaN for double type.  */
 __MATHCALLX (nan,, (__const char *__tagb), (__const__));
+__END_NAMESPACE_C99
 #endif
 
 
@@ -223,14 +245,19 @@ __MATHCALL (yn,, (int, _Mdouble_));
 
 
 #if defined __USE_MISC || defined __USE_XOPEN || defined __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 /* Error and gamma functions.  */
 __MATHCALL (erf,, (_Mdouble_));
 __MATHCALL (erfc,, (_Mdouble_));
 __MATHCALL (lgamma,, (_Mdouble_));
+__END_NAMESPACE_C99
 #endif
 
 #ifdef __USE_ISOC99
+__BEGIN_NAMESPACE_C99
+/* True gamma function.  */
 __MATHCALL (tgamma,, (_Mdouble_));
+__END_NAMESPACE_C99
 #endif
 
 #if defined __USE_MISC || defined __USE_XOPEN
@@ -247,24 +274,20 @@ __MATHCALL (lgamma,_r, (_Mdouble_, int *__signgamp));
 
 
 #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+__BEGIN_NAMESPACE_C99
 /* Return the integer nearest X in the direction of the
    prevailing rounding mode.  */
 __MATHCALL (rint,, (_Mdouble_ __x));
 
 /* Return X + epsilon if X < Y, X - epsilon if X > Y.  */
 __MATHCALLX (nextafter,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
-# ifdef __USE_ISOC99
+# if defined __USE_ISOC99 && !defined __LDBL_COMPAT
 __MATHCALLX (nexttoward,, (_Mdouble_ __x, long double __y), (__const__));
 # endif
 
 /* Return the remainder of integer divison X / Y with infinite precision.  */
 __MATHCALL (remainder,, (_Mdouble_ __x, _Mdouble_ __y));
 
-# if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
-/* Return X times (2 to the Nth power).  */
-__MATHCALL (scalb,, (_Mdouble_ __x, _Mdouble_ __n));
-# endif
-
 # if defined __USE_MISC || defined __USE_ISOC99
 /* Return X times (2 to the Nth power).  */
 __MATHCALL (scalbn,, (_Mdouble_ __x, int __n));
@@ -284,7 +307,7 @@ __MATHCALL (nearbyint,, (_Mdouble_ __x));
 
 /* Round X to nearest integral value, rounding halfway cases away from
    zero.  */
-__MATHCALL (round,, (_Mdouble_ __x));
+__MATHCALLX (round,, (_Mdouble_ __x), (__const__));
 
 /* Round X to the integral value in floating-point format nearest but
    not larger in magnitude.  */
@@ -331,3 +354,12 @@ __MATHDECL_1 (int, __signbit,, (_Mdouble_ __value))
 /* Multiply-add function computed as a ternary operation.  */
 __MATHCALL (fma,, (_Mdouble_ __x, _Mdouble_ __y, _Mdouble_ __z));
 #endif /* Use ISO C99.  */
+
+#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+__END_NAMESPACE_C99
+#endif
+
+#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
+/* Return X times (2 to the Nth power).  */
+__MATHCALL (scalb,, (_Mdouble_ __x, _Mdouble_ __n));
+#endif
diff --git a/libc/sysdeps/linux/common/bits/mathdef.h b/libc/sysdeps/linux/common/bits/mathdef.h
index d08dc3820..00c67241a 100644
--- a/libc/sysdeps/linux/common/bits/mathdef.h
+++ b/libc/sysdeps/linux/common/bits/mathdef.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 1999, 2000, 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
@@ -30,10 +30,6 @@ typedef double float_t;		/* `float' expressions are evaluated as
 typedef double double_t;	/* `double' expressions are evaluated as
 				   `double'.  */
 
-/* Define `INFINITY' as value of type `float'.  */
-# define INFINITY	HUGE_VALF
-
-
 /* The values returned by `ilogb' for 0 and NaN respectively.  */
 # define FP_ILOGB0	(-2147483647)
 # define FP_ILOGBNAN	2147483647
diff --git a/libc/sysdeps/linux/common/bits/posix1_lim.h b/libc/sysdeps/linux/common/bits/posix1_lim.h
index 9379d46f4..3c86dcec1 100644
--- a/libc/sysdeps/linux/common/bits/posix1_lim.h
+++ b/libc/sysdeps/linux/common/bits/posix1_lim.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-1993,96,98,2000,01,02,2003 Free Software Foundation, Inc.
+/* Copyright (C) 1991-1993,96,98,2000-2003,2004 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
@@ -38,14 +38,25 @@
 #define	_POSIX_ARG_MAX		4096
 
 /* Maximum simultaneous processes per real user ID.  */
-#define	_POSIX_CHILD_MAX	6
+#ifdef __USE_XOPEN2K
+# define _POSIX_CHILD_MAX	25
+#else
+# define _POSIX_CHILD_MAX	6
+#endif
 
 /* Minimal number of timer expiration overruns.  */
 #define _POSIX_DELAYTIMER_MAX	32
 
+/* Maximum length of a host name (not including the terminating null)
+   as returned from the GETHOSTNAME function.  */
+#define _POSIX_HOST_NAME_MAX	255
+
 /* Maximum link count of a file.  */
 #define	_POSIX_LINK_MAX		8
 
+/* Maximum length of login name.  */
+#define	_POSIX_LOGIN_NAME_MAX	9
+
 /* Number of bytes in a terminal canonical input queue.  */
 #define	_POSIX_MAX_CANON	255
 
@@ -59,6 +70,9 @@
 /* Maximum number of supported message priorities.  */
 #define _POSIX_MQ_PRIO_MAX	32
 
+/* Number of bytes in a filename.  */
+#define	_POSIX_NAME_MAX		14
+
 /* Number of simultaneous supplementary group IDs per process.  */
 #ifdef __USE_XOPEN2K
 # define _POSIX_NGROUPS_MAX	8
@@ -67,21 +81,26 @@
 #endif
 
 /* Number of files one process can have open at once.  */
-#define	_POSIX_OPEN_MAX		16
+#ifdef __USE_XOPEN2K
+# define _POSIX_OPEN_MAX	20
+#else
+# define _POSIX_OPEN_MAX	16
+#endif
 
 /* Number of descriptors that a process may examine with `pselect' or
    `select'.  */
 #define	_POSIX_FD_SETSIZE	_POSIX_OPEN_MAX
 
-/* Number of bytes in a filename.  */
-#define	_POSIX_NAME_MAX		14
-
 /* Number of bytes in a pathname.  */
 #define	_POSIX_PATH_MAX		256
 
 /* Number of bytes than can be written atomically to a pipe.  */
 #define	_POSIX_PIPE_BUF		512
 
+/* The number of repeated occurrences of a BRE permitted by the
+   REGEXEC and REGCOMP functions when using the interval notation.  */
+#define _POSIX_RE_DUP_MAX	255
+
 /* Minimal number of realtime signals reserved for the application.  */
 #define _POSIX_RTSIG_MAX	8
 
@@ -100,6 +119,19 @@
 /* Number of streams a process can have open at once.  */
 #define	_POSIX_STREAM_MAX	8
 
+/* The number of bytes in a symbolic link.  */
+#define _POSIX_SYMLINK_MAX	255
+
+/* The number of symbolic links that can be traversed in the
+   resolution of a pathname in the absence of a loop.  */
+#define _POSIX_SYMLOOP_MAX	8
+
+/* Number of timer for a process.  */
+#define _POSIX_TIMER_MAX	32
+
+/* Maximum number of characters in a tty name.  */
+#define	_POSIX_TTY_NAME_MAX	9
+
 /* Maximum length of a timezone name (element of `tzname').  */
 #define	_POSIX_TZNAME_MAX	6
 
@@ -113,21 +145,13 @@
 /* Maximum number of elements in an `iovec' array.  */
 #define	_POSIX_UIO_MAXIOV	16
 
-/* Maximum number of characters in a tty name.  */
-#define	_POSIX_TTY_NAME_MAX	9
-
-/* Number of timer for a process.  */
-#define _POSIX_TIMER_MAX	32
-
-/* Maximum length of login name.  */
-#define	_POSIX_LOGIN_NAME_MAX	9
-
 /* Maximum clock resolution in nanoseconds.  */
 #define _POSIX_CLOCKRES_MIN	20000000
 
 
 /* Get the implementation-specific values for the above.  */
 #include <bits/local_lim.h>
+#include <bits/uClibc_local_lim.h>
 
 
 #ifndef	SSIZE_MAX
diff --git a/libc/sysdeps/linux/common/bits/posix_opt.h b/libc/sysdeps/linux/common/bits/posix_opt.h
index b2cae9d41..92c2d3282 100644
--- a/libc/sysdeps/linux/common/bits/posix_opt.h
+++ b/libc/sysdeps/linux/common/bits/posix_opt.h
@@ -1,11 +1,11 @@
 /* Define POSIX options for Linux.
-   Copyright (C) 1996,1997,1999,2000,2002,2003 Free Software Foundation, Inc.
+   Copyright (C) 1996-2001, 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
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
+   modify it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
 
    The GNU C Library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,16 +13,12 @@
    Lesser General Public License for more details.
 
    You should have receiv