Merge changes between r5854 and r5879 from /fsf/trunk.

git-svn-id: svn://svn.eglibc.org/trunk@5880 7b3dc134-2b1b-0410-93df-9e9f96275f8d

27 files changed, 1248 insertions, 306 deletions

diff --git a/libc/ChangeLog b/libc/ChangeLog
index 21312f6d1..49c916a83 100644
--- a/libc/ChangeLog
+++ b/libc/ChangeLog
@@ -1,3 +1,66 @@
+2008-04-11  Jakub Jelinek  <jakub@redhat.com>
+
+	[BZ #5443]
+	* time/era.c: Transform __libc_setlocale_lock into rwlock.
+	* time/alt_digit.c: Likewise.
+	* wcsmbs/wcsmbsload.c: Likewise.
+
+2008-04-10  Ulrich Drepper  <drepper@redhat.com>
+
+	* version.h (VERSION): Bump to 2.8.
+
+	* timzeone/asia: Update from tzdata2008b.
+	* timezone/backward: Likewise.
+	* timezone/europe: Likewise.
+	* timezone/northamerica: Likewise.
+	* timezone/southamerica: Likewise.
+	* timezone/iso3166.tab: Likewise.
+	* timezone/leapseconds: Likewise.
+	* timezone/zone.tab: Likewise.
+	* timezone/private.h: Update from tzcode2008a.
+	* timezone/zdump.c: Likewise.
+	* timezone/zic.c: Likewise.
+
+2008-01-24  Steven Munroe  <sjmunroe@us.ibm.com>
+
+	[BZ #5741]
+	* sysdeps/powerpc/powerpc64/dl-machine.h (PPC_DCBT, PPC_DCBF):
+	Define additonal Data Cache Block instruction macros.
+	(elf_machine_fixup_plt): Add dcbt for opd and plt entries.
+	Replace dcbst with dcbf and sync with sync/isync.
+
+2008-02-21  Alan Modra  <amodra@bigpond.net.au>
+
+	* sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_type_class):
+	Always set ELF_RTYPE_CLASS_PLT.
+	(elf_machine_lookup_noexec_p, elf_machine_lookup_noplt_p): Delete.
+
+2008-04-03  Steven Munroe  <sjmunroe@us.ibm.com>
+
+	* sysdeps/powerpc/powerpc32/power4/hp-timing.c: New file.
+	* sysdeps/powerpc/powerpc32/power4/hp-timing.h: New file.
+	* sysdeps/powerpc/powerpc64/hp-timing.h [_ARCH_PWR4] (HP_TIMING_NOW):
+	For ISA 2.01 and later replace mftb with mfspr 268.
+
+2008-02-19  Steven Munroe  <sjmunroe@us.ibm.com>
+
+	[BZ #5768]
+	* sysdeps/powerpc/fpu/Makefile (libm-tests): Add test-powerpc-snan.
+	* sysdeps/powerpc/fpu/test-powerpc-snan.c: New file.
+
+2008-02-18  Steven Munroe  <sjmunroe@us.ibm.com>
+
+	[BZ #5768]
+	* sysdeps/powerpc/powerpc32/fpu/s_isnan.S: New file.
+	* sysdeps/powerpc/powerpc32/fpu/s_isnan.c: Removed.
+	* sysdeps/powerpc/powerpc64/fpu/s_isnan.S: New file.
+	* sysdeps/powerpc/powerpc64/fpu/s_isnan.c: Removed.
+
+2008-04-10  Jakub Jelinek  <jakub@redhat.com>
+
+	* stdlib/tst-makecontext.c (othervar): New variable.
+	(cf): Test sign extending the argument to long.
+
 2008-03-03  Steven Munroe  <sjmunroe@us.ibm.com>
 
 	* sysdeps/powerpc/powerpc32/power5/fpu/s_isnan.S: New file.
@@ -32,11 +95,12 @@
 2008-04-09  Ulrich Drepper  <drepper@redhat.com>
 
 	[BZ #4314]
-	* sysdeps/i386/i686/memcpy.S: Optimize copying of aligned buffers.
+	* sysdeps/i386/i686/memcpy.S: Optimize copying of equally aligned
+	buffers.
 
 	[BZ #5209]
-	* sysdeps/unix/sysv/syscalls.list: The times syscall doesn't return
-	an error value.
+	* sysdeps/unix/sysv/syscalls.list: The times syscall doesn't have
+	a reserved error value.
 
 	* stdlib/tst-makecontext.c: Change parameter to cf to negative
 	value to check for correct sign extension.
diff --git a/libc/stdlib/tst-makecontext.c b/libc/stdlib/tst-makecontext.c
index 5fe66f6fc..00f8f1990 100644
--- a/libc/stdlib/tst-makecontext.c
+++ b/libc/stdlib/tst-makecontext.c
@@ -26,11 +26,12 @@ char st1[8192];
 __thread int thr;
 
 int somevar = -76;
+long othervar = -78L;
 
 void
 cf (int i)
 {
-  if (i != -78 || thr != 94)
+  if (i != othervar || thr != 94)
     {
       printf ("i %d thr %d\n", i, thr);
       exit (1);
diff --git a/libc/sysdeps/powerpc/fpu/Makefile b/libc/sysdeps/powerpc/fpu/Makefile
index 060c952d1..ce67ff87d 100644
--- a/libc/sysdeps/powerpc/fpu/Makefile
+++ b/libc/sysdeps/powerpc/fpu/Makefile
@@ -1,5 +1,6 @@
 ifeq ($(subdir),math)
 libm-support += fenv_const fe_nomask fe_mask t_sqrt
+libm-tests += test-powerpc-snan
 
 # libm needs ld.so to access dl_hwcap
 $(objpfx)libm.so: $(elfobjdir)/ld.so
diff --git a/libc/sysdeps/powerpc/fpu/test-powerpc-snan.c b/libc/sysdeps/powerpc/fpu/test-powerpc-snan.c
new file mode 100644
index 000000000..93b212abc
--- /dev/null
+++ b/libc/sysdeps/powerpc/fpu/test-powerpc-snan.c
@@ -0,0 +1,385 @@
+/* Test Signalling NaN in isnan, isinf etc functions.
+   Copyright (C) 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Jaeger <aj@suse.de>, 2005.
+
+   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.  */
+
+#define _GNU_SOURCE
+#define __USE_GNU
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <string.h>
+#include <math.h>
+#include <float.h>
+#include <fenv.h>
+#include <signal.h>
+#include <setjmp.h>
+#include <errno.h>
+
+int dest_offset;
+char *dest_address;
+double	value = 123.456;
+double	zero = 0.0;
+
+float SNANf;
+double SNAN;
+long double SNANl;
+
+static sigjmp_buf sigfpe_buf;
+
+void
+init_signaling_nan()
+{
+    union {
+	double _ld16;
+	double _d8;
+	unsigned int _ui4[4];
+	float _f4;
+    } nan_temp;
+    
+    nan_temp._ui4[0] = 0x7fa00000;
+    SNANf = nan_temp._f4;
+
+    nan_temp._ui4[0] = 0x7ff40000;
+    nan_temp._ui4[1] = 0x00000000;
+    SNAN = nan_temp._d8;
+
+    nan_temp._ui4[0] = 0x7ff40000;
+    nan_temp._ui4[1] = 0x00000000;
+    nan_temp._ui4[2] = 0x00000000;
+    nan_temp._ui4[3] = 0x00000000;
+    SNANl = nan_temp._ld16;
+}
+
+static float
+snan_float (void)
+{
+  return SNANf;
+}
+
+static double
+snan_double (void)
+{
+  return SNAN;
+}
+
+typedef long double ldouble;
+
+static ldouble
+snan_ldouble (void)
+{
+  return SNANl;
+}
+
+
+void
+myFPsighandler(int signal,
+             siginfo_t *info,
+             void *context)
+{
+  siglongjmp(sigfpe_buf, 0);
+}
+
+int
+set_sigaction_FP(void)
+{
+    struct sigaction sa;
+    /* register RT signal handler via sigaction */
+    sa.sa_flags = SA_SIGINFO;
+    sa.sa_sigaction = &myFPsighandler;
+    sigemptyset(&sa.sa_mask);
+    sigaction(SIGFPE, &sa, NULL);
+
+    return 0;
+}
+
+int
+remove_sigaction_FP(void)
+{
+    struct sigaction sa;
+    /* restore default RT signal handler via sigaction */
+    sa.sa_flags = SA_SIGINFO;
+    sa.sa_handler = SIG_DFL;
+    sigemptyset(&sa.sa_mask);
+    sigaction(SIGFPE, &sa, NULL);
+
+    return 0;
+}
+
+static int errors = 0;
+
+static void
+check (const char *testname, int result)
+{
+  if (!result) {
+    printf ("Failure: %s\n", testname);
+    errors++;
+  }
+}
+
+#define TEST_FUNC(NAME, FLOAT) \
+static void								      \
+NAME (void)								      \
+{									      \
+  /* Variables are declared volatile to forbid some compiler		      \
+     optimizations.  */							      \
+  volatile FLOAT Inf_var, NaN_var, zero_var, one_var, SNaN_var;		      \
+  fenv_t saved_fenv;							      \
+									      \
+  zero_var = 0.0;							      \
+  one_var = 1.0;							      \
+  NaN_var = zero_var / zero_var;					      \
+  SNaN_var = snan_##FLOAT ();						      \
+  Inf_var = one_var / zero_var;						      \
+									      \
+  (void) &zero_var;							      \
+  (void) &one_var;							      \
+  (void) &NaN_var;							      \
+  (void) &SNaN_var;							      \
+  (void) &Inf_var;							      \
+									      \
+  set_sigaction_FP ();							      \
+  fegetenv(&saved_fenv);						      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isnan(NaN) raised SIGFPE\n");			      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isnan (NaN)", isnan (NaN_var));			      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isnan(-NaN) raised SIGFPE\n");			      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isnan (-NaN)", isnan (-NaN_var));			      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isnan(SNaN) raised SIGFPE\n");			      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isnan (SNaN)", isnan (SNaN_var));			      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isnan(-SNaN) raised SIGFPE\n");			      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isnan (-SNaN)", isnan (-SNaN_var));		      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isinf(NaN) raised SIGFPE\n");			      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isinf (NaN)", !isinf (NaN_var));			      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isinf(-NaN) raised SIGFPE\n");			      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isinf (-NaN)", !isinf (-NaN_var));		      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isinf(SNaN) raised SIGFPE\n");			      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isinf (SNaN)", !isinf (SNaN_var));		      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isinf(-SNaN) raised SIGFPE\n");			      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isinf (-SNaN)", !isinf (-SNaN_var));		      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isfinite(NaN) raised SIGFPE\n");			      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isfinite (NaN)", !isfinite (NaN_var));		      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isfinite(-NaN) raised SIGFPE\n");		      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isfinite (-NaN)", !isfinite (-NaN_var));		      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isfinite(SNaN) raised SIGFPE\n");		      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isfinite (SNaN)", !isfinite (SNaN_var));		      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isfinite(-SNaN) raised SIGFPE\n");		      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isfinite (-SNaN)", !isfinite (-SNaN_var));	      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isnormal(NaN) raised SIGFPE\n");			      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isnormal (NaN)", !isnormal (NaN_var));		      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isnormal(-NaN) raised SIGFPE\n");		      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isnormal (-NaN)", !isnormal (-NaN_var));		      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isnormal(SNaN) isnormal SIGFPE\n");		      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isnormal (SNaN)", !isnormal (SNaN_var));		      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " isnormal(-SNaN) raised SIGFPE\n");		      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " isnormal (-SNaN)", !isnormal (-SNaN_var));	      \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " fpclassify(NaN) raised SIGFPE\n");		      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " fpclassify (NaN)", (fpclassify (NaN_var)==FP_NAN));     \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " fpclassify(-NaN) raised SIGFPE\n");		      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " fpclassify (-NaN)", (fpclassify (-NaN_var)==FP_NAN));   \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " fpclassify(SNaN) isnormal SIGFPE\n");		      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " fpclassify (SNaN)", (fpclassify (SNaN_var)==FP_NAN));   \
+    }									      \
+									      \
+  feclearexcept(FE_ALL_EXCEPT);						      \
+  feenableexcept (FE_ALL_EXCEPT);					      \
+  if (sigsetjmp(sigfpe_buf, 0))						      \
+    {									      \
+      printf (#FLOAT " fpclassify(-SNaN) raised SIGFPE\n");		      \
+      errors++;								      \
+    } else {								      \
+      check (#FLOAT " fpclassify (-SNaN)", (fpclassify (-SNaN_var)==FP_NAN)); \
+    }									      \
+									      \
+  fesetenv(&saved_fenv); /* restore saved fenv */			      \
+  remove_sigaction_FP();						      \
+}
+
+TEST_FUNC (float_test, float)
+TEST_FUNC (double_test, double)
+#ifndef NO_LONG_DOUBLE
+TEST_FUNC (ldouble_test, ldouble)
+#endif
+
+static int
+do_test (void)
+{
+  init_signaling_nan();
+
+  float_test();
+  double_test();
+#ifndef NO_LONG_DOUBLE
+  ldouble_test();
+#endif
+
+  return errors != 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
+
diff --git a/libc/sysdeps/powerpc/powerpc32/fpu/s_isnan.S b/libc/sysdeps/powerpc/powerpc32/fpu/s_isnan.S
new file mode 100644
index 000000000..6e3f396de
--- /dev/null
+++ b/libc/sysdeps/powerpc/powerpc32/fpu/s_isnan.S
@@ -0,0 +1,56 @@
+/* isnan().  PowerPC32 version.
+   Copyright (C) 2008 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.  */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+/* int __isnan(x)  */
+	.machine power4
+EALIGN (__isnan, 4, 0)	
+	mffs	fp0
+	mtfsb0	4*cr6+lt /* reset_fpscr_bit (FPSCR_VE) */
+	fcmpu	cr7,fp1,fp1
+	mtfsf	255,fp0
+	li	r3,0
+	beqlr+	cr7	/* (x == x) then not a NAN */
+	li	r3,1	/* else must be a NAN */
+	blr
+	END (__isnan)
+
+hidden_def (__isnan)
+weak_alias (__isnan, isnan)
+
+/* It turns out that the 'double' version will also always work for
+   single-precision.  */
+strong_alias (__isnan, __isnanf)
+hidden_def (__isnanf)
+weak_alias (__isnanf, isnanf)
+
+#ifdef NO_LONG_DOUBLE
+strong_alias (__isnan, __isnanl)
+weak_alias (__isnan, isnanl)
+#endif
+
+#ifndef IS_IN_libm
+# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
+compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
+compat_symbol (libc, isnan, isnanl, GLIBC_2_0);
+# endif
+#endif
+
diff --git a/libc/sysdeps/powerpc/powerpc32/fpu/s_isnan.c b/libc/sysdeps/powerpc/powerpc32/fpu/s_isnan.c
deleted file mode 100644
index 397717ba9..000000000
--- a/libc/sysdeps/powerpc/powerpc32/fpu/s_isnan.c
+++ /dev/null
@@ -1,7 +0,0 @@
-#include <sysdeps/powerpc/fpu/s_isnan.c>
-#ifndef IS_IN_libm
-# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
-compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
-compat_symbol (libc, isnan, isnanl, GLIBC_2_0);
-# endif
-#endif
diff --git a/libc/sysdeps/powerpc/powerpc32/power4/hp-timing.c b/libc/sysdeps/powerpc/powerpc32/power4/hp-timing.c
new file mode 100644
index 000000000..332fe8af9
--- /dev/null
+++ b/libc/sysdeps/powerpc/powerpc32/power4/hp-timing.c
@@ -0,0 +1,25 @@
+/* Support for high precision, low overhead timing functions. 
+   powerpc64 version.
+   Copyright (C) 2005, 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+   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.  */
+
+#include <hp-timing.h>
+
+/* We have to define the variable for the overhead.  */
+hp_timing_t _dl_hp_timing_overhead;
diff --git a/libc/sysdeps/powerpc/powerpc32/power4/hp-timing.h b/libc/sysdeps/powerpc/powerpc32/power4/hp-timing.h
new file mode 100644
index 000000000..5f719dd5a
--- /dev/null
+++ b/libc/sysdeps/powerpc/powerpc32/power4/hp-timing.h
@@ -0,0 +1,152 @@
+/* High precision, low overhead timing functions.  powerpc64 version.
+   Copyright (C) 2005, 2008 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+   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 _HP_TIMING_H
+#define _HP_TIMING_H	1
+
+#include <string.h>
+#include <sys/param.h>
+#include <stdio-common/_itoa.h>
+#include <atomic.h>
+
+/* The macros defined here use the powerpc 64-bit time base register.
+   The time base is nominally clocked at 1/8th the CPU clock, but this
+   can vary.
+
+   The list of macros we need includes the following:
+
+   - HP_TIMING_AVAIL: test for availability.
+
+   - HP_TIMING_INLINE: this macro is non-zero if the functionality is not
+     implemented using function calls but instead uses some inlined code
+     which might simply consist of a few assembler instructions.  We have to
+     know this since we might want to use the macros here in places where we
+     cannot make function calls.
+
+   - hp_timing_t: This is the type for variables used to store the time
+     values.
+
+   - HP_TIMING_ZERO: clear `hp_timing_t' object.
+
+   - HP_TIMING_NOW: place timestamp for current time in variable given as
+     parameter.
+
+   - HP_TIMING_DIFF_INIT: do whatever is necessary to be able to use the
+     HP_TIMING_DIFF macro.
+
+   - HP_TIMING_DIFF: compute difference between two times and store it
+     in a third.  Source and destination might overlap.
+
+   - HP_TIMING_ACCUM: add time difference to another variable.  This might
+     be a bit more complicated to implement for some platforms as the
+     operation should be thread-safe and 64bit arithmetic on 32bit platforms
+     is not.
+
+   - HP_TIMING_ACCUM_NT: this is the variant for situations where we know
+     there are no threads involved.
+
+   - HP_TIMING_PRINT: write decimal representation of the timing value into
+     the given string.  This operation need not be inline even though
+     HP_TIMING_INLINE is specified.
+
+*/
+
+/* We always assume having the timestamp register.  */
+#define HP_TIMING_AVAIL		(1)
+
+/* We indeed have inlined functions.  */
+#define HP_TIMING_INLINE	(1)
+
+/* We use 64bit values for the times.  */
+typedef unsigned long long int hp_timing_t;
+
+/* Set timestamp value to zero.  */
+#define HP_TIMING_ZERO(Var)	(Var) = (0)
+
+/* That's quite simple.  Use the `mftb' instruction.  Note that the value
+   might not be 100% accurate since there might be some more instructions
+   running in this moment.  This could be changed by using a barrier like
+   'lwsync' right before the `mftb' instruciton.  But we are not interested
+   in accurate clock cycles here so we don't do this.  */
+
+#define HP_TIMING_NOW(Var)						\
+  do {									\
+        union { long long ll; long ii[2]; } _var;			\
+	long tmp;							\
+        __asm__ __volatile__ (						\
+		"1:	mfspr	%0,269;"				\
+		"	mfspr	%1,268;"				\
+		"	mfspr	%2,269;"				\
+		"	cmpw	%0,%2;"					\
+		"	bne	1b;"					\
+		: "=r" (_var.ii[0]), "=r" (_var.ii[1]) , "=r" (tmp)	\
+		: : "cr0"						\
+		);							\
+	Var = _var.ll;							\
+  } while (0)
+
+
+/* Use two 'mftb' instructions in a row to find out how long it takes.
+   On current POWER4, POWER5, and 970 processors mftb take ~10 cycles.  */
+#define HP_TIMING_DIFF_INIT() \
+  do {									      \
+    if (GLRO(dl_hp_timing_overhead) == 0)				      \
+      {									      \
+	int __cnt = 5;							      \
+	GLRO(dl_hp_timing_overhead) = ~0ull;				      \
+	do								      \
+	  {								      \
+	    hp_timing_t __t1, __t2;					      \
+	    HP_TIMING_NOW (__t1);					      \
+	    HP_TIMING_NOW (__t2);					      \
+	    if (__t2 - __t1 < GLRO(dl_hp_timing_overhead))		      \
+	      GLRO(dl_hp_timing_overhead) = __t2 - __t1;		      \
+	  }								      \
+	while (--__cnt > 0);						      \
+      }									      \
+  } while (0)
+
+/* It's simple arithmetic in 64-bit.  */
+#define HP_TIMING_DIFF(Diff, Start, End)	(Diff) = ((End) - (Start))
+
+/* We need to insure that this add is atomic in threaded environments.  We use
+   __arch_atomic_exchange_and_add_64 from atomic.h to get thread safety.  */
+#define HP_TIMING_ACCUM(Sum, Diff) \
+  do {									      \
+    hp_timing_t __diff = (Diff) - GLRO(dl_hp_timing_overhead);		      \
+    __arch_atomic_exchange_and_add_64 (&(Sum), __diff);	                      \
+  } while (0)
+
+/* No threads, no extra work.  */
+#define HP_TIMING_ACCUM_NT(Sum, Diff)	(Sum) += (Diff)
+
+/* Print the time value.  */
+#define HP_TIMING_PRINT(Buf, Len, Val) \
+  do {									      \
+    char __buf[20];							      \
+    char *__cp = _itoa (Val, __buf + sizeof (__buf), 10, 0);		      \
+    size_t __len = (Len);						      \
+    char *__dest = (Buf);						      \
+    while (__len-- > 0 && __cp < __buf + sizeof (__buf))		      \
+      *__dest++ = *__cp++;						      \
+    memcpy (__dest, " ticks", MIN (__len, sizeof (" ticks")));  \
+  } while (0)
+
+#endif	/* hp-timing.h */
diff --git a/libc/sysdeps/powerpc/powerpc64/dl-machine.h b/libc/sysdeps/powerpc/powerpc64/dl-machine.h
index 89a69e1a2..b674dbef4 100644
--- a/libc/sysdeps/powerpc/powerpc64/dl-machine.h
+++ b/libc/sysdeps/powerpc/powerpc64/dl-machine.h
@@ -1,6 +1,6 @@
 /* Machine-dependent ELF dynamic relocation inline functions.
    PowerPC64 version.
-   Copyright 1995-2005, 2006 Free Software Foundation, Inc.
+   Copyright 1995-2005, 2006, 2008 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
@@ -246,30 +246,35 @@ BODY_PREFIX "_dl_start_user:\n"						\
 "	" END_2(_dl_start_user) "\n"					\
 "	.popsection");
 
-/* Nonzero iff TYPE should not be allowed to resolve to one of
-   the main executable's symbols, as for a COPY reloc.  */
-#define elf_machine_lookup_noexec_p(type) ((type) == R_PPC64_COPY)
+/* ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to
+   one of the main executable's symbols, as for a COPY reloc.
+
+   To make function pointer comparisons work on most targets, the
+   relevant ABI states that the address of a non-local function in a
+   dynamically linked executable is the address of the PLT entry for
+   that function.  This is quite reasonable since using the real
+   function address in a non-PIC executable would typically require
+   dynamic relocations in .text, something to be avoided.  For such
+   functions, the linker emits a SHN_UNDEF symbol in the executable
+   with value equal to the PLT entry address.  Normally, SHN_UNDEF
+   symbols have a value of zero, so this is a clue to ld.so that it
+   should treat these symbols specially.  For relocations not in
+   ELF_RTYPE_CLASS_PLT (eg. those on function pointers), ld.so should
+   use the value of the executable SHN_UNDEF symbol, ie. the PLT entry
+   address.  For relocations in ELF_RTYPE_CLASS_PLT (eg. the relocs in
+   the PLT itself), ld.so should use the value of the corresponding
+   defined symbol in the object that defines the function, ie. the
+   real function address.  This complicates ld.so in that there are
+   now two possible values for a given symbol, and it gets even worse
+   because protected symbols need yet another set of rules.
+
+   On PowerPC64 we don't need any of this.  The linker won't emit
+   SHN_UNDEF symbols with non-zero values.  ld.so can make all
+   relocations behave "normally", ie. always use the real address
+   like PLT relocations.  So always set ELF_RTYPE_CLASS_PLT.  */
 
-/* Nonzero iff TYPE describes relocation of a PLT entry, so
-   PLT entries should not be allowed to define the value.  */
-#define elf_machine_lookup_noplt_p(type) ((type) == R_PPC64_JMP_SLOT)
-
-/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
-   PLT entries should not be allowed to define the value.
-   ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
-   of the main executable's symbols, as for a COPY reloc.  */
-
-#if !defined RTLD_BOOTSTRAP || USE___THREAD
-#define elf_machine_type_class(type)					      \
-  /* This covers all the TLS relocs, though most won't appear.  */	      \
-  (((((type) >= R_PPC64_DTPMOD64 && (type) <= R_PPC64_TPREL16_HIGHESTA)	      \
-    || (type) == R_PPC64_ADDR24) * ELF_RTYPE_CLASS_PLT)			      \
-   | (((type) == R_PPC64_COPY) * ELF_RTYPE_CLASS_COPY))
-#else
 #define elf_machine_type_class(type) \
-  ((((type) == R_PPC64_ADDR24) * ELF_RTYPE_CLASS_PLT)	\
-   | (((type) == R_PPC64_COPY) * ELF_RTYPE_CLASS_COPY))
-#endif
+  (ELF_RTYPE_CLASS_PLT | (((type) == R_PPC64_COPY) * ELF_RTYPE_CLASS_COPY))
 
 /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries.  */
 #define ELF_MACHINE_JMP_SLOT	R_PPC64_JMP_SLOT
@@ -282,6 +287,8 @@ BODY_PREFIX "_dl_start_user:\n"						\
 #define GLINK_INITIAL_ENTRY_WORDS 8
 
 #define PPC_DCBST(where) asm volatile ("dcbst 0,%0" : : "r"(where) : "memory")
+#define PPC_DCBT(where) asm volatile ("dcbt 0,%0" : : "r"(where) : "memory")
+#define PPC_DCBF(where) asm volatile ("dcbf 0,%0" : : "r"(where) : "memory")
 #define PPC_SYNC asm volatile ("sync" : : : "memory")
 #define PPC_ISYNC asm volatile ("sync; isync" : : : "memory")
 #define PPC_ICBI(where) asm volatile ("icbi 0,%0" : : "r"(where) : "memory")
@@ -403,6 +410,11 @@ elf_machine_fixup_plt (struct link_map *map, lookup_t sym_map,
   Elf64_FuncDesc *rel = (Elf64_FuncDesc *) finaladdr;
   Elf64_Addr offset = 0;
 
+  PPC_DCBT (&plt->fd_aux);
+  PPC_DCBT (&plt->fd_func);
+  PPC_DCBT (&rel->fd_aux);
+  PPC_DCBT (&rel->fd_func);
+
   /* If sym_map is NULL, it's a weak undefined sym;  Leave the plt zero.  */
   if (sym_map == NULL)
     return 0;
@@ -425,13 +437,12 @@ elf_machine_fixup_plt (struct link_map *map, lookup_t sym_map,
 
   plt->fd_aux = rel->fd_aux + offset;
   plt->fd_toc = rel->fd_toc + offset;
-  PPC_DCBST (&plt->fd_aux);
-  PPC_DCBST (&plt->fd_toc);
-  PPC_SYNC;
+  PPC_DCBF (&plt->fd_toc);
+  PPC_ISYNC;
 
   plt->fd_func = rel->fd_func + offset;
   PPC_DCBST (&plt->fd_func);
-  PPC_SYNC;
+  PPC_ISYNC;
 
   return finaladdr;
 }
diff --git a/libc/sysdeps/powerpc/powerpc64/fpu/s_isnan.S b/libc/sysdeps/powerpc/powerpc64/fpu/s_isnan.S
new file mode 100644
index 000000000..9963896f2
--- /dev/null
+++ b/libc/sysdeps/powerpc/powerpc64/fpu/s_isnan.S
@@ -0,0 +1,57 @@
+/* isnan().  PowerPC64 version.
+   Copyright (C) 2008 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.  */
+
+#include <sysdep.h>
+#include <math_ldbl_opt.h>
+
+/* int __isnan(x)  */
+	.machine power4
+EALIGN (__isnan, 4, 0)	
+	CALL_MCOUNT 0
+	mffs	fp0
+	mtfsb0	4*cr6+lt /* reset_fpscr_bit (FPSCR_VE) */
+	fcmpu	cr7,fp1,fp1
+	mtfsf	255,fp0
+	li	r3,0
+	beqlr+	cr7	/* (x == x) then not a NAN */
+	li	r3,1	/* else must be a NAN */
+	blr
+	END (__isnan)
+
+hidden_def (__isnan)
+weak_alias (__isnan, isnan)
+
+/* It turns out that the 'double' version will also always work for
+   single-precision.  */
+strong_alias (__isnan, __isnanf)
+hidden_def (__isnanf)
+weak_alias (__isnanf, isnanf)
+
+#ifdef NO_LONG_DOUBLE
+strong_alias (__isnan, __isnanl)
+weak_alias (__isnan, isnanl)
+#endif
+
+#ifndef IS_IN_libm
+# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
+compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
+compat_symbol (libc, isnan, isnanl, GLIBC_2_0);
+# endif
+#endif
+
diff --git a/libc/sysdeps/powerpc/powerpc64/fpu/s_isnan.c b/libc/sysdeps/powerpc/powerpc64/fpu/s_isnan.c
deleted file mode 100644
index 397717ba9..000000000
--- a/libc/sysdeps/powerpc/powerpc64/fpu/s_isnan.c
+++ /dev/null
@@ -1,7 +0,0 @@
-#include <sysdeps/powerpc/fpu/s_isnan.c>
-#ifndef IS_IN_libm
-# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
-compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
-compat_symbol (libc, isnan, isnanl, GLIBC_2_0);
-# endif
-#endif
diff --git a/libc/sysdeps/powerpc/powerpc64/hp-timing.h b/libc/sysdeps/powerpc/powerpc64/hp-timing.h
index b58cca900..e107a2dd4 100644
--- a/libc/sysdeps/powerpc/powerpc64/hp-timing.h
+++ b/libc/sysdeps/powerpc/powerpc64/hp-timing.h
@@ -1,5 +1,5 @@
 /* High precision, low overhead timing functions.  powerpc64 version.
-   Copyright (C) 2005 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2008 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
@@ -85,7 +85,11 @@ typedef unsigned long long int hp_timing_t;
    running in this moment.  This could be changed by using a barrier like
    'lwsync' right before the `mftb' instruciton.  But we are not interested
    in accurate clock cycles here so we don't do this.  */
+#ifdef _ARCH_PWR4
+#define HP_TIMING_NOW(Var)	__asm__ __volatile__ ("mfspr %0,268" : "=r" (Var))
+#else
 #define HP_TIMING_NOW(Var)	__asm__ __volatile__ ("mftb %0" : "=r" (Var))
+#endif
 
 /* Use two 'mftb' instructions in a row to find out how long it takes.
    On current POWER4, POWER5, and 970 processors mftb take ~10 cycles.  */
diff --git a/libc/time/alt_digit.c b/libc/time/alt_digit.c
index 1a81ba125..95e4f07c7 100644
--- a/libc/time/alt_digit.c
+++ b/libc/time/alt_digit.c
@@ -1,5 +1,5 @@
 /* Helper functions used by strftime/strptime to handle alternate digits.
-   Copyright (C) 1995-2001,02 Free Software Foundation, Inc.
+   Copyright (C) 1995-2002, 2008 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
@@ -24,7 +24,7 @@
 #include <string.h>
 
 /* Some of the functions here must not be used while setlocale is called.  */
-__libc_lock_define (extern, __libc_setlocale_lock attribute_hidden)
+__libc_rwlock_define (extern, __libc_setlocale_lock attribute_hidden)
 
 #define CURRENT(item) (current->values[_NL_ITEM_INDEX (item)].string)
 #define CURRENT_WSTR(item) \
@@ -77,7 +77,7 @@ _nl_get_alt_digit (unsigned int number, struct locale_data *current)
   if (number >= 100 || CURRENT (ALT_DIGITS)[0] == '\0')
     return NULL;
 
-  __libc_lock_lock (__libc_setlocale_lock);
+  __libc_rwlock_wrlock (__libc_setlocale_lock);
 
   if (current->private.time == NULL
       || ! current->private.time->alt_digits_initialized)
@@ -88,7 +88,7 @@ _nl_get_alt_digit (unsigned int number, struct locale_data *current)
 	    ? current->private.time->alt_digits[number]
 	    : NULL);
 
-  __libc_lock_unlock (__libc_setlocale_lock);
+  __libc_rwlock_unlock (__libc_setlocale_lock);
 
   return result;
 }
@@ -104,7 +104,7 @@ _nl_get_walt_digit (unsigned int number, struct locale_data *current)
   if (number >= 100 || CURRENT_WSTR (_NL_WALT_DIGITS)[0] == L'\0')
     return NULL;
 
-  __libc_lock_lock (__libc_setlocale_lock);
+  __libc_rwlock_wrlock (__libc_setlocale_lock);
 
   if (current->private.time == NULL)
     {
@@ -141,7 +141,7 @@ _nl_get_walt_digit (unsigned int number, struct locale_data *current)
     result = data->walt_digits[number];
 
  out:
-  __libc_lock_unlock (__libc_setlocale_lock);
+  __libc_rwlock_unlock (__libc_setlocale_lock);
 
   return (wchar_t *) result;
 }
@@ -159,7 +159,7 @@ _nl_parse_alt_digit (const char **strp, struct locale_data *current)
   if (CURRENT_WSTR (_NL_WALT_DIGITS)[0] == L'\0')
     return result;
 
-  __libc_lock_lock (__libc_setlocale_lock);
+  __libc_rwlock_wrlock (__libc_setlocale_lock);
 
   if (current->private.time == NULL
       || ! current->private.time->alt_digits_initialized)
@@ -184,7 +184,7 @@ _nl_parse_alt_digit (const char **strp, struct locale_data *current)
 	  }
       }
 
-  __libc_lock_unlock (__libc_setlocale_lock);
+  __libc_rwlock_unlock (__libc_setlocale_lock);
 
   if (result != -1)
     *strp += maxlen;
diff --git a/libc/time/era.c b/libc/time/era.c
index a8d223733..a6f4a4cb0 100644
--- a/libc/time/era.c
+++ b/libc/time/era.c
@@ -1,5 +1,5 @@
 /* Helper functions used by strftime/strptime to handle locale-specific "eras".
-   Copyright (C) 1995-2001,02 Free Software Foundation, Inc.
+   Copyright (C) 1995-2002, 2008 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
@@ -24,7 +24,7 @@
 #include <string.h>
 
 /* Some of the functions here must not be used while setlocale is called.  */
-__libc_lock_define (extern, __libc_setlocale_lock attribute_hidden)
+__libc_rwlock_define (extern, __libc_setlocale_lock attribute_hidden)
 
 #define CURRENT(item)		(current->values[_NL_ITEM_INDEX (item)].string)
 #define CURRENT_WORD(item)	(current->values[_NL_ITEM_INDEX (item)].word)
@@ -45,7 +45,7 @@ _nl_init_era_entries (struct locale_data *current)
   if (CURRENT_WORD (_NL_TIME_ERA_NUM_ENTRIES) == 0)
     return;
 
-  __libc_lock_lock (__libc_setlocale_lock);
+  __libc_rwlock_wrlock (__libc_setlocale_lock);
 
   if (current->private.time == NULL)
     {
@@ -135,7 +135,7 @@ _nl_init_era_entries (struct locale_data *current)
     }
 
  out:
-  __libc_lock_unlock (__libc_setlocale_lock);
+  __libc_rwlock_unlock (__libc_setlocale_lock);
 }
 
 struct era_entry *
diff --git a/libc/timezone/asia b/libc/timezone/asia
index 3007414a7..70f151532 100644
--- a/libc/timezone/asia
+++ b/libc/timezone/asia
@@ -1,4 +1,4 @@
-# @(#)asia	8.12
+# @(#)asia	8.18
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
@@ -446,13 +446,13 @@ Zone	Asia/Dili	8:22:20 -	LMT	1912
 
 # India
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Calcutta	5:53:28 -	LMT	1880	# Kolkata
+Zone	Asia/Kolkata	5:53:28 -	LMT	1880	# Kolkata
 			5:53:20	-	HMT	1941 Oct    # Howrah Mean Time?
 			6:30	-	BURT	1942 May 15 # Burma Time
 			5:30	-	IST	1942 Sep
 			5:30	1:00	IST	1945 Oct 15
 			5:30	-	IST
-# The following are like Asia/Calcutta:
+# The following are like Asia/Kolkata:
 #	Andaman Is
 #	Lakshadweep (Laccadive, Minicoy and Amindivi Is)
 #	Nicobar Is
@@ -577,6 +577,15 @@ Zone Asia/Jayapura	9:22:48 -	LMT	1932 Nov
 # daylight saving time ...
 # http://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
 #
+# From Roozbeh Pournader (2007-11-05):
+# This is quoted from Official Gazette of the Islamic Republic of
+# Iran, Volume 63, Number 18242, dated Tuesday 1386/6/24
+# [2007-10-16]. I am doing the best translation I can:...
+# The official time of the country will be moved forward for one hour
+# on the 24 hours of the first day of the month of Farvardin and will
+# be changed back to its previous state on the 24 hours of the
+# thirtieth day of Shahrivar.
+#
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Iran	1978	1980	-	Mar	21	0:00	1:00	D
 Rule	Iran	1978	only	-	Oct	21	0:00	0	S
@@ -651,6 +660,21 @@ Zone	Asia/Tehran	3:25:44	-	LMT	1916
 #
 # So we'll ignore the Economist's claim.
 
+# From Steffen Thorsen (2008-03-10):
+# The cabinet in Iraq abolished DST last week, according to the following
+# news sources (in Arabic):
+# <a href="http://www.aljeeran.net/wesima_articles/news-20080305-98602.html">
+# http://www.aljeeran.net/wesima_articles/news-20080305-98602.html
+# </a>
+# <a href="http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10">
+# http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10
+# </a>
+#
+# We have published a short article in English about the change:
+# <a href="http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html">
+# http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
+# </a>
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Iraq	1982	only	-	May	1	0:00	1:00	D
 Rule	Iraq	1982	1984	-	Oct	1	0:00	0	S
@@ -661,8 +685,8 @@ Rule	Iraq	1986	1990	-	Mar	lastSun	1:00s	1:00	D
 # IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the `:01' is a typo.
 # Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this.
 #
-Rule	Iraq	1991	max	-	Apr	 1	3:00s	1:00	D
-Rule	Iraq	1991	max	-	Oct	 1	3:00s	0	S
+Rule	Iraq	1991	2007	-	Apr	 1	3:00s	1:00	D
+Rule	Iraq	1991	2007	-	Oct	 1	3:00s	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Baghdad	2:57:40	-	LMT	1890
 			2:57:36	-	BMT	1918	    # Baghdad Mean Time?
@@ -1678,7 +1702,7 @@ Zone	Asia/Singapore	6:55:25 -	LMT	1901 Jan  1
 # kept their clocks set five and a half hours ahead of Greenwich Mean
 # Time (GMT), in line with neighbor India.
 # From Paul Eggert (2006-04-18):
-# People who live in regions under Tamil control can use TZ='Asia/Calcutta',
+# People who live in regions under Tamil control can use [TZ='Asia/Kolkata'],
 # as that zone has agreed with the Tamil areas since our cutoff date of 1970.
 
 # From K Sethu (2006-04-25):
@@ -1768,10 +1792,62 @@ Rule	Syria	2006	only	-	Sep	22	0:00	0	-
 # From Paul Eggert (2007-03-29):
 # Today the AP reported "Syria will switch to summertime at midnight Thursday."
 # http://www.iht.com/articles/ap/2007/03/29/africa/ME-GEN-Syria-Time-Change.php
-# For lack of better info, assume the rule changed to "last Friday in March"
-# this year.
-Rule	Syria	2007	max	-	Mar	lastFri	0:00	1:00	S
-Rule	Syria	2007	max	-	Oct	 1	0:00	0	-
+Rule	Syria	2007	only	-	Mar	lastFri	0:00	1:00	S
+# From Jesper Norgard (2007-10-27):
+# The sister center ICARDA of my work CIMMYT is confirming that Syria DST will
+# not take place 1.st November at 0:00 o'clock but 1.st November at 24:00 or
+# rather Midnight between Thursday and Friday. This does make more sence than
+# having it between Wednesday and Thursday (two workdays in Syria) since the
+# weekend in Syria is not Saturday and Sunday, but Friday and Saturday. So now
+# it is implemented at midnight of the last workday before weekend...
+# 
+# From Steffen Thorsen (2007-10-27):
+# Jesper Norgaard Welen wrote:
+# 
+# > "Winter local time in Syria will be observed at midnight of Thursday 1
+# > November 2007, and the clock will be put back 1 hour."
+# 
+# I found confirmation on this in this gov.sy-article (Arabic):
+# http://wehda.alwehda.gov.sy/_print_veiw.asp?FileName=12521710520070926111247
+# 
+# which using Google's translate tools says:
+# Council of Ministers also approved the commencement of work on 
+# identifying the winter time as of Friday, 2/11/2007 where the 60th 
+# minute delay at midnight Thursday 1/11/2007.
+Rule	Syria	2007	only	-	Nov	 Fri>=1	0:00	0	-
+
+# From Stephen Colebourne (2008-03-17):
+# For everyone's info, I saw an IATA time zone change for [Syria] for
+# this month (March 2008) in the last day or so...This is the data IATA
+# are now using:
+# Country     Time Standard   --- DST Start ---   --- DST End ---  DST
+# Name        Zone Variation   Time    Date        Time    Date
+# Variation
+# Syrian Arab
+# Republic    SY    +0200      2200  03APR08       2100  30SEP08   +0300
+#                              2200  02APR09       2100  30SEP09   +0300
+#                              2200  01APR10       2100  30SEP10   +0300
+
+# From Arthur David Olson (2008-03-17):
+# Here's a link to English-language coverage by the Syrian Arab News
+# Agency (SANA)...
+# <a href="http://www.sana.sy/eng/21/2008/03/11/165173.htm">
+# http://www.sana.sy/eng/21/2008/03/11/165173.htm
+# </a>...which reads (in part) "The Cabinet approved the suggestion of the
+# Ministry of Electricity to begin daylight savings time on Friday April
+# 4th, advancing clocks one hour ahead on midnight of Thursday April 3rd."
+# Since Syria is two hours east of UTC, the 2200 and 2100 transition times
+# shown above match up with midnight in Syria.
+
+# From Arthur David Olson (2008-03-18):
+# My buest guess at a Syrian rule is "the Friday nearest April 1";
+# coding that involves either using a "Mar Fri>=29" construct that old time zone
+# compilers can't handle  or having multiple Rules (a la Israel).
+# For now, use "Apr Fri>=1", and go with IATA on a uniform Sep 30 end.
+
+Rule	Syria	2008	max	-	Apr	Fri>=1	0:00	1:00	S
+Rule	Syria	2008	max	-	Oct	1	0:00	0	-
+
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Damascus	2:25:12 -	LMT	1920	# Dimashq
 			2:00	Syria	EE%sT
@@ -1825,13 +1901,13 @@ Zone	Asia/Tashkent	4:37:12 -	LMT	1924 May  2
 
 # Vietnam
 
-# From Paul Eggert (1993-11-18):
-# Saigon's official name is Thanh-Pho Ho Chi Minh, but it's too long.
-# We'll stick with the traditional name for now.
+# From Arthur David Olson (2008-03-18):
+# The English-language name of Vietnam's most populous city is "Ho Chi Min City";
+# we use Ho_Chi_Minh below to avoid a name of more than 14 characters.
 
 # From Shanks & Pottenger:
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Saigon	7:06:40 -	LMT	1906 Jun  9
+Zone	Asia/Ho_Chi_Minh	7:06:40 -	LMT	1906 Jun  9
 			7:06:20	-	SMT	1911 Mar 11 0:01 # Saigon MT?
 			7:00	-	ICT	1912 May
 			8:00	-	ICT	1931 May
diff --git a/libc/timezone/backward b/libc/timezone/backward
index 7c922604e..a65991c2d 100644
--- a/libc/timezone/backward
+++ b/libc/timezone/backward
@@ -1,4 +1,4 @@
-# @(#)backward	8.3
+# @(#)backward	8.6
 
 # This file provides links between current names for time zones
 # and their old names.  Many names changed in late 1993.
@@ -24,12 +24,15 @@ Link	America/St_Thomas	America/Virgin
 Link	Asia/Ashgabat		Asia/Ashkhabad
 Link	Asia/Chongqing		Asia/Chungking
 Link	Asia/Dhaka		Asia/Dacca
+Link	Asia/Kolkata		Asia/Calcutta
 Link	Asia/Macau		Asia/Macao
 Link	Asia/Jerusalem		Asia/Tel_Aviv
+Link	Asia/Ho_Chi_Minh	Asia/Saigon
 Link	Asia/Thimphu		Asia/Thimbu
 Link	Asia/Makassar		Asia/Ujung_Pandang
 Link	Asia/Ulaanbaatar	Asia/Ulan_Bator
 Link	Atlantic/Faroe		Atlantic/Faeroe
+Link	Europe/Oslo		Atlantic/Jan_Mayen
 Link	Australia/Sydney	Australia/ACT
 Link	Australia/Sydney	Australia/Canberra
 Link	Australia/Lord_Howe	Australia/LHI
diff --git a/libc/timezone/europe b/libc/timezone/europe
index 60290ddc5..73eed00fc 100644
--- a/libc/timezone/europe
+++ b/libc/timezone/europe
@@ -1,4 +1,4 @@
-# @(#)europe	8.11
+# @(#)europe	8.12
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
@@ -1714,7 +1714,6 @@ Zone	Europe/Oslo	0:43:00 -	LMT	1895 Jan  1
 # come up with more definitive info about the timekeeping during the
 # war years it's probably best just do do the following for now:
 Link	Europe/Oslo	Arctic/Longyearbyen
-Link	Europe/Oslo	Atlantic/Jan_Mayen
 
 # Poland
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
diff --git a/libc/timezone/iso3166.tab b/libc/timezone/iso3166.tab
index 0e985e95b..8d6239958 100644
--- a/libc/timezone/iso3166.tab
+++ b/libc/timezone/iso3166.tab
@@ -1,12 +1,12 @@
 # ISO 3166 alpha-2 country codes
 #
-# @(#)iso3166.tab	8.4
+# @(#)iso3166.tab	8.5
 #
 # From Paul Eggert (2006-09-27):
 #
 # This file contains a table with the following columns:
 # 1.  ISO 3166-1 alpha-2 country code, current as of
-#     ISO 3166-1 Newsletter No. V-12 (2006-09-26).  See:
+#     ISO 3166-1 Newsletter VI-1 (2007-09-21).  See:
 #     <a href="http://www.iso.org/iso/en/prods-services/iso3166ma/index.html">
 #     ISO 3166 Maintenance agency (ISO 3166/MA)
 #     </a>.
@@ -47,6 +47,7 @@ BG	Bulgaria
 BH	Bahrain
 BI	Burundi
 BJ	Benin
+BL	St Barthelemy
 BM	Bermuda
 BN	Brunei
 BO	Bolivia
@@ -159,6 +160,7 @@ MA	Morocco
 MC	Monaco
 MD	Moldova
 ME	Montenegro
+MF	St Martin (French part)
 MG	Madagascar
 MH	Marshall Islands
 MK	Macedonia
diff --git a/libc/timezone/leapseconds b/libc/timezone/leapseconds
index 583451e49..35df858d7 100644
--- a/libc/timezone/leapseconds
+++ b/libc/timezone/leapseconds
@@ -1,4 +1,4 @@
-# @(#)leapseconds	8.4
+# @(#)leapseconds	8.5
 
 # Allowance for leapseconds added to each timezone file.
 
@@ -46,26 +46,27 @@ Leap	1998	Dec	31	23:59:60	+	S
 Leap	2005	Dec	31	23:59:60	+	S
 
 # INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)
+#
 # SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE
 #
 # SERVICE DE LA ROTATION TERRESTRE
-# OBSERVATOIRE DE PARIS
+# OBSERVATOIRE DE PARIS				
 # 61, Av. de l'Observatoire 75014 PARIS (France)
 # Tel.      : 33 (0) 1 40 51 22 26
 # FAX       : 33 (0) 1 40 51 22 91
 # Internet  : services.iers@obspm.fr
 #
-# Paris, 28 June 2007
+# Paris, 18 January 2008
 #
-# Bulletin C 34
+# Bulletin C 35
 #
-# To authorities responsible
+# To authorities responsible		
 # for the measurement and
-# distribution of time
+# distribution of time	
 #
 # INFORMATION ON UTC - TAI
 #
-# NO positive leap second will be introduced at the end of December 2007.
+# NO positive leap second will be introduced at the end of June 2008.
 # The difference between Coordinated Universal Time UTC and the
 # International Atomic Time TAI is :		
 #
@@ -77,6 +78,6 @@ Leap	2005	Dec	31	23:59:60	+	S
 # will be no time step at the next possible date.
 #
 # Daniel GAMBIS
-# Director			
-# Earth Orientation Center of IERS
+# Head			
+# Earth Orientation Center of the IERS
 # Observatoire de Paris, France
diff --git a/libc/timezone/northamerica b/libc/timezone/northamerica
index 73e13a520..60e5d51e0 100644
--- a/libc/timezone/northamerica
+++ b/libc/timezone/northamerica
@@ -1,4 +1,4 @@
-# @(#)northamerica	8.18
+# @(#)northamerica	8.23
 # <pre>
 
 # also includes Central America and the Caribbean
@@ -2187,6 +2187,69 @@ Zone America/Costa_Rica	-5:36:20 -	LMT	1890		# San Jose
 # says Cuban clocks will advance at midnight on March 10.
 # For lack of better information, assume Cuba will use US rules,
 # except that it switches at midnight standard time as usual.
+#
+# From Steffen Thorsen (2007-10-25):
+# Carlos Alberto Fonseca Arauz informed me that Cuba will end DST one week 
+# earlier - on the last Sunday of October, just like in 2006.
+# 
+# He supplied these references:
+# 
+# http://www.prensalatina.com.mx/article.asp?ID=%7B4CC32C1B-A9F7-42FB-8A07-8631AFC923AF%7D&language=ES
+# http://actualidad.terra.es/sociedad/articulo/cuba_llama_ahorrar_energia_cambio_1957044.htm
+# 
+# From Alex Kryvenishev (2007-10-25):
+# Here is also article from Granma (Cuba):
+# 
+# [Regira] el Horario Normal desde el [proximo] domingo 28 de octubre
+# http://www.granma.cubaweb.cu/2007/10/24/nacional/artic07.html
+# 
+# http://www.worldtimezone.com/dst_news/dst_news_cuba03.html
+
+# From Arthur David Olson (2008-03-09):
+# I'm in Maryland which is now observing United States Eastern Daylight
+# Time. At 9:44 local time I used RealPlayer to listen to
+# <a href="http://media.enet.cu/radioreloj">
+# http://media.enet.cu/radioreloj
+# </a>, a Cuban information station, and heard
+# the time announced as "ocho cuarenta y cuatro" ("eight forty-four"),
+# indicating that Cuba is still on standard time.
+
+# From Steffen Thorsen (2008-03-12):
+# It seems that Cuba will start DST on Sunday, 2007-03-16...
+# It was announced yesterday, according to this source (in Spanish):
+# <a href="http://www.nnc.cubaweb.cu/marzo-2008/cien-1-11-3-08.htm">
+# http://www.nnc.cubaweb.cu/marzo-2008/cien-1-11-3-08.htm
+# </a>
+#
+# Some more background information is posted here:
+# <a href="http://www.timeanddate.com/news/time/cuba-starts-dst-march-16.html">
+# http://www.timeanddate.com/news/time/cuba-starts-dst-march-16.html
+# </a>
+#
+# The article also says that Cuba has been observing DST since 1963,
+# while Shanks (and tzdata) has 1965 as the first date (except in the
+# 1940's). Many other web pages in Cuba also claim that it has been
+# observed since 1963, but with the exception of 1970 - an exception
+# which is not present in tzdata/Shanks. So there is a chance we need to
+# change some historic records as well.
+#
+# One example:
+# <a href="http://www.radiohc.cu/espanol/noticias/mar07/11mar/hor.htm">
+# http://www.radiohc.cu/espanol/noticias/mar07/11mar/hor.htm
+# </a>
+
+# From Jesper Norgaard Welen (2008-03-13):
+# The Cuban time change has just been confirmed on the most authoritative
+# web site, the Granma.  Please check out
+# <a href="http://www.granma.cubaweb.cu/2008/03/13/nacional/artic10.html">
+# http://www.granma.cubaweb.cu/2008/03/13/nacional/artic10.html
+# </a>
+#
+# Basically as expected after Steffen Thorsens information, the change
+# will take place midnight between Saturday and Sunday.
+
+# From Arthur David Olson (2008-03-12):
+# Assume Sun>=15 (third Sunday) going forward.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Cuba	1928	only	-	Jun	10	0:00	1:00	D
@@ -2218,9 +2281,9 @@ Rule	Cuba	1997	only	-	Oct	12	0:00s	0	S
 Rule	Cuba	1998	1999	-	Mar	lastSun	0:00s	1:00	D
 Rule	Cuba	1998	2003	-	Oct	lastSun	0:00s	0	S
 Rule	Cuba	2000	2006	-	Apr	Sun>=1	0:00s	1:00	D
-Rule	Cuba	2006	only	-	Oct	lastSun	0:00s	0	S
-Rule	Cuba	2007	max	-	Mar	Sun>=8	0:00s	1:00	D
-Rule	Cuba	2007	max	-	Nov	Sun>=1	0:00s	0	S
+Rule	Cuba	2006	max	-	Oct	lastSun	0:00s	0	S
+Rule	Cuba	2007	only	-	Mar	Sun>=8	0:00s	1:00	D
+Rule	Cuba	2008	max	-	Mar	Sun>=15	0:00s	1:00	D
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Havana	-5:29:28 -	LMT	1890
@@ -2287,6 +2350,10 @@ Zone	America/Grenada	-4:07:00 -	LMT	1911 Jul	# St George's
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Guadeloupe	-4:06:08 -	LMT	1911 Jun 8	# Pointe a Pitre
 			-4:00	-	AST
+# St Barthelemy
+Link America/Guadeloupe	America/St_Barthelemy
+# St Martin (French part)
+Link America/Guadeloupe	America/Marigot
 
 # Guatemala
 #
diff --git a/libc/timezone/private.h b/libc/timezone/private.h
index d64c724ef..008d468ac 100644
--- a/libc/timezone/private.h
+++ b/libc/timezone/private.h
@@ -21,7 +21,7 @@
 
 #ifndef lint
 #ifndef NOID
-static char	privatehid[] = "@(#)private.h	8.3";
+static char	privatehid[] = "@(#)private.h	8.6";
 #endif /* !defined NOID */
 #endif /* !defined lint */
 
@@ -48,10 +48,6 @@ static char	privatehid[] = "@(#)private.h	8.3";
 #define HAVE_SETTIMEOFDAY	3
 #endif /* !defined HAVE_SETTIMEOFDAY */
 
-#ifndef HAVE_STRERROR
-#define HAVE_STRERROR		1
-#endif /* !defined HAVE_STRERROR */
-
 #ifndef HAVE_SYMLINK
 #define HAVE_SYMLINK		1
 #endif /* !defined HAVE_SYMLINK */
@@ -109,17 +105,15 @@ static char	privatehid[] = "@(#)private.h	8.3";
 #endif /* !defined WEXITSTATUS */
 
 #if HAVE_UNISTD_H
-#include "unistd.h"	/* for F_OK and R_OK */
+#include "unistd.h"	/* for F_OK, R_OK, and other POSIX goodness */
 #endif /* HAVE_UNISTD_H */
 
-#if !HAVE_UNISTD_H
 #ifndef F_OK
 #define F_OK	0
 #endif /* !defined F_OK */
 #ifndef R_OK
 #define R_OK	4
 #endif /* !defined R_OK */
-#endif /* !HAVE_UNISTD_H */
 
 /* Unlike <ctype.h>'s isdigit, this also works if c < 0 | c > UCHAR_MAX. */
 #define is_digit(c) ((unsigned)(c) - '0' <= 9)
@@ -165,91 +159,27 @@ typedef long		int_fast64_t;
 */
 
 /*
-** If your compiler lacks prototypes, "#define P(x) ()".
-*/
-
-#ifndef P
-#define P(x)	x
-#endif /* !defined P */
-
-/*
-** SunOS 4.1.1 headers lack EXIT_SUCCESS.
-*/
-
-#ifndef EXIT_SUCCESS
-#define EXIT_SUCCESS	0
-#endif /* !defined EXIT_SUCCESS */
-
-/*
-** SunOS 4.1.1 headers lack EXIT_FAILURE.
-*/
-
-#ifndef EXIT_FAILURE
-#define EXIT_FAILURE	1
-#endif /* !defined EXIT_FAILURE */
-
-/*
-** SunOS 4.1.1 headers lack FILENAME_MAX.
-*/
-
-#ifndef FILENAME_MAX
-
-#ifndef MAXPATHLEN
-#ifdef unix
-#include "sys/param.h"
-#endif /* defined unix */
-#endif /* !defined MAXPATHLEN */
-
-#ifdef MAXPATHLEN
-#define FILENAME_MAX	MAXPATHLEN
-#endif /* defined MAXPATHLEN */
-#ifndef MAXPATHLEN
-#define FILENAME_MAX	1024		/* Pure guesswork */
-#endif /* !defined MAXPATHLEN */
-
-#endif /* !defined FILENAME_MAX */
-
-/*
-** SunOS 4.1.1 libraries lack remove.
-*/
-
-#ifndef remove
-extern int	unlink P((const char * filename));
-#define remove	unlink
-#endif /* !defined remove */
-
-/*
-** Some ancient errno.h implementations don't declare errno.
-** But some newer errno.h implementations define it as a macro.
-** Fix the former without affecting the latter.
-*/
-
-#ifndef errno
-extern int errno;
-#endif /* !defined errno */
-
-/*
 ** Some time.h implementations don't declare asctime_r.
 ** Others might define it as a macro.
 ** Fix the former without affecting the latter.
 */
 
 #ifndef asctime_r
-extern char *	asctime_r();
+extern char *	asctime_r(struct tm const *, char *);
 #endif
 
 /*
 ** Private function declarations.
 */
 
-char *		icalloc P((int nelem, int elsize));
-char *		icatalloc P((char * old, const char * new));
-char *		icpyalloc P((const char * string));
-char *		imalloc P((int n));
-void *		irealloc P((void * pointer, int size));
-void		icfree P((char * pointer));
-void		ifree P((char * pointer));
-const char *	scheck P((const char * string, const char * format));
+char *		icalloc(int nelem, int elsize);
+char *		icatalloc(char * old, const char * new);
+char *		icpyalloc(const char * string);
+char *		imalloc(int n);
+void *		irealloc(void * pointer, int size);
+void		icfree(char * pointer);
+void		ifree(char * pointer);
+const char *	scheck(const char * string, const char * format);
 
 /*
 ** Finally, some convenience items.
@@ -337,8 +267,8 @@ const char *	scheck P((const char * string, const char * format));
 #if HAVE_INCOMPATIBLE_CTIME_R
 #undef asctime_r
 #undef ctime_r
-char *asctime_r P((struct tm const *, char *));
-char *ctime_r P((time_t const *, char *));
+char *asctime_r(struct tm const *, char *);
+char *ctime_r(time_t const *, char *);
 #endif /* HAVE_INCOMPATIBLE_CTIME_R */
 
 #ifndef YEARSPERREPEAT
diff --git a/libc/timezone/southamerica b/libc/timezone/southamerica
index bfda82764..43f73d323 100644
--- a/libc/timezone/southamerica
+++ b/libc/timezone/southamerica
@@ -1,4 +1,4 @@
-# @(#)southamerica	8.12
+# @(#)southamerica	8.19
 # <pre>
 
 # This data is by no means authoritative; if you think you know better,
@@ -105,7 +105,11 @@ Rule	Arg	1989	1992	-	Oct	Sun>=15	0:00	1:00	S
 # which did not result in the switch of a time zone, as they stayed 9 hours
 # from the International Date Line.
 Rule	Arg	1999	only	-	Oct	Sun>=1	0:00	1:00	S
-Rule	Arg	2000	only	-	Mar	Sun>=1	0:00	0	-
+# From Paul Eggert (2007-12-28):
+# DST was set to expire on March 5, not March 3, but since it was converted
+# to standard time on March 3 it's more convenient for us to pretend that
+# it ended on March 3.
+Rule	Arg	2000	only	-	Mar	3	0:00	0	-
 #
 # From Peter Gradelski via Steffen Thorsen (2000-03-01):
 # We just checked with our Sao Paulo office and they say the government of
@@ -140,6 +144,30 @@ Rule	Arg	2000	only	-	Mar	Sun>=1	0:00	0	-
 # This kind of things had always been done this way in Argentina.
 # We are still -03:00 all year round in all of the country.
 #
+# From Steffen Thorsen (2007-12-21):
+# A user (Leonardo Chaim) reported that Argentina will adopt DST....
+# all of the country (all Zone-entries) are affected.  News reports like
+# http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate
+# that Argentina will use DST next year as well, from October to
+# March, although exact rules are not given.
+#
+# From Jesper Norgaard Welen (2007-12-26)
+# The last hurdle of Argentina DST is over, the proposal was approved in
+# the lower chamber too (Deputados) with a vote 192 for and 2 against.
+# By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to
+# the original scanned proposal, where the dates and the zero hours are
+# clear and unambiguous...This is the article about final approval:
+# <a href="http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996">
+# http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996
+# </a>
+#
+# From Paul Eggert (2007-12-22):
+# For dates after mid-2008, the following rules are my guesses and
+# are quite possibly wrong, but are more likely than no DST at all.
+Rule	Arg	2007	only	-	Dec	30	0:00	1:00	S
+Rule	Arg	2008	max	-	Mar	Sun>=15	0:00	0	-
+Rule	Arg	2008	max	-	Oct	Sun>=1	0:00	1:00	S
+ 
 # From Mariano Absatz (2004-05-21):
 # Today it was officially published that the Province of Mendoza is changing
 # its timezone this winter... starting tomorrow night....
@@ -200,6 +228,76 @@ Rule	Arg	2000	only	-	Mar	Sun>=1	0:00	0	-
 # http://www.sanjuan.gov.ar/prensa/archivo/000426.html
 # http://www.sanjuan.gov.ar/prensa/archivo/000441.html
 
+# From Alex Krivenyshev (2008-01-17):
+# Here are articles that Argentina Province San Luis is planning to end DST
+# as earlier as upcoming Monday January 21, 2008 or February 2008:
+#
+# Provincia argentina retrasa reloj y marca diferencia con resto del pais
+# (Argentine Province delayed clock and mark difference with the rest of the
+# country)
+# <a href="http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel">
+# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel
+# </a>
+#
+# Es inminente que en San Luis atrasen una hora los relojes
+# (It is imminent in San Luis clocks one hour delay)
+# <a href="http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414">
+# http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414
+# </a>
+#
+# <a href="http://www.worldtimezone.net/dst_news/dst_news_argentina02.html">
+# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html
+# </a>
+
+# From Jesper Norgaard Welen (2008-01-18):
+# The page of the San Luis provincial government
+# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812">
+# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812
+# </a>
+# confirms what Alex Krivenyshev has earlier sent to the tz
+# emailing list about that San Luis plans to return to standard
+# time much earlier than the rest of the country. It also
+# confirms that upon request the provinces San Juan and Mendoza 
+# refused to follow San Luis in this change. 
+# 
+# The change is supposed to take place Monday the 21.st at 0:00
+# hours. As far as I understand it if this goes ahead, we need
+# a new timezone for San Luis (although there are also documented
+# independent changes in the southamerica file of San Luis in
+# 1990 and 1991 which has not been confirmed).
+
+# From Jesper Norgaard Welen (2008-01-25):
+# Unfortunately the below page has become defunct, about the San Luis
+# time change. Perhaps because it now is part of a group of pages "Most
+# important pages of 2008."
+#
+# You can use
+# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834">
+# http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834
+# </a>
+# instead it seems. Or use "Buscador" from the main page of the San Luis
+# government, and fill in "huso" and click OK, and you will get 3 pages
+# from which the first one is identical to the above.
+
+# From Mariano Absatz (2008-01-28):
+# I can confirm that the Province of San Luis (and so far only that
+# province) decided to go back to UTC-3 effective midnight Jan 20th 2008
+# (that is, Monday 21st at 0:00 is the time the clocks were delayed back
+# 1 hour), and they intend to keep UTC-3 as their timezone all year round
+# (that is, unless they change their mind any minute now).
+#
+# So we'll have to add yet another city to 'southamerica' (I think San
+# Luis city is the mos populated city in the Province, so it'd be
+# America/Argentina/San_Luis... of course I can't remember if San Luis's
+# history of particular changes goes along with Mendoza or San Juan :-(
+# (I only remember not being able to collect hard facts about San Luis
+# back in 2004, when these provinces changed to UTC-4 for a few days, I
+# mailed them personally and never got an answer).
+
+# From Arthur David Olson (2008-03-15):
+# Until there's better information, asssume San Luis was like San Juan
+# rather than Mendoza (since San Juan has a simpler DST history).
+
 # Unless otherwise specified, data are from Shanks & Pottenger through 1992,
 # from the IATA otherwise.  As noted below, Shanks & Pottenger say that
 # America/Cordoba split into 6 subregions during 1991/1992, but we
@@ -214,7 +312,7 @@ Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
 			-4:00	Arg	AR%sT	1969 Oct  5
 			-3:00	Arg	AR%sT	1999 Oct  3
 			-4:00	Arg	AR%sT	2000 Mar  3
-			-3:00	-	ART
+			-3:00	Arg	AR%sT
 #
 # Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
 # Formosa (FM), Salta (SA), Santiago del Estero (SE), Cordoba (CB),
@@ -237,7 +335,7 @@ Zone America/Argentina/Cordoba -4:16:48 - LMT	1894 Oct 31
 			-4:00	-	WART	1991 Oct 20
 			-3:00	Arg	AR%sT	1999 Oct  3
 			-4:00	Arg	AR%sT	2000 Mar  3
-			-3:00	-	ART
+			-3:00	Arg	AR%sT
 #
 # Tucuman (TM)
 Zone America/Argentina/Tucuman -4:20:52 - LMT	1894 Oct 31
@@ -250,7 +348,7 @@ Zone America/Argentina/Tucuman -4:20:52 - LMT	1894 Oct 31
 			-4:00	Arg	AR%sT	2000 Mar  3
 			-3:00	-	ART	2004 Jun  1
 			-4:00	-	WART	2004 Jun 13
-			-3:00	-	ART
+			-3:00	Arg	AR%sT
 #
 # La Rioja (LR)
 Zone America/Argentina/La_Rioja -4:27:24 - LMT	1894 Oct 31
@@ -263,7 +361,7 @@ Zone America/Argentina/La_Rioja -4:27:24 - LMT	1894 Oct 31
 			-4:00	Arg	AR%sT	2000 Mar  3
 			-3:00	-	ART	2004 Jun  1
 			-4:00	-	WART	2004 Jun 20
-			-3:00	-	ART
+			-3:00	Arg	AR%sT
 #
 # San Juan (SJ)
 Zone America/Argentina/San_Juan -4:34:04 - LMT	1894 Oct 31
@@ -276,7 +374,7 @@ Zone America/Argentina/San_Juan -4:34:04 - LMT	1894 Oct 31
 			-4:00	Arg	AR%sT	2000 Mar  3
 			-3:00	-	ART	2004 May 31
 			-4:00	-	WART	2004 Jul 25
-			-3:00	-	ART
+			-3:00	Arg	AR%sT
 #
 # Jujuy (JY)
 Zone America/Argentina/Jujuy -4:21:12 -	LMT	1894 Oct 31
@@ -290,7 +388,7 @@ Zone America/Argentina/Jujuy -4:21:12 -	LMT	1894 Oct 31
 			-3:00	1:00	ARST	1992
 			-3:00	Arg	AR%sT	1999 Oct  3
 			-4:00	Arg	AR%sT	2000 Mar  3
-			-3:00	-	ART
+			-3:00	Arg	AR%sT
 #
 # Catamarca (CT), Chubut (CH)
 Zone America/Argentina/Catamarca -4:23:08 - LMT	1894 Oct 31
@@ -303,7 +401,7 @@ Zone America/Argentina/Catamarca -4:23:08 - LMT	1894 Oct 31
 			-4:00	Arg	AR%sT	2000 Mar  3
 			-3:00	-	ART	2004 Jun  1
 			-4:00	-	WART	2004 Jun 20
-			-3:00	-	ART
+			-3:00	Arg	AR%sT
 #
 # Mendoza (MZ)
 Zone America/Argentina/Mendoza -4:35:16 - LMT	1894 Oct 31
@@ -320,6 +418,20 @@ Zone America/Argentina/Mendoza -4:35:16 - LMT	1894 Oct 31
 			-4:00	Arg	AR%sT	2000 Mar  3
 			-3:00	-	ART	2004 May 23
 			-4:00	-	WART	2004 Sep 26
+			-3:00	Arg	AR%sT
+#
+# San Luis (SL)
+Zone America/Argentina/San_Luis -4:25:24 - LMT	1894 Oct 31
+			-4:16:48 -	CMT	1920 May
+			-4:00	-	ART	1930 Dec
+			-4:00	Arg	AR%sT	1969 Oct  5
+			-3:00	Arg	AR%sT	1991 Mar  1
+			-4:00	-	WART	1991 May  7
+			-3:00	Arg	AR%sT	1999 Oct  3
+			-4:00	Arg	AR%sT	2000 Mar  3
+			-3:00	-	ART	2004 May 31
+			-4:00	-	WART	2004 Jul 25
+			-3:00	Arg	AR%sT	2008 Jan 21
 			-3:00	-	ART
 #
 # Santa Cruz (SC)
@@ -331,7 +443,7 @@ Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
 			-4:00	Arg	AR%sT	2000 Mar  3
 			-3:00	-	ART	2004 Jun  1
 			-4:00	-	WART	2004 Jun 20
-			-3:00	-	ART
+			-3:00	Arg	AR%sT
 #
 # Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF)
 Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
@@ -342,7 +454,7 @@ Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
 			-4:00	Arg	AR%sT	2000 Mar  3
 			-3:00	-	ART	2004 May 30
 			-4:00	-	WART	2004 Jun 20
-			-3:00	-	ART
+			-3:00	Arg	AR%sT
 
 # Aruba
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -731,6 +843,26 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 # America/Santiago.  The pre-1980 Pacific/Easter data are dubious,
 # but we have no other source.
 
+# From German Poo-Caaman~o (2008-03-03):
+# Due to drought, Chile extends Daylight Time in three weeks.  This
+# is one-time change (Saturday 3/29 at 24:00 for America/Santiago
+# and Saturday 3/29 at 22:00 for Pacific/Easter)
+# The Supreme Decree is located at 
+# <a href="http://www.shoa.cl/servicios/supremo316.pdf">
+# http://www.shoa.cl/servicios/supremo316.pdf
+# </a>
+# and the instructions for 2008 are located in:
+# <a href="http://www.horaoficial.cl/cambio.htm">
+# http://www.horaoficial.cl/cambio.htm
+# </a>.
+
+# From José Miguel Garrido (2008-03-05):
+# ...
+# You could see the announces of the change on 
+# <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm">
+# http://www.shoa.cl/noticias/2008/04hora/hora.htm
+# </a>.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Chile	1927	1932	-	Sep	 1	0:00	1:00	S
 Rule	Chile	1928	1932	-	Apr	 1	0:00	0	-
@@ -761,7 +893,11 @@ Rule	Chile	1998	only	-	Mar	Sun>=9	3:00u	0	-
 Rule	Chile	1998	only	-	Sep	27	4:00u	1:00	S
 Rule	Chile	1999	only	-	Apr	 4	3:00u	0	-
 Rule	Chile	1999	max	-	Oct	Sun>=9	4:00u	1:00	S
-Rule	Chile	2000	max	-	Mar	Sun>=9	3:00u	0	-
+Rule	Chile	2000	2007	-	Mar	Sun>=9	3:00u	0	-
+# N.B.: the end of March 29 in Chile is March 30 in Universal time,
+# which is used below in specifying the transition.
+Rule	Chile	2008	only	-	Mar	30	3:00u	0	-
+Rule	Chile	2009	max	-	Mar	Sun>=9	3:00u	0	-
 # IATA SSIM anomalies: (1992-02) says 1992-03-14;
 # (1996-09) says 1998-03-08.  Ignore these.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -1107,19 +1243,17 @@ Zone America/Montevideo	-3:44:44 -	LMT	1898 Jun 28
 
 # Venezuela
 #
-# From Kiraz Janicke (2007-09-25), in
-# http://www.venezuelanalysis.com/analysis/2645:
-# The proposal ... involves turning the clock back half an hour from
-# +4.00 Greenwich Mean Time (GMT), to +4.30GMT, the time zone
-# Venezuela had until December 31, 1964, when the current time zone
-# was adopted. The change was due to take place on September 17 and
-# then on September 24, but has since been postponed until December
-# 31, to allow for compliance with international organizations, such
-# as the International Office of Weights and Measures.
+# From John Stainforth (2007-11-28):
+# ... the change for Venezuela originally expected for 2007-12-31 has
+# been brought forward to 2007-12-09.  The official announcement was
+# published today in the "Gaceta Oficial de la Republica Bolivariana
+# de Venezuela, numero 38.819" (official document for all laws or
+# resolution publication)
+# http://www.globovision.com/news.php?nid=72208
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Caracas	-4:27:44 -	LMT	1890
 			-4:27:40 -	CMT	1912 Feb 12 # Caracas Mean Time?
 			-4:30	-	VET	1965	     # Venezuela Time
-			-4:00	-	VET	2008
+			-4:00	-	VET	2007 Dec  9 03:00
 			-4:30	-	VET
diff --git a/libc/timezone/zdump.c b/libc/timezone/zdump.c
index 6bf540aef..82c91e485 100644
--- a/libc/timezone/zdump.c
+++ b/libc/timezone/zdump.c
@@ -1,4 +1,4 @@
-static char	elsieid[] = "@(#)zdump.c	8.4";
+static char	elsieid[] = "@(#)zdump.c	8.6";
 
 /*
 ** This code has been made independent of the rest of the time
@@ -88,6 +88,9 @@ static char	elsieid[] = "@(#)zdump.c	8.4";
 #define SECSPERNYEAR	(SECSPERDAY * DAYSPERNYEAR)
 #define SECSPERLYEAR	(SECSPERNYEAR + SECSPERDAY)
 
+#ifndef HAVE_GETTEXT
+#define HAVE_GETTEXT 0
+#endif
 #if HAVE_GETTEXT
 #include "locale.h"	/* for setlocale */
 #include "libintl.h"
@@ -129,13 +132,9 @@ static char	elsieid[] = "@(#)zdump.c	8.4";
 #define TZ_DOMAIN "tz"
 #endif /* !defined TZ_DOMAIN */
 
-#ifndef P
-#define P(x)	x
-#endif /* !defined P */
-
 extern char **	environ;
-extern int	getopt P((int argc, char * const argv[],
-			const char * options));
+extern int	getopt(int argc, char * const argv[],
+			const char * options);
 extern char *	optarg;
 extern int	optind;
 extern char *	tzname[2];
@@ -146,15 +145,15 @@ static size_t	longest;
 static char *	progname;
 static int	warned;
 
-static char *	abbr P((struct tm * tmp));
-static void	abbrok P((const char * abbrp, const char * zone));
-static long	delta P((struct tm * newp, struct tm * oldp));
-static void	dumptime P((const struct tm * tmp));
-static time_t	hunt P((char * name, time_t lot, time_t	hit));
-static void	setabsolutes P((void));
-static void	show P((char * zone, time_t t, int v));
-static const char *	tformat P((void));
-static time_t	yeartot P((long y));
+static char *	abbr(struct tm * tmp);
+static void	abbrok(const char * abbrp, const char * zone);
+static long	delta(struct tm * newp, struct tm * oldp);
+static void	dumptime(const struct tm * tmp);
+static time_t	hunt(char * name, time_t lot, time_t	hit);
+static void	setabsolutes(void);
+static void	show(char * zone, time_t t, int v);
+static const char *	tformat(void);
+static time_t	yeartot(long y);
 
 #ifndef TYPECHECK
 #define my_localtime	localtime
@@ -394,7 +393,7 @@ _("%s: usage is %s [ --version ] [ -v ] [ -c [loyear,]hiyear ] zonename ...\n"),
 }
 
 static void
-setabsolutes()
+setabsolutes(void)
 {
 	if (0.5 == (time_t) 0.5) {
 		/*
@@ -592,7 +591,7 @@ struct tm *	tmp;
 */
 
 static const char *
-tformat()
+tformat(void)
 {
 	if (0.5 == (time_t) 0.5) {	/* floating */
 		if (sizeof (time_t) > sizeof (double))
diff --git a/libc/timezone/zic.c b/libc/timezone/zic.c
index 3cb0b171f..5f8028e48 100644
--- a/libc/timezone/zic.c
+++ b/libc/timezone/zic.c
@@ -3,7 +3,7 @@
 ** 2006-07-17 by Arthur David Olson.
 */
 
-static char	elsieid[] = "@(#)zic.c	8.14";
+static char	elsieid[] = "@(#)zic.c	8.17";
 
 #include "private.h"
 #include "locale.h"
@@ -99,70 +99,66 @@ struct zone {
 	zic_t		z_untiltime;
 };
 
-extern int	getopt P((int argc, char * const argv[],
-			const char * options));
-extern int	link P((const char * fromname, const char * toname));
+extern int	getopt(int argc, char * const argv[],
+			const char * options);
+extern int	link(const char * fromname, const char * toname);
 extern char *	optarg;
 extern int	optind;
 
-static void	addtt P((zic_t starttime, int type));
-static int	addtype P((long gmtoff, const char * abbr, int isdst,
-				int ttisstd, int ttisgmt));
-static void	leapadd P((zic_t t, int positive, int rolling, int count));
-static void	adjleap P((void));
-static void	associate P((void));
-static int	ciequal P((const char * ap, const char * bp));
-static void	convert P((long val, char * buf));
-static void	convert64 P((zic_t val, char * buf));
-static void	dolink P((const char * fromfield, const char * tofield));
-static void	doabbr P((char * abbr, const char * format,
-			const char * letters, int isdst, int doquotes));
-static void	eat P((const char * name, int num));
-static void	eats P((const char * name, int num,
-			const char * rname, int rnum));
-static long	eitol P((int i));
-static void	error P((const char * message));
-static char **	getfields P((char * buf));
-static long	gethms P((const char * string, const char * errstrng,
-			int signable));
-static void	infile P((const char * filename));
-static void	inleap P((char ** fields, int nfields));
-static void	inlink P((char ** fields, int nfields));
-static void	inrule P((char ** fields, int nfields));
-static int	inzcont P((char ** fields, int nfields));
-static int	inzone P((char ** fields, int nfields));
-static int	inzsub P((char ** fields, int nfields, int iscont));
-static int	is32 P((zic_t x));
-static int	itsabbr P((const char * abbr, const char * word));
-static int	itsdir P((const char * name));
-static int	lowerit P((int c));
-static char *	memcheck P((char * tocheck));
-static int	mkdirs P((char * filename));
-static void	newabbr P((const char * abbr));
-static long	oadd P((long t1, long t2));
-static void	outzone P((const struct zone * zp, int ntzones));
-static void	puttzcode P((long code, FILE * fp));
-static void	puttzcode64 P((zic_t code, FILE * fp));
-static int	rcomp P((const void * leftp, const void * rightp));
-static zic_t	rpytime P((const struct rule * rp, int wantedy));
-static void	rulesub P((struct rule * rp,
+static void	addtt(zic_t starttime, int type);
+static int	addtype(long gmtoff, const char * abbr, int isdst,
+				int ttisstd, int ttisgmt);
+static void	leapadd(zic_t t, int positive, int rolling, int count);
+static void	adjleap(void);
+static void	associate(void);
+static int	ciequal(const char * ap, const char * bp);
+static void	convert(long val, char * buf);
+static void	convert64(zic_t val, char * buf);
+static void	dolink(const char * fromfield, const char * tofield);
+static void	doabbr(char * abbr, const char * format,
+			const char * letters, int isdst, int doquotes);
+static void	eat(const char * name, int num);
+static void	eats(const char * name, int num,
+			const char * rname, int rnum);
+static long	eitol(int i);
+static void	error(const char * message);
+static char **	getfields(char * buf);
+static long	gethms(const char * string, const char * errstrng,
+			int signable);
+static void	infile(const char * filename);
+static void	inleap(char ** fields, int nfields);
+static void	inlink(char ** fields, int nfields);
+static void	inrule(char ** fields, int nfields);
+static int	inzcont(char ** fields, int nfields);
+static int	inzone(char ** fields, int nfields);
+static int	inzsub(char ** fields, int nfields, int iscont);
+static int	is32(zic_t x);
+static int	itsabbr(const char * abbr, const char * word);
+static int	itsdir(const char * name);
+static int	lowerit(int c);
+static char *	memcheck(char * tocheck);
+static int	mkdirs(char * filename);
+static void	newabbr(const char * abbr);
+static long	oadd(long t1, long t2);
+static void	outzone(const struct zone * zp, int ntzones);
+static void	puttzcode(long code, FILE * fp);
+static void	puttzcode64(zic_t code, FILE * fp);
+static int	rcomp(const void * leftp, const void * rightp);
+static zic_t	rpytime(const struct rule * rp, int wantedy);
+static void	rulesub(struct rule * rp,
 			const char * loyearp, const char * hiyearp,
 			const char * typep, const char * monthp,
-			const char * dayp, const char * timep));
-static int 	stringoffset P((char * result, long offset));
-static int	stringrule P((char * result, const struct rule * rp,
-			long dstoff, long gmtoff));
-static void 	stringzone P((char * result,
-			const struct zone * zp, int ntzones));
-static void	setboundaries P((void));
-static zic_t	tadd P((zic_t t1, long t2));
-static void	usage P((void));
-static void	writezone P((const char * name, const char * string));
-static int	yearistype P((int year, const char * type));
-
-#if !HAVE_STRERROR
-static char *	strerror P((int));
-#endif /* !HAVE_STRERROR */
+			const char * dayp, const char * timep);
+static int 	stringoffset(char * result, long offset);
+static int	stringrule(char * result, const struct rule * rp,
+			long dstoff, long gmtoff);
+static void 	stringzone(char * result,
+			const struct zone * zp, int ntzones);
+static void	setboundaries(void);
+static zic_t	tadd(zic_t t1, long t2);
+static void	usage(void);
+static void	writezone(const char * name, const char * string);
+static int	yearistype(int year, const char * type);
 
 static int		charcnt;
 static int		errors;
@@ -287,8 +283,8 @@ struct lookup {
 	const int	l_value;
 };
 
-static struct lookup const *	byword P((const char * string,
-					const struct lookup * lp));
+static struct lookup const *	byword(const char * string,
+					const struct lookup * lp);
 
 static struct lookup const	line_codes[] = {
 	{ "Rule",	LC_RULE },
@@ -405,19 +401,6 @@ char * const	ptr;
 ** Error handling.
 */
 
-#if !HAVE_STRERROR
-static char *
-strerror(errnum)
-int	errnum;
-{
-	extern char *	sys_errlist[];
-	extern int	sys_nerr;
-
-	return (errnum > 0 && errnum <= sys_nerr) ?
-		sys_errlist[errnum] : _("Unknown system error");
-}
-#endif /* !HAVE_STRERROR */
-
 static void
 eats(name, num, rname, rnum)
 const char * const	name;
@@ -471,7 +454,7 @@ const char * const	string;
 }
 
 static void
-usage P((void))
+usage(void)
 {
 	(void) fprintf(stderr, _("%s: usage is %s \
 [ --version ] [ -v ] [ -l localtime ] [ -p posixrules ] \\\n\
@@ -699,7 +682,7 @@ warning(_("hard link failed, symbolic link used"));
 #define TIME_T_BITS_IN_FILE	64
 
 static void
-setboundaries P((void))
+setboundaries(void)
 {
 	register int	i;
 
@@ -741,7 +724,7 @@ const void *	cp2;
 }
 
 static void
-associate P((void))
+associate(void)
 {
 	register struct zone *	zp;
 	register struct rule *	rp;
@@ -2012,7 +1995,8 @@ const int			zonecount;
 	}
 	for (i = 0; i < zonecount; ++i) {
 		zp = &zpfirst[i];
-		updateminmax(zp->z_untilrule.r_loyear);
+		if (i < zonecount - 1)
+			updateminmax(zp->z_untilrule.r_loyear);
 		for (j = 0; j < zp->z_nrules; ++j) {
 			rp = &zp->z_rules[j];
 			if (rp->r_lowasnum)
@@ -2043,8 +2027,11 @@ wp = ecpyalloc(_("no POSIX environment variable for zone"));
 		else	max_year = INT_MAX;
 	}
 	/*
-	** For the benefit of older systems, generate data through 2037.
+	** For the benefit of older systems,
+	** generate data from 1900 through 2037.
 	*/
+	if (min_year > 1900)
+		min_year = 1900;
 	if (max_year < 2037)
 		max_year = 2037;
 	for (i = 0; i < zonecount; ++i) {
@@ -2331,7 +2318,7 @@ int		count;
 }
 
 static void
-adjleap P((void))
+adjleap(void)
 {
 	register int	i;
 	register long	last = 0;
diff --git a/libc/timezone/zone.tab b/libc/timezone/zone.tab
index 8d4333ad9..1647036c0 100644
--- a/libc/timezone/zone.tab
+++ b/libc/timezone/zone.tab
@@ -1,4 +1,4 @@
-# @(#)zone.tab	8.11
+# @(#)zone.tab	8.16
 #
 # TZ zone descriptions
 #
@@ -42,7 +42,8 @@ AQ	-7824+10654	Antarctica/Vostok	Vostok Station, S Magnetic Pole
 AQ	-6640+14001	Antarctica/DumontDUrville	Dumont-d'Urville Station, Terre Adelie
 AQ	-690022+0393524	Antarctica/Syowa	Syowa Station, E Ongul I
 AR	-3436-05827	America/Argentina/Buenos_Aires	Buenos Aires (BA, CF)
-AR	-3124-06411	America/Argentina/Cordoba	most locations (CB, CC, CN, ER, FM, LP, MN, NQ, RN, SA, SE, SF, SL)
+AR	-3124-06411	America/Argentina/Cordoba	most locations (CB, CC, CN, ER, FM, LP, MN, NQ, RN, SA, SE, SF)
+AR	-3319-06621	America/Argentina/San_Luis	San Luis (SL)
 AR	-2411-06518	America/Argentina/Jujuy	Jujuy (JY)
 AR	-2649-06513	America/Argentina/Tucuman	Tucuman (TM)
 AR	-2828-06547	America/Argentina/Catamarca	Catamarca (CT), Chubut (CH)
@@ -77,6 +78,7 @@ BG	+4241+02319	Europe/Sofia
 BH	+2623+05035	Asia/Bahrain
 BI	-0323+02922	Africa/Bujumbura
 BJ	+0629+00237	Africa/Porto-Novo
+BL	+1753-06251	America/St_Barthelemy
 BM	+3217-06446	Atlantic/Bermuda
 BN	+0456+11455	Asia/Brunei
 BO	-1630-06809	America/La_Paz
@@ -208,7 +210,7 @@ ID	-0232+14042	Asia/Jayapura	Irian Jaya & the Moluccas
 IE	+5320-00615	Europe/Dublin
 IL	+3146+03514	Asia/Jerusalem
 IM	+5409-00428	Europe/Isle_of_Man
-IN	+2232+08822	Asia/Calcutta
+IN	+2232+08822	Asia/Kolkata
 IO	-0720+07225	Indian/Chagos
 IQ	+3321+04425	Asia/Baghdad
 IR	+3540+05126	Asia/Tehran
@@ -250,6 +252,7 @@ MA	+3339-00735	Africa/Casablanca
 MC	+4342+00723	Europe/Monaco
 MD	+4700+02850	Europe/Chisinau
 ME	+4226+01916	Europe/Podgorica
+MF	+1804-06305	America/Marigot
 MG	-1855+04731	Indian/Antananarivo
 MH	+0709+17112	Pacific/Majuro	most locations
 MH	+0905+16720	Pacific/Kwajalein	Kwajalein
@@ -339,8 +342,7 @@ SE	+5920+01803	Europe/Stockholm
 SG	+0117+10351	Asia/Singapore
 SH	-1555-00542	Atlantic/St_Helena
 SI	+4603+01431	Europe/Ljubljana
-SJ	+7800+01600	Arctic/Longyearbyen	Svalbard
-SJ	+7059-00805	Atlantic/Jan_Mayen	Jan Mayen
+SJ	+7800+01600	Arctic/Longyearbyen
 SK	+4809+01707	Europe/Bratislava
 SL	+0830-01315	Africa/Freetown
 SM	+4355+01228	Europe/San_Marino
@@ -410,7 +412,7 @@ VC	+1309-06114	America/St_Vincent
 VE	+1030-06656	America/Caracas
 VG	+1827-06437	America/Tortola
 VI	+1821-06456	America/St_Thomas
-VN	+1045+10640	Asia/Saigon
+VN	+1045+10640	Asia/Ho_Chi_Minh
 VU	-1740+16825	Pacific/Efate
 WF	-1318-17610	Pacific/Wallis
 WS	-1350-17144	Pacific/Apia
diff --git a/libc/version.h b/libc/version.h
index 9ac2ee7ad..97aa661e6 100644
--- a/libc/version.h
+++ b/libc/version.h
@@ -1,4 +1,4 @@
 /* This file just defines the current version number of libc.  */
 
-#define RELEASE "development"
-#define VERSION "2.7.90"
+#define RELEASE "stable"
+#define VERSION "2.8"
diff --git a/libc/wcsmbs/wcsmbsload.c b/libc/wcsmbs/wcsmbsload.c
index 6531775ce..6061e4200 100644
--- a/libc/wcsmbs/wcsmbsload.c
+++ b/libc/wcsmbs/wcsmbsload.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998-2002,2004,2005 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2002,2004,2005,2008 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
@@ -147,7 +147,7 @@ __wcsmbs_getfct (const char *to, const char *from, size_t *nstepsp)
 
 #if __OPTION_EGLIBC_LOCALE_CODE
 /* Some of the functions here must not be used while setlocale is called.  */
-__libc_lock_define (extern, __libc_setlocale_lock attribute_hidden)
+__libc_rwlock_define (extern, __libc_setlocale_lock attribute_hidden)
 
 /* Load conversion functions for the currently selected locale.  */
 void
@@ -155,7 +155,7 @@ internal_function
 __wcsmbs_load_conv (struct locale_data *new_category)
 {
   /* Acquire the lock.  */
-  __libc_lock_lock (__libc_setlocale_lock);
+  __libc_rwlock_wrlock (__libc_setlocale_lock);
 
   /* We should repeat the test since while we waited some other thread
      might have run this function.  */
@@ -213,7 +213,7 @@ __wcsmbs_load_conv (struct locale_data *new_category)
 	}
     }
 
-  __libc_lock_unlock (__libc_setlocale_lock);
+  __libc_rwlock_unlock (__libc_setlocale_lock);
 }
 #else
 void