Update.

8 files changed, 255 insertions, 74 deletions

diff --git a/lgl/Makefile.am b/lgl/Makefile.am
index 12eac7eaa3..02666fe0a5 100644
--- a/lgl/Makefile.am
+++ b/lgl/Makefile.am
@@ -379,10 +379,35 @@ EXTRA_DIST += stat_.h
 
 ## end   gnulib module sys_stat
 
+## begin gnulib module time
+
+BUILT_SOURCES += time.h
+
+# We need the following in order to create <time.h> when the system
+# doesn't have one that works with the given compiler.
+time.h: time_.h
+	rm -f $@-t $@
+	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
+	  sed -e 's|@ABSOLUTE_TIME_H''@|$(ABSOLUTE_TIME_H)|g' \
+ 	      -e 's|@REPLACE_LOCALTIME_R''@|$(REPLACE_LOCALTIME_R)|g' \
+ 	      -e 's|@REPLACE_NANOSLEEP''@|$(REPLACE_NANOSLEEP)|g' \
+ 	      -e 's|@REPLACE_STRPTIME''@|$(REPLACE_STRPTIME)|g' \
+ 	      -e 's|@REPLACE_TIMEGM''@|$(REPLACE_TIMEGM)|g' \
+ 	      -e 's|@SYS_TIME_H_DEFINES_STRUCT_TIMESPEC''@|$(SYS_TIME_H_DEFINES_STRUCT_TIMESPEC)|g' \
+ 	      -e 's|@TIME_H_DEFINES_STRUCT_TIMESPEC''@|$(TIME_H_DEFINES_STRUCT_TIMESPEC)|g' \
+	      < $(srcdir)/time_.h; \
+	} > $@-t
+	mv $@-t $@
+MOSTLYCLEANFILES += time.h time.h-t
+
+EXTRA_DIST += time_.h
+
+## end   gnulib module time
+
 ## begin gnulib module time_r
 
 
-EXTRA_DIST += time_r.c time_r.h
+EXTRA_DIST += time_r.c
 
 EXTRA_liblgnu_la_SOURCES += time_r.c
 
diff --git a/lgl/m4/gnulib-comp.m4 b/lgl/m4/gnulib-comp.m4
index 63f05212f3..d1026270c1 100644
--- a/lgl/m4/gnulib-comp.m4
+++ b/lgl/m4/gnulib-comp.m4
@@ -86,6 +86,7 @@ AC_DEFUN([lgl_INIT],
   AC_PROG_MKDIR_P
   gl_HEADER_SYS_STAT_H
   AC_PROG_MKDIR_P
+  gl_HEADER_TIME_H
   gl_TIME_R
   gl_HEADER_UNISTD
   gl_FUNC_VASNPRINTF
@@ -180,8 +181,8 @@ AC_DEFUN([lgl_FILE_LIST], [
   lib/string_.h
   lib/strverscmp.c
   lib/strverscmp.h
+  lib/time_.h
   lib/time_r.c
-  lib/time_r.h
   lib/unistd_.h
   lib/vasnprintf.c
   lib/vasnprintf.h
@@ -255,6 +256,7 @@ AC_DEFUN([lgl_FILE_LIST], [
   m4/strverscmp.m4
   m4/sys_socket_h.m4
   m4/sys_stat_h.m4
+  m4/time_h.m4
   m4/time_r.m4
   m4/uintmax_t.m4
   m4/ulonglong.m4
diff --git a/lgl/m4/time_h.m4 b/lgl/m4/time_h.m4
new file mode 100644
index 0000000000..e90ed7ac37
--- /dev/null
+++ b/lgl/m4/time_h.m4
@@ -0,0 +1,76 @@
+# Configure a more-standard replacement for <time.h>.
+
+# Copyright (C) 2000, 2001, 2003, 2004, 2005, 2006, 2007 Free Software
+# Foundation, Inc.
+
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# Written by Paul Eggert and Jim Meyering.
+
+AC_DEFUN([gl_HEADER_TIME_H],
+[
+  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
+  dnl once only, before all statements that occur in other macros.
+  AC_REQUIRE([gl_HEADER_TIME_H_BODY])
+])
+
+AC_DEFUN([gl_HEADER_TIME_H_BODY],
+[
+  AC_REQUIRE([AC_C_RESTRICT])
+  AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
+  gl_ABSOLUTE_HEADER([time.h])
+  ABSOLUTE_TIME_H=\"$gl_cv_absolute_time_h\"
+  AC_SUBST([ABSOLUTE_TIME_H])
+  AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC])
+])
+
+AC_DEFUN([gl_HEADER_TIME_H_DEFAULTS],
+[
+  dnl If another module says to replace or to not replace, do that.
+  dnl Otherwise, replace only if someone compiles with -DGNULIB_PORTCHECK;
+  dnl this lets maintainers check for portability.
+  REPLACE_LOCALTIME_R=GNULIB_PORTCHECK;  AC_SUBST([REPLACE_LOCALTIME_R])
+  REPLACE_NANOSLEEP=GNULIB_PORTCHECK;    AC_SUBST([REPLACE_NANOSLEEP])
+  REPLACE_STRPTIME=GNULIB_PORTCHECK;     AC_SUBST([REPLACE_STRPTIME])
+  REPLACE_TIMEGM=GNULIB_PORTCHECK;       AC_SUBST([REPLACE_TIMEGM])
+])
+
+dnl Define HAVE_STRUCT_TIMESPEC if `struct timespec' is declared
+dnl in time.h or sys/time.h.
+
+AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC],
+[
+  AC_CHECK_HEADERS_ONCE([sys/time.h])
+  AC_CACHE_CHECK([for struct timespec in <time.h>],
+    [gl_cv_sys_struct_timespec_in_time_h],
+    [AC_COMPILE_IFELSE(
+       [AC_LANG_PROGRAM(
+	  [[#include <time.h>
+	  ]],
+	  [[static struct timespec x; x.tv_sec = x.tv_nsec;]])],
+       [gl_cv_sys_struct_timespec_in_time_h=yes],
+       [gl_cv_sys_struct_timespec_in_time_h=no])])
+
+  TIME_H_DEFINES_STRUCT_TIMESPEC=0
+  SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=0
+  if test $gl_cv_sys_struct_timespec_in_time_h = yes; then
+    TIME_H_DEFINES_STRUCT_TIMESPEC=1
+  else
+    AC_CACHE_CHECK([for struct timespec in <sys/time.h>],
+      [gl_cv_sys_struct_timespec_in_sys_time_h],
+      [AC_COMPILE_IFELSE(
+	 [AC_LANG_PROGRAM(
+	    [[#include <sys/time.h>
+	    ]],
+	    [[static struct timespec x; x.tv_sec = x.tv_nsec;]])],
+	 [gl_cv_sys_struct_timespec_in_sys_time_h=yes],
+	 [gl_cv_sys_struct_timespec_in_sys_time_h=no])])
+    if test $gl_cv_sys_struct_timespec_in_time_h = yes; then
+      SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=1
+    fi
+  fi
+  AC_SUBST([TIME_H_DEFINES_STRUCT_TIMESPEC])
+  AC_SUBST([SYS_TIME_H_DEFINES_STRUCT_TIMESPEC])
+])
diff --git a/lgl/m4/time_r.m4 b/lgl/m4/time_r.m4
index ac8353a569..a4e016f819 100644
--- a/lgl/m4/time_r.m4
+++ b/lgl/m4/time_r.m4
@@ -1,6 +1,6 @@
 dnl Reentrant time functions like localtime_r.
 
-dnl Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+dnl Copyright (C) 2003, 2006, 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -24,10 +24,9 @@ AC_DEFUN([gl_TIME_R],
        [gl_cv_time_r_posix=yes],
        [gl_cv_time_r_posix=no])])
   if test $gl_cv_time_r_posix = yes; then
-    AC_DEFINE([HAVE_TIME_R_POSIX], 1,
-      [Define to 1 if localtime_r, etc. have the type signatures that
-       POSIX requires.])
+    REPLACE_LOCALTIME_R=0
   else
+    REPLACE_LOCALTIME_R=1
     AC_LIBOBJ([time_r])
     gl_PREREQ_TIME_R
   fi
diff --git a/lgl/string_.h b/lgl/string_.h
index 233a2bfea1..69c8bf5ac8 100644
--- a/lgl/string_.h
+++ b/lgl/string_.h
@@ -64,7 +64,9 @@ extern void *memmem (void const *__haystack, size_t __haystack_len,
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef memmem
-# define memmem memmem_is_unportable__use_gnulib_module_memmem_for_portability
+# define memmem(a,al,b,bl) \
+    (GL_LINK_WARNING ("memmem is unportable - use gnulib module memmem for portability"), \
+     memmem (a, al, b, bl))
 #endif
 
 /* Copy N bytes of SRC to DEST, return pointer to bytes after the
@@ -76,7 +78,9 @@ extern void *mempcpy (void *restrict __dest, void const *restrict __src,
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef mempcpy
-# define mempcpy mempcpy_is_unportable__use_gnulib_module_mempcpy_for_portability
+# define mempcpy(a,b,n) \
+    (GL_LINK_WARNING ("mempcpy is unportable - use gnulib module mempcpy for portability"), \
+     mempcpy (a, b, n))
 #endif
 
 /* Search backwards through a block for a byte (specified as an int).  */
@@ -86,7 +90,9 @@ extern void *memrchr (void const *, int, size_t);
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef memrchr
-# define memrchr memrchr_is_unportable__use_gnulib_module_memrchr_for_portability
+# define memrchr(a,b,c) \
+    (GL_LINK_WARNING ("memrchr is unportable - use gnulib module memrchr for portability"), \
+     memrchr (a, b, c))
 #endif
 
 /* Copy SRC to DST, returning the address of the terminating '\0' in DST.  */
@@ -96,7 +102,9 @@ extern char *stpcpy (char *restrict __dst, char const *restrict __src);
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef stpcpy
-# define stpcpy stpcpy_is_unportable__use_gnulib_module_stpcpy_for_portability
+# define stpcpy(a,b) \
+    (GL_LINK_WARNING ("stpcpy is unportable - use gnulib module stpcpy for portability"), \
+     stpcpy (a, b))
 #endif
 
 /* Copy no more than N bytes of SRC to DST, returning a pointer past the
@@ -109,7 +117,9 @@ extern char *stpncpy (char *restrict __dst, char const *restrict __src,
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef stpncpy
-# define stpncpy stpncpy_is_unportable__use_gnulib_module_stpncpy_for_portability
+# define stpncpy(a,b,n) \
+    (GL_LINK_WARNING ("stpncpy is unportable - use gnulib module stpncpy for portability"), \
+     stpncpy (a, b, n))
 #endif
 
 /* Compare strings S1 and S2, ignoring case, returning less than, equal to or
@@ -141,9 +151,9 @@ extern int strncasecmp (char const *s1, char const *s2, size_t n);
    POSIX says that it operates on "strings", and "string" in POSIX is defined
    as a sequence of bytes, not of characters.  */
 # undef strncasecmp
-# define strncasecmp(a,b) \
+# define strncasecmp(a,b,n) \
     (GL_LINK_WARNING ("strncasecmp cannot work correctly on character strings in multibyte locales - don't use it if you care about internationalization; use c_strncasecmp (from gnulib module c-strcase) if you want a locale independent function"), \
-     strncasecmp (a, b))
+     strncasecmp (a, b, n))
 #endif
 
 #if defined GNULIB_POSIXCHECK
@@ -162,7 +172,9 @@ extern char *strchrnul (char const *__s, int __c_in);
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef strchrnul
-# define strchrnul strchrnul_is_unportable__use_gnulib_module_strchrnul_for_portability
+# define strchrnul(a,b) \
+    (GL_LINK_WARNING ("strchrnul is unportable - use gnulib module strchrnul for portability"), \
+     strchrnul (a, b))
 #endif
 
 /* Duplicate S, returning an identical malloc'd string.  */
@@ -172,7 +184,9 @@ extern char *strdup (char const *__s);
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef strdup
-# define strdup strdup_is_unportable__use_gnulib_module_strdup_for_portability
+# define strdup(a) \
+    (GL_LINK_WARNING ("strdup is unportable - use gnulib module strdup for portability"), \
+     strdup (a))
 #endif
 
 /* Return a newly allocated copy of at most N bytes of STRING.  */
@@ -186,7 +200,9 @@ extern char *strndup (char const *__string, size_t __n);
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef strndup
-# define strndup strndup_is_unportable__use_gnulib_module_strndup_for_portability
+# define strndup(a,n) \
+    (GL_LINK_WARNING ("strndup is unportable - use gnulib module strndup for portability"), \
+     strndup (a, n))
 #endif
 
 /* Find the length (number of bytes) of STRING, but scan at most
@@ -198,7 +214,9 @@ extern size_t strnlen (char const *__string, size_t __maxlen);
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef strnlen
-# define strnlen strnlen_is_unportable__use_gnulib_module_strnlen_for_portability
+# define strnlen(a,n) \
+    (GL_LINK_WARNING ("strnlen is unportable - use gnulib module strnlen for portability"), \
+     strnlen (a, n))
 #endif
 
 #if defined GNULIB_POSIXCHECK
@@ -229,7 +247,9 @@ extern char *strpbrk (char const *__s, char const *__accept);
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef strpbrk
-# define strpbrk strpbrk_is_unportable__use_gnulib_module_strpbrk_for_portability
+# define strpbrk(s,a) \
+    (GL_LINK_WARNING ("strpbrk is unportable - use gnulib module strpbrk for portability"), \
+     strpbrk (s, a))
 #endif
 
 #if defined GNULIB_POSIXCHECK
@@ -278,7 +298,9 @@ extern char *strsep (char **restrict __stringp, char const *restrict __delim);
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef strsep
-# define strsep strsep_is_unportable__use_gnulib_module_strsep_for_portability
+# define strsep(s,d) \
+    (GL_LINK_WARNING ("strsep is unportable - use gnulib module strsep for portability"), \
+     strsep (s, d))
 #endif
 
 #if defined GNULIB_POSIXCHECK
@@ -342,7 +364,9 @@ extern char *strtok_r (char *restrict s, char const *restrict delim,
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef strtok_r
-# define strtok_r strtok_r_is_unportable__use_gnulib_module_strtok_r_for_portability
+# define strtok_r(s,d,p) \
+    (GL_LINK_WARNING ("strtok_r is unportable - use gnulib module strtok_r for portability"), \
+     strtok_r (s, d, p))
 #endif
 
 
diff --git a/lgl/time_.h b/lgl/time_.h
new file mode 100644
index 0000000000..b4709bf85f
--- /dev/null
+++ b/lgl/time_.h
@@ -0,0 +1,107 @@
+/* A more-standard <time.h>.
+
+   Copyright (C) 2007 Free Software Foundation, Inc.
+
+   This program 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, or (at your option)
+   any later version.
+
+   This program 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 this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Don't get in the way of glibc when it includes time.h merely to
+   declare a few standard symbols, rather than to declare all the
+   symbols.  */
+#if defined __need_time_t || defined __need_clock_t || defined __need_timespec
+# include @ABSOLUTE_TIME_H@
+
+#elif ! defined _GL_TIME_H
+# define _GL_TIME_H
+# include @ABSOLUTE_TIME_H@
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+/* Some systems don't define struct timespec (e.g., AIX 4.1, Ultrix 4.3).
+   Or they define it with the wrong member names or define it in <sys/time.h>
+   (e.g., FreeBSD circa 1997).  */
+# if ! @TIME_H_DEFINES_STRUCT_TIMESPEC@
+#  if @SYS_TIME_H_DEFINES_STRUCT_TIMESPEC@
+#   include <sys/time.h>
+#  else
+#   undef timespec
+#   define timespec rpl_timespec
+struct timespec
+{
+  time_t tv_sec;
+  long int tv_nsec;
+};
+#  endif
+# endif
+
+/* Sleep for at least RQTP seconds unless interrupted,  If interrupted,
+   return -1 and store the remaining time into RMTP.  See
+   <http://www.opengroup.org/susv3xsh/nanosleep.html>.  */
+# if @REPLACE_NANOSLEEP@
+#  define nanosleep rpl_nanosleep
+int nanosleep (struct timespec const *__rqtp, struct timespec *__rmtp);
+# endif
+
+/* Convert TIMER to RESULT, assuming local time and UTC respectively.  See
+   <http://www.opengroup.org/susv3xsh/localtime_r.html> and
+   <http://www.opengroup.org/susv3xsh/gmtime_r.html>.  */
+# if @REPLACE_LOCALTIME_R@
+#  undef localtime_r
+#  define localtime_r rpl_localtime_r
+#  undef gmtime_r
+#  define gmtime_r rpl_gmtime_r
+struct tm *localtime_r (time_t const *restrict __timer,
+			struct tm *restrict __result);
+struct tm *gmtime_r (time_t const *restrict __timer,
+		     struct tm *restrict __result);
+# endif
+
+/* Parse BUF as a time stamp, assuming FORMAT specifies its layout, and store
+   the resulting broken-down time into TM.  See
+   <http://www.opengroup.org/susv3xsh/strptime.html>.  */
+# if @REPLACE_STRPTIME@
+#  undef strptime
+#  define strptime rpl_strptime
+char *strptime (char const *restrict __buf, char const *restrict __format,
+		struct tm *restrict __tm);
+# endif
+
+/* Convert TM to a time_t value, assuming UTC.  */
+# if @REPLACE_TIMEGM@
+#  undef timegm
+#  define timegm rpl_timegm
+time_t timegm (struct tm *__tm);
+#endif
+
+/* Encourage applications to avoid unsafe functions that can overrrun
+   buffers when given outlandish struct tm values.  Portable
+   applications should use strftime (or even sprintf) instead.  */
+# if GNULIB_PORTCHECK
+#  undef asctime
+#  define asctime eschew_asctime
+#  undef asctime_r
+#  define asctime_r eschew_asctime_r
+#  undef ctime
+#  define ctime eschew_ctime
+#  undef ctime_r
+#  define ctime_r eschew_ctime_r
+# endif
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif
diff --git a/lgl/time_r.c b/lgl/time_r.c
index b1469b0cac..7317195e30 100644
--- a/lgl/time_r.c
+++ b/lgl/time_r.c
@@ -1,6 +1,6 @@
 /* Reentrant time functions like localtime_r.
 
-   Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2006, 2007 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
@@ -20,7 +20,7 @@
 
 #include <config.h>
 
-#include "time_r.h"
+#include <time.h>
 
 #include <string.h>
 
diff --git a/lgl/time_r.h b/lgl/time_r.h
deleted file mode 100644
index 8f91947ab4..0000000000
--- a/lgl/time_r.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/* Reentrant time functions like localtime_r.
-
-   Copyright (C) 2003, 2005, 2006 Free Software Foundation, Inc.
-
-   This program 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, or (at your option)
-   any later version.
-
-   This program 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 this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-/* Written by Paul Eggert.  */
-
-#ifndef _TIME_R_H
-#define _TIME_R_H
-
-/* Include <time.h> first, since it may declare these functions with
-   signatures that disagree with POSIX, and we don't want to rename
-   those declarations.  */
-#include <time.h>
-
-#if !HAVE_TIME_R_POSIX
-
-/* Don't bother with asctime_r and ctime_r, since these functions are
-   not safe (like asctime and ctime, they can overrun their 26-byte
-   output buffers when given outlandish struct tm values), and we
-   don't want to encourage applications to use unsafe functions.  Use
-   strftime or even sprintf instead.  */
-
-# undef gmtime_r
-# undef localtime_r
-
-# define gmtime_r rpl_gmtime_r
-# define localtime_r rpl_localtime_r
-
-/* See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/gmtime.html>.  */
-struct tm *gmtime_r (time_t const * restrict, struct tm * restrict);
-
-/* See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/localtime.html>.  */
-struct tm *localtime_r (time_t const * restrict, struct tm * restrict);
-#endif
-
-#endif