Add Gnulib `strftime' module, update Gnulib files.

* m4/gnulib-cache.m4 (gl_MODULES): Add `strftime'.

lib/Makefile.am

@@ -9,7 +9,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --aux-dir=build-aux --lgpl --libtool --macro-prefix=gl alloca extensions strcase
+# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --aux-dir=build-aux --lgpl --libtool --macro-prefix=gl alloca extensions strcase strftime
 
 AUTOMAKE_OPTIONS = 1.5 gnits
 
@@ -71,6 +71,24 @@ EXTRA_DIST += $(top_srcdir)/build-aux/link-warning.h
 
 ## end   gnulib module link-warning
 
+## begin gnulib module stdbool
+
+BUILT_SOURCES += $(STDBOOL_H)
+
+# We need the following in order to create <stdbool.h> when the system
+# doesn't have one that works.
+stdbool.h: stdbool.in.h
+	rm -f $@-t $@
+	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
+	  sed -e 's/@''HAVE__BOOL''@/$(HAVE__BOOL)/g' < $(srcdir)/stdbool.in.h; \
+	} > $@-t
+	mv $@-t $@
+MOSTLYCLEANFILES += stdbool.h stdbool.h-t
+
+EXTRA_DIST += stdbool.in.h
+
+## end   gnulib module stdbool
+
 ## begin gnulib module strcase
 
 
@@ -80,6 +98,15 @@ EXTRA_libgnu_la_SOURCES += strcasecmp.c strncasecmp.c
 
 ## end   gnulib module strcase
 
+## begin gnulib module strftime
+
+
+EXTRA_DIST += strftime.c strftime.h
+
+EXTRA_libgnu_la_SOURCES += strftime.c
+
+## end   gnulib module strftime
+
 ## begin gnulib module strings
 
 BUILT_SOURCES += strings.h
@@ -89,7 +116,8 @@ BUILT_SOURCES += strings.h
 strings.h: strings.in.h
 	rm -f $@-t $@
 	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
-	  sed -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+	  sed -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
+	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
 	      -e 's|@''NEXT_STRINGS_H''@|$(NEXT_STRINGS_H)|g' \
 	      -e 's|@''HAVE_STRCASECMP''@|$(HAVE_STRCASECMP)|g' \
 	      -e 's|@''HAVE_DECL_STRNCASECMP''@|$(HAVE_DECL_STRNCASECMP)|g' \
@@ -103,6 +131,68 @@ EXTRA_DIST += strings.in.h
 
 ## end   gnulib module strings
 
+## 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.in.h
+	rm -f $@-t $@
+	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
+	  sed -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
+	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
+	      -e 's|@NEXT_TIME_H''@|$(NEXT_TIME_H)|g' \
+	      -e 's|@REPLACE_LOCALTIME_R''@|$(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.in.h; \
+	} > $@-t
+	mv $@-t $@
+MOSTLYCLEANFILES += time.h time.h-t
+
+EXTRA_DIST += time.in.h
+
+## end   gnulib module time
+
+## begin gnulib module time_r
+
+
+EXTRA_DIST += time_r.c
+
+EXTRA_libgnu_la_SOURCES += time_r.c
+
+## end   gnulib module time_r
+
+## begin gnulib module wchar
+
+BUILT_SOURCES += $(WCHAR_H)
+
+# We need the following in order to create <wchar.h> when the system
+# version does not work standalone.
+wchar.h: wchar.in.h
+	rm -f $@-t $@
+	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
+	  sed -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
+	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
+	      -e 's|@''NEXT_WCHAR_H''@|$(NEXT_WCHAR_H)|g' \
+	      -e 's/@''HAVE_WCHAR_H''@/$(HAVE_WCHAR_H)/g' \
+	      -e 's|@''GNULIB_WCWIDTH''@|$(GNULIB_WCWIDTH)|g' \
+	      -e 's|@''HAVE_DECL_WCWIDTH''@|$(HAVE_DECL_WCWIDTH)|g' \
+	      -e 's|@''REPLACE_WCWIDTH''@|$(REPLACE_WCWIDTH)|g' \
+	      -e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
+	    < $(srcdir)/wchar.in.h; \
+	} > $@-t
+	mv $@-t $@
+MOSTLYCLEANFILES += wchar.h wchar.h-t
+
+EXTRA_DIST += wchar.in.h
+
+## end   gnulib module wchar
+
 ## begin gnulib module dummy
 
 libgnu_la_SOURCES += dummy.c

lib/stdbool.in.h

@@ -0,0 +1,119 @@
+/* Copyright (C) 2001-2003, 2006-2008 Free Software Foundation, Inc.
+   Written by Bruno Haible <haible@clisp.cons.org>, 2001.
+
+   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, 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.  */
+
+#ifndef _GL_STDBOOL_H
+#define _GL_STDBOOL_H
+
+/* ISO C 99 <stdbool.h> for platforms that lack it.  */
+
+/* Usage suggestions:
+
+   Programs that use <stdbool.h> should be aware of some limitations
+   and standards compliance issues.
+
+   Standards compliance:
+
+       - <stdbool.h> must be #included before 'bool', 'false', 'true'
+         can be used.
+
+       - You cannot assume that sizeof (bool) == 1.
+
+       - Programs should not undefine the macros bool, true, and false,
+         as C99 lists that as an "obsolescent feature".
+
+   Limitations of this substitute, when used in a C89 environment:
+
+       - <stdbool.h> must be #included before the '_Bool' type can be used.
+
+       - You cannot assume that _Bool is a typedef; it might be a macro.
+
+       - Bit-fields of type 'bool' are not supported.  Portable code
+         should use 'unsigned int foo : 1;' rather than 'bool foo : 1;'.
+
+       - In C99, casts and automatic conversions to '_Bool' or 'bool' are
+         performed in such a way that every nonzero value gets converted
+         to 'true', and zero gets converted to 'false'.  This doesn't work
+         with this substitute.  With this substitute, only the values 0 and 1
+         give the expected result when converted to _Bool' or 'bool'.
+
+   Also, it is suggested that programs use 'bool' rather than '_Bool';
+   this isn't required, but 'bool' is more common.  */
+
+
+/* 7.16. Boolean type and values */
+
+/* BeOS <sys/socket.h> already #defines false 0, true 1.  We use the same
+   definitions below, but temporarily we have to #undef them.  */
+#if defined __BEOS__ && !defined __HAIKU__
+# include <OS.h> /* defines bool but not _Bool */
+# undef false
+# undef true
+#endif
+
+/* For the sake of symbolic names in gdb, we define true and false as
+   enum constants, not only as macros.
+   It is tempting to write
+      typedef enum { false = 0, true = 1 } _Bool;
+   so that gdb prints values of type 'bool' symbolically. But if we do
+   this, values of type '_Bool' may promote to 'int' or 'unsigned int'
+   (see ISO C 99 6.7.2.2.(4)); however, '_Bool' must promote to 'int'
+   (see ISO C 99 6.3.1.1.(2)).  So we add a negative value to the
+   enum; this ensures that '_Bool' promotes to 'int'.  */
+#if defined __cplusplus || (defined __BEOS__ && !defined __HAIKU__)
+  /* A compiler known to have 'bool'.  */
+  /* If the compiler already has both 'bool' and '_Bool', we can assume they
+     are the same types.  */
+# if !@HAVE__BOOL@
+typedef bool _Bool;
+# endif
+#else
+# if !defined __GNUC__
+   /* If @HAVE__BOOL@:
+        Some HP-UX cc and AIX IBM C compiler versions have compiler bugs when
+        the built-in _Bool type is used.  See
+          http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+          http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+          http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
+        Similar bugs are likely with other compilers as well; this file
+        wouldn't be used if <stdbool.h> was working.
+        So we override the _Bool type.
+      If !@HAVE__BOOL@:
+        Need to define _Bool ourselves. As 'signed char' or as an enum type?
+        Use of a typedef, with SunPRO C, leads to a stupid
+          "warning: _Bool is a keyword in ISO C99".
+        Use of an enum type, with IRIX cc, leads to a stupid
+          "warning(1185): enumerated type mixed with another type".
+        Even the existence of an enum type, without a typedef,
+          "Invalid enumerator. (badenum)" with HP-UX cc on Tru64.
+        The only benefit of the enum, debuggability, is not important
+        with these compilers.  So use 'signed char' and no enum.  */
+#  define _Bool signed char
+# else
+   /* With this compiler, trust the _Bool type if the compiler has it.  */
+#  if !@HAVE__BOOL@
+typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool;
+#  endif
+# endif
+#endif
+#define bool _Bool
+
+/* The other macros must be usable in preprocessor directives.  */
+#define false 0
+#define true 1
+#define __bool_true_false_are_defined 1
+
+#endif /* _GL_STDBOOL_H */

lib/strftime.h

@@ -0,0 +1,26 @@
+/* declarations for strftime.c
+
+   Copyright (C) 2002, 2004, 2008 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 3 of the License, 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, see <http://www.gnu.org/licenses/>.  */
+
+#include <time.h>
+
+/* Just like strftime, but with two more arguments:
+   POSIX requires that strftime use the local timezone information.
+   When __UTC is nonzero and tm->tm_zone is NULL or the empty string,
+   use UTC instead.  Use __NS as the number of nanoseconds in the
+   %N directive.  */
+size_t nstrftime (char *, size_t, char const *, struct tm const *,
+		  int __utc, int __ns);

lib/strings.in.h

@@ -1,6 +1,6 @@
 /* A substitute <strings.h>.
 
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007-2008 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
@@ -18,6 +18,8 @@
 
 #ifndef _GL_STRINGS_H
 
+@PRAGMA_SYSTEM_HEADER@
+
 /* The include_next requires a split double-inclusion guard.  */
 #@INCLUDE_NEXT@ @NEXT_STRINGS_H@
 

lib/time.in.h

@@ -0,0 +1,116 @@
+/* A more-standard <time.h>.
+
+   Copyright (C) 2007-2008 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, 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.  */
+
+@PRAGMA_SYSTEM_HEADER@
+
+/* 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.  Also, Solaris 8 <time.h> eventually includes itself
+   recursively; if that is happening, just include the system <time.h>
+   without adding our own declarations.  */
+#if (defined __need_time_t || defined __need_clock_t \
+     || defined __need_timespec \
+     || defined _GL_TIME_H)
+
+# @INCLUDE_NEXT@ @NEXT_TIME_H@
+
+#else
+
+# define _GL_TIME_H
+
+# @INCLUDE_NEXT@ @NEXT_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 overrun
+   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

lib/time_r.c

@@ -0,0 +1,47 @@
+/* Reentrant time functions like localtime_r.
+
+   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
+   the Free Software Foundation; either version 2, 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.  */
+
+#include <config.h>
+
+#include <time.h>
+
+#include <string.h>
+
+static struct tm *
+copy_tm_result (struct tm *dest, struct tm const *src)
+{
+  if (! src)
+    return 0;
+  *dest = *src;
+  return dest;
+}
+
+
+struct tm *
+gmtime_r (time_t const * restrict t, struct tm * restrict tp)
+{
+  return copy_tm_result (tp, gmtime (t));
+}
+
+struct tm *
+localtime_r (time_t const * restrict t, struct tm * restrict tp)
+{
+  return copy_tm_result (tp, localtime (t));
+}

lib/wchar.in.h

@@ -0,0 +1,93 @@
+/* A substitute for ISO C99 <wchar.h>, for platforms that have issues.
+
+   Copyright (C) 2007-2008 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, 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 Eric Blake.  */
+
+/*
+ * ISO C 99 <wchar.h> for platforms that have issues.
+ * <http://www.opengroup.org/susv3xbd/wchar.h.html>
+ *
+ * For now, this just ensures proper prerequisite inclusion order and
+ * the declaration of wcwidth().
+ */
+
+@PRAGMA_SYSTEM_HEADER@
+
+#ifdef __need_mbstate_t
+/* Special invocation convention inside uClibc header files.  */
+
+#@INCLUDE_NEXT@ @NEXT_WCHAR_H@
+
+#else
+/* Normal invocation convention.  */
+
+#ifndef _GL_WCHAR_H
+
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+   <wchar.h>.
+   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+   included before <wchar.h>.  */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
+
+/* Include the original <wchar.h> if it exists.
+   Some builds of uClibc lack it.  */
+/* The include_next requires a split double-inclusion guard.  */
+#if @HAVE_WCHAR_H@
+# @INCLUDE_NEXT@ @NEXT_WCHAR_H@
+#endif
+
+#ifndef _GL_WCHAR_H
+#define _GL_WCHAR_H
+
+/* The definition of GL_LINK_WARNING is copied here.  */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Return the number of screen columns needed for WC.  */
+#if @GNULIB_WCWIDTH@
+# if @REPLACE_WCWIDTH@
+#  undef wcwidth
+#  define wcwidth rpl_wcwidth
+extern int wcwidth (wchar_t);
+# else
+#  if !defined wcwidth && !@HAVE_DECL_WCWIDTH@
+/* wcwidth exists but is not declared.  */
+extern int wcwidth (int /* actually wchar_t */);
+#  endif
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef wcwidth
+# define wcwidth(w) \
+    (GL_LINK_WARNING ("wcwidth is unportable - " \
+                      "use gnulib module wcwidth for portability"), \
+     wcwidth (w))
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GL_WCHAR_H */
+#endif /* _GL_WCHAR_H */
+#endif

m4/.cvsignore

@@ -11,3 +11,10 @@ strcase.m4
 string_h.m4
 strings_h.m4
 onceonly.m4
+mbstate_t.m4
+stdbool.m4
+strftime.m4
+time_h.m4
+time_r.m4
+tm_gmtoff.m4
+wchar.m4

m4/gnulib-cache.m4

@@ -15,7 +15,7 @@
 
 
 # Specification in the form of a command-line invocation:
-#   gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --aux-dir=build-aux --lgpl --libtool --macro-prefix=gl alloca extensions strcase
+#   gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --aux-dir=build-aux --lgpl --libtool --macro-prefix=gl alloca extensions strcase strftime
 
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([])
@@ -23,6 +23,7 @@ gl_MODULES([
   alloca
   extensions
   strcase
+  strftime
 ])
 gl_AVOID([])
 gl_SOURCE_BASE([lib])

m4/gnulib-comp.m4

@@ -46,8 +46,13 @@ LTALLOCA=`echo "$ALLOCA" | sed 's/\.[^.]* /.lo /g;s/\.[^.]*$/.lo/'`
 changequote([, ])dnl
 AC_SUBST([LTALLOCA])
   gl_FUNC_ALLOCA
+  AM_STDBOOL_H
   gl_STRCASE
+  gl_FUNC_GNU_STRFTIME
   gl_HEADER_STRINGS_H
+  gl_HEADER_TIME_H
+  gl_TIME_R
+  gl_WCHAR_H
   m4_ifval(gl_LIBSOURCES_LIST, [
     m4_syscmd([test ! -d ]m4_defn([gl_LIBSOURCES_DIR])[ ||
       for gl_file in ]gl_LIBSOURCES_LIST[ ; do
@@ -180,13 +185,26 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/alloca.c
   lib/alloca.in.h
   lib/dummy.c
+  lib/stdbool.in.h
   lib/strcasecmp.c
+  lib/strftime.c
+  lib/strftime.h
   lib/strings.in.h
   lib/strncasecmp.c
+  lib/time.in.h
+  lib/time_r.c
+  lib/wchar.in.h
   m4/alloca.m4
   m4/extensions.m4
   m4/gnulib-common.m4
   m4/include_next.m4
+  m4/mbstate_t.m4
+  m4/stdbool.m4
   m4/strcase.m4
+  m4/strftime.m4
   m4/strings_h.m4
+  m4/time_h.m4
+  m4/time_r.m4
+  m4/tm_gmtoff.m4
+  m4/wchar.m4
 ])

m4/include_next.m4

@@ -1,4 +1,4 @@
-# include_next.m4 serial 6
+# include_next.m4 serial 7
 dnl Copyright (C) 2006-2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -6,6 +6,21 @@ dnl with or without modifications, as long as this notice is preserved.
 
 dnl From Paul Eggert and Derek Price.
 
+dnl Sets INCLUDE_NEXT and PRAGMA_SYSTEM_HEADER.
+dnl
+dnl INCLUDE_NEXT expands to 'include_next' if the compiler supports it, or to
+dnl 'include' otherwise.
+dnl
+dnl PRAGMA_SYSTEM_HEADER can be used in files that contain #include_next,
+dnl so as to avoid GCC warnings when the gcc option -pedantic is used.
+dnl '#pragma GCC system_header' has the same effect as if the file was found
+dnl through the include search path specified with '-isystem' options (as
+dnl opposed to the search path specified with '-I' options). Namely, gcc
+dnl does not warn about some things, and on some systems (Solaris and Interix)
+dnl __STDC__ evaluates to 0 instead of to 1. The latter is an undesired side
+dnl effect; we are therefore careful to use 'defined __STDC__' or '1' instead
+dnl of plain '__STDC__'.
+
 AC_DEFUN([gl_INCLUDE_NEXT],
 [
   AC_LANG_PREPROC_REQUIRE()
@@ -36,18 +51,17 @@ EOF
      CPPFLAGS="$save_CPPFLAGS"
      rm -rf conftestd1 conftestd2
     ])
+  PRAGMA_SYSTEM_HEADER=
   if test $gl_cv_have_include_next = yes; then
-
-    dnl FIXME: Remove HAVE_INCLUDE_NEXT and update everything that uses it
-    dnl to use @INCLUDE_NEXT@ instead.
-    AC_DEFINE([HAVE_INCLUDE_NEXT], 1,
-	      [Define if your compiler supports the #include_next directive.])
-
     INCLUDE_NEXT=include_next
+    if test -n "$GCC"; then
+      PRAGMA_SYSTEM_HEADER='#pragma GCC system_header'
+    fi
   else
     INCLUDE_NEXT=include
   fi
   AC_SUBST([INCLUDE_NEXT])
+  AC_SUBST([PRAGMA_SYSTEM_HEADER])
 ])
 
 # gl_CHECK_NEXT_HEADERS(HEADER1 HEADER2 ...)

m4/mbstate_t.m4

@@ -0,0 +1,30 @@
+# mbstate_t.m4 serial 10
+dnl Copyright (C) 2000-2002, 2008 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.
+
+# From Paul Eggert.
+
+# BeOS 5 has <wchar.h> but does not define mbstate_t,
+# so you can't declare an object of that type.
+# Check for this incompatibility with Standard C.
+
+# AC_TYPE_MBSTATE_T
+# -----------------
+AC_DEFUN([AC_TYPE_MBSTATE_T],
+  [AC_CACHE_CHECK([for mbstate_t], ac_cv_type_mbstate_t,
+     [AC_COMPILE_IFELSE(
+	[AC_LANG_PROGRAM(
+	   [AC_INCLUDES_DEFAULT[
+#	    include <wchar.h>]],
+	   [[mbstate_t x; return sizeof x;]])],
+	[ac_cv_type_mbstate_t=yes],
+	[ac_cv_type_mbstate_t=no])])
+   if test $ac_cv_type_mbstate_t = yes; then
+     AC_DEFINE([HAVE_MBSTATE_T], 1,
+	       [Define to 1 if <wchar.h> declares mbstate_t.])
+   else
+     AC_DEFINE([mbstate_t], int,
+	       [Define to a type if <wchar.h> does not define.])
+   fi])

m4/stdbool.m4

@@ -0,0 +1,115 @@
+# Check for stdbool.h that conforms to C99.
+
+dnl Copyright (C) 2002-2006 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.
+
+# Prepare for substituting <stdbool.h> if it is not supported.
+
+AC_DEFUN([AM_STDBOOL_H],
+[
+  AC_REQUIRE([AC_HEADER_STDBOOL])
+
+  # Define two additional variables used in the Makefile substitution.
+
+  if test "$ac_cv_header_stdbool_h" = yes; then
+    STDBOOL_H=''
+  else
+    STDBOOL_H='stdbool.h'
+  fi
+  AC_SUBST([STDBOOL_H])
+
+  if test "$ac_cv_type__Bool" = yes; then
+    HAVE__BOOL=1
+  else
+    HAVE__BOOL=0
+  fi
+  AC_SUBST([HAVE__BOOL])
+])
+
+# AM_STDBOOL_H will be renamed to gl_STDBOOL_H in the future.
+AC_DEFUN([gl_STDBOOL_H], [AM_STDBOOL_H])
+
+# This macro is only needed in autoconf <= 2.59.  Newer versions of autoconf
+# have this macro built-in.
+
+AC_DEFUN([AC_HEADER_STDBOOL],
+  [AC_CACHE_CHECK([for stdbool.h that conforms to C99],
+     [ac_cv_header_stdbool_h],
+     [AC_TRY_COMPILE(
+	[
+	  #include <stdbool.h>
+	  #ifndef bool
+	   "error: bool is not defined"
+	  #endif
+	  #ifndef false
+	   "error: false is not defined"
+	  #endif
+	  #if false
+	   "error: false is not 0"
+	  #endif
+	  #ifndef true
+	   "error: true is not defined"
+	  #endif
+	  #if true != 1
+	   "error: true is not 1"
+	  #endif
+	  #ifndef __bool_true_false_are_defined
+	   "error: __bool_true_false_are_defined is not defined"
+	  #endif
+
+	  struct s { _Bool s: 1; _Bool t; } s;
+
+	  char a[true == 1 ? 1 : -1];
+	  char b[false == 0 ? 1 : -1];
+	  char c[__bool_true_false_are_defined == 1 ? 1 : -1];
+	  char d[(bool) 0.5 == true ? 1 : -1];
+	  bool e = &s;
+	  char f[(_Bool) 0.0 == false ? 1 : -1];
+	  char g[true];
+	  char h[sizeof (_Bool)];
+	  char i[sizeof s.t];
+	  enum { j = false, k = true, l = false * true, m = true * 256 };
+	  _Bool n[m];
+	  char o[sizeof n == m * sizeof n[0] ? 1 : -1];
+	  char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
+	  #if defined __xlc__ || defined __GNUC__
+	   /* Catch a bug in IBM AIX xlc compiler version 6.0.0.0
+	      reported by James Lemley on 2005-10-05; see
+	      http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
+	      This test is not quite right, since xlc is allowed to
+	      reject this program, as the initializer for xlcbug is
+	      not one of the forms that C requires support for.
+	      However, doing the test right would require a run-time
+	      test, and that would make cross-compilation harder.
+	      Let us hope that IBM fixes the xlc bug, and also adds
+	      support for this kind of constant expression.  In the
+	      meantime, this test will reject xlc, which is OK, since
+	      our stdbool.h substitute should suffice.  We also test
+	      this with GCC, where it should work, to detect more
+	      quickly whether someone messes up the test in the
+	      future.  */
+	   char digs[] = "0123456789";
+	   int xlcbug = 1 / (&(digs + 5)[-2 + (bool) 1] == &digs[4] ? 1 : -1);
+	  #endif
+	  /* Catch a bug in an HP-UX C compiler.  See
+	     http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+	     http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+	   */
+	  _Bool q = true;
+	  _Bool *pq = &q;
+	],
+	[
+	  *pq |= q;
+	  *pq |= ! q;
+	  /* Refer to every declared value, to avoid compiler optimizations.  */
+	  return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
+		  + !m + !n + !o + !p + !q + !pq);
+	],
+	[ac_cv_header_stdbool_h=yes],
+	[ac_cv_header_stdbool_h=no])])
+   AC_CHECK_TYPES([_Bool])
+   if test $ac_cv_header_stdbool_h = yes; then
+     AC_DEFINE(HAVE_STDBOOL_H, 1, [Define to 1 if stdbool.h conforms to C99.])
+   fi])

m4/strftime.m4

@@ -0,0 +1,33 @@
+#serial 29
+
+# Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 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 Jim Meyering and Paul Eggert.
+
+AC_DEFUN([gl_FUNC_GNU_STRFTIME],
+[
+  gl_FUNC_STRFTIME
+])
+
+# These are the prerequisite macros for GNU's strftime.c replacement.
+AC_DEFUN([gl_FUNC_STRFTIME],
+[
+ AC_LIBOBJ([strftime])
+
+ # This defines (or not) HAVE_TZNAME and HAVE_TM_ZONE.
+ AC_REQUIRE([AC_STRUCT_TIMEZONE])
+
+ AC_REQUIRE([AC_TYPE_MBSTATE_T])
+ AC_REQUIRE([gl_TM_GMTOFF])
+
+ AC_CHECK_FUNCS_ONCE(mblen mbrlen mempcpy tzset)
+ AC_CHECK_HEADERS_ONCE(wchar.h)
+
+ AC_DEFINE([my_strftime], [nstrftime],
+   [Define to the name of the strftime replacement function.])
+])

m4/time_h.m4

@@ -0,0 +1,74 @@
+# 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_CHECK_NEXT_HEADERS([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_sys_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])
+])

m4/time_r.m4

@@ -0,0 +1,43 @@
+dnl Reentrant time functions like localtime_r.
+
+dnl Copyright (C) 2003, 2006, 2007, 2008 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.
+
+dnl Written by Paul Eggert.
+
+AC_DEFUN([gl_TIME_R],
+[
+ dnl Persuade glibc and Solaris <time.h> to declare localtime_r.
+  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+
+  AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
+  AC_REQUIRE([AC_C_RESTRICT])
+
+  AC_CACHE_CHECK([whether localtime_r is compatible with its POSIX signature],
+    [gl_cv_time_r_posix],
+    [AC_TRY_COMPILE(
+       [#include <time.h>],
+       [/* We don't need to append 'restrict's to the argument types,
+	   even though the POSIX signature has the 'restrict's,
+	   since C99 says they can't affect type compatibility.  */
+	struct tm * (*ptr) (time_t const *, struct tm *) = localtime_r;
+        if (ptr) return 0;
+        /* Check the return type is a pointer.  On HP-UX 10 it is 'int'.  */
+        *localtime_r (0, 0);],
+       [gl_cv_time_r_posix=yes],
+       [gl_cv_time_r_posix=no])])
+  if test $gl_cv_time_r_posix = yes; then
+    REPLACE_LOCALTIME_R=0
+  else
+    REPLACE_LOCALTIME_R=1
+    AC_LIBOBJ([time_r])
+    gl_PREREQ_TIME_R
+  fi
+])
+
+# Prerequisites of lib/time_r.c.
+AC_DEFUN([gl_PREREQ_TIME_R], [
+  :
+])

m4/tm_gmtoff.m4

@@ -0,0 +1,14 @@
+# tm_gmtoff.m4 serial 2
+dnl Copyright (C) 2002 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.
+
+AC_DEFUN([gl_TM_GMTOFF],
+[
+ AC_CHECK_MEMBER([struct tm.tm_gmtoff],
+                 [AC_DEFINE(HAVE_TM_GMTOFF, 1,
+                            [Define if struct tm has the tm_gmtoff member.])],
+                 ,
+                 [#include <time.h>])
+])

m4/wchar.m4

@@ -0,0 +1,54 @@
+dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues.
+
+dnl Copyright (C) 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.
+
+dnl Written by Eric Blake.
+
+# wchar.m4 serial 4
+
+AC_DEFUN([gl_WCHAR_H],
+[
+  AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
+  AC_CACHE_CHECK([whether <wchar.h> is standalone],
+    [gl_cv_header_wchar_h_standalone],
+    [AC_COMPILE_IFELSE([[#include <wchar.h>
+wchar_t w;]],
+      [gl_cv_header_wchar_h_standalone=yes],
+      [gl_cv_header_wchar_h_standalone=no])])
+  if test $gl_cv_header_wchar_h_standalone != yes; then
+    WCHAR_H=wchar.h
+  fi
+
+  dnl Prepare for creating substitute <wchar.h>.
+  dnl Do it always: WCHAR_H may be empty here but can be set later.
+  dnl Check for <wchar.h> (missing in Linux uClibc when built without wide
+  dnl character support).
+  AC_CHECK_HEADERS_ONCE([wchar.h])
+  if test $ac_cv_header_wchar_h = yes; then
+    HAVE_WCHAR_H=1
+  else
+    HAVE_WCHAR_H=0
+  fi
+  AC_SUBST([HAVE_WCHAR_H])
+  gl_CHECK_NEXT_HEADERS([wchar.h])
+])
+
+AC_DEFUN([gl_WCHAR_MODULE_INDICATOR],
+[
+  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+  AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
+  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+])
+
+AC_DEFUN([gl_WCHAR_H_DEFAULTS],
+[
+  GNULIB_WCWIDTH=0; AC_SUBST([GNULIB_WCWIDTH])
+  dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_DECL_WCWIDTH=1; AC_SUBST([HAVE_DECL_WCWIDTH])
+  REPLACE_WCWIDTH=0;   AC_SUBST([REPLACE_WCWIDTH])
+  WCHAR_H=
+  AC_SUBST([WCHAR_H])
+])