Update gnulib files.

author: Simon Josefsson <simon@josefsson.org> 2011-09-21 15:49:06 +0200
committer: Simon Josefsson <simon@josefsson.org> 2011-09-21 15:49:06 +0200
commit: 5fdaefe2cfd2e38a83fee58c6a2b852d5e124d69 (patch)
tree: aba3494f385bea407fd4b4f840b8b9cdfef711c2 /gl
parent: 0f206a54a53abe0ca38216081d587cf98096fb26 (diff)
download: gnutls-5fdaefe2cfd2e38a83fee58c6a2b852d5e124d69.tar.gz
84 files changed, 2336 insertions, 207 deletions
diff --git a/gl/Makefile.am b/gl/Makefile.am
index 7ccc3b5a2a..93e68b2152 100644
--- a/gl/Makefile.am
+++ b/gl/Makefile.am
@@ -131,6 +131,15 @@ libgnu_la_SOURCES += c-ctype.h c-ctype.c
 
 ## end   gnulib module c-ctype
 
+## begin gnulib module closedir
+
+
+EXTRA_DIST += closedir.c dirent-private.h
+
+EXTRA_libgnu_la_SOURCES += closedir.c
+
+## end   gnulib module closedir
+
 ## begin gnulib module crypto/hmac-md5
 
 libgnu_la_SOURCES += hmac-md5.c
@@ -157,23 +166,32 @@ dirent.h: dirent.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H
 	$(AM_V_GEN)rm -f $@-t $@ && \
 	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
 	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
+	      -e 's|@''HAVE_DIRENT_H''@|$(HAVE_DIRENT_H)|g' \
 	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
 	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
 	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
 	      -e 's|@''NEXT_DIRENT_H''@|$(NEXT_DIRENT_H)|g' \
+	      -e 's/@''GNULIB_OPENDIR''@/$(GNULIB_OPENDIR)/g' \
+	      -e 's/@''GNULIB_READDIR''@/$(GNULIB_READDIR)/g' \
+	      -e 's/@''GNULIB_REWINDDIR''@/$(GNULIB_REWINDDIR)/g' \
+	      -e 's/@''GNULIB_CLOSEDIR''@/$(GNULIB_CLOSEDIR)/g' \
 	      -e 's/@''GNULIB_DIRFD''@/$(GNULIB_DIRFD)/g' \
 	      -e 's/@''GNULIB_FDOPENDIR''@/$(GNULIB_FDOPENDIR)/g' \
 	      -e 's/@''GNULIB_SCANDIR''@/$(GNULIB_SCANDIR)/g' \
 	      -e 's/@''GNULIB_ALPHASORT''@/$(GNULIB_ALPHASORT)/g' \
+	      -e 's/@''HAVE_OPENDIR''@/$(HAVE_OPENDIR)/g' \
+	      -e 's/@''HAVE_READDIR''@/$(HAVE_READDIR)/g' \
+	      -e 's/@''HAVE_REWINDDIR''@/$(HAVE_REWINDDIR)/g' \
+	      -e 's/@''HAVE_CLOSEDIR''@/$(HAVE_CLOSEDIR)/g' \
 	      -e 's|@''HAVE_DECL_DIRFD''@|$(HAVE_DECL_DIRFD)|g' \
 	      -e 's|@''HAVE_DECL_FDOPENDIR''@|$(HAVE_DECL_FDOPENDIR)|g' \
 	      -e 's|@''HAVE_FDOPENDIR''@|$(HAVE_FDOPENDIR)|g' \
 	      -e 's|@''HAVE_SCANDIR''@|$(HAVE_SCANDIR)|g' \
 	      -e 's|@''HAVE_ALPHASORT''@|$(HAVE_ALPHASORT)|g' \
+	      -e 's|@''REPLACE_OPENDIR''@|$(REPLACE_OPENDIR)|g' \
 	      -e 's|@''REPLACE_CLOSEDIR''@|$(REPLACE_CLOSEDIR)|g' \
 	      -e 's|@''REPLACE_DIRFD''@|$(REPLACE_DIRFD)|g' \
 	      -e 's|@''REPLACE_FDOPENDIR''@|$(REPLACE_FDOPENDIR)|g' \
-	      -e 's|@''REPLACE_OPENDIR''@|$(REPLACE_OPENDIR)|g' \
 	      -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
 	      -e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
 	      -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)' \
@@ -252,6 +270,13 @@ EXTRA_DIST += fd-hook.h
 
 ## end   gnulib module fd-hook
 
+## begin gnulib module filename
+
+
+EXTRA_DIST += filename.h
+
+## end   gnulib module filename
+
 ## begin gnulib module float
 
 BUILT_SOURCES += $(FLOAT_H)
@@ -756,6 +781,15 @@ EXTRA_DIST += netinet_in.in.h
 
 ## end   gnulib module netinet_in
 
+## begin gnulib module opendir
+
+
+EXTRA_DIST += dirent-private.h opendir.c
+
+EXTRA_libgnu_la_SOURCES += opendir.c
+
+## end   gnulib module opendir
+
 ## begin gnulib module printf-frexp
 
 libgnu_la_SOURCES += printf-frexp.c
@@ -797,6 +831,15 @@ EXTRA_DIST += read-file.h
 
 ## end   gnulib module read-file
 
+## begin gnulib module readdir
+
+
+EXTRA_DIST += dirent-private.h readdir.c
+
+EXTRA_libgnu_la_SOURCES += readdir.c
+
+## end   gnulib module readdir
+
 ## begin gnulib module realloc-posix
 
 
@@ -1108,6 +1151,7 @@ stdio.h: stdio.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H)
 	      -e 's/@''GNULIB_GETS''@/$(GNULIB_GETS)/g' \
 	      -e 's/@''GNULIB_OBSTACK_PRINTF''@/$(GNULIB_OBSTACK_PRINTF)/g' \
 	      -e 's/@''GNULIB_OBSTACK_PRINTF_POSIX''@/$(GNULIB_OBSTACK_PRINTF_POSIX)/g' \
+	      -e 's/@''GNULIB_PCLOSE''@/$(GNULIB_PCLOSE)/g' \
 	      -e 's/@''GNULIB_PERROR''@/$(GNULIB_PERROR)/g' \
 	      -e 's/@''GNULIB_POPEN''@/$(GNULIB_POPEN)/g' \
 	      -e 's/@''GNULIB_PRINTF''@/$(GNULIB_PRINTF)/g' \
@@ -1146,6 +1190,8 @@ stdio.h: stdio.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H)
 	      -e 's|@''HAVE_DPRINTF''@|$(HAVE_DPRINTF)|g' \
 	      -e 's|@''HAVE_FSEEKO''@|$(HAVE_FSEEKO)|g' \
 	      -e 's|@''HAVE_FTELLO''@|$(HAVE_FTELLO)|g' \
+	      -e 's|@''HAVE_PCLOSE''@|$(HAVE_PCLOSE)|g' \
+	      -e 's|@''HAVE_POPEN''@|$(HAVE_POPEN)|g' \
 	      -e 's|@''HAVE_RENAMEAT''@|$(HAVE_RENAMEAT)|g' \
 	      -e 's|@''HAVE_VASPRINTF''@|$(HAVE_VASPRINTF)|g' \
 	      -e 's|@''HAVE_VDPRINTF''@|$(HAVE_VDPRINTF)|g' \
@@ -1439,6 +1485,7 @@ strings.h: strings.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(WARN_ON_USE
 	$(AM_V_GEN)rm -f $@-t $@ && \
 	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
 	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
+	      -e 's|@''HAVE_STRINGS_H''@|$(HAVE_STRINGS_H)|g' \
 	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
 	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
 	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
@@ -1614,6 +1661,7 @@ sys/time.h: sys_time.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNU
 	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
 	      -e 's|@''NEXT_SYS_TIME_H''@|$(NEXT_SYS_TIME_H)|g' \
 	      -e 's/@''GNULIB_GETTIMEOFDAY''@/$(GNULIB_GETTIMEOFDAY)/g' \
+	      -e 's|@''HAVE_WINSOCK2_H''@|$(HAVE_WINSOCK2_H)|g' \
 	      -e 's/@''HAVE_GETTIMEOFDAY''@/$(HAVE_GETTIMEOFDAY)/g' \
 	      -e 's/@''HAVE_STRUCT_TIMEVAL''@/$(HAVE_STRUCT_TIMEVAL)/g' \
 	      -e 's/@''REPLACE_GETTIMEOFDAY''@/$(REPLACE_GETTIMEOFDAY)/g' \
@@ -1629,6 +1677,30 @@ EXTRA_DIST += sys_time.in.h
 
 ## end   gnulib module sys_time
 
+## begin gnulib module sys_types
+
+BUILT_SOURCES += sys/types.h
+
+# We need the following in order to create <sys/types.h> when the system
+# doesn't have one that works with the given compiler.
+sys/types.h: sys_types.in.h $(top_builddir)/config.status
+	$(AM_V_at)$(MKDIR_P) sys
+	$(AM_V_GEN)rm -f $@-t $@ && \
+	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
+	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
+	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
+	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
+	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
+	      -e 's|@''NEXT_SYS_TYPES_H''@|$(NEXT_SYS_TYPES_H)|g' \
+	      < $(srcdir)/sys_types.in.h; \
+	} > $@-t && \
+	mv $@-t $@
+MOSTLYCLEANFILES += sys/types.h sys/types.h-t
+
+EXTRA_DIST += sys_types.in.h
+
+## end   gnulib module sys_types
+
 ## begin gnulib module sys_uio
 
 BUILT_SOURCES += sys/uio.h
@@ -1773,6 +1845,7 @@ unistd.h: unistd.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H
 	      -e 's/@''GNULIB_FACCESSAT''@/$(GNULIB_FACCESSAT)/g' \
 	      -e 's/@''GNULIB_FCHDIR''@/$(GNULIB_FCHDIR)/g' \
 	      -e 's/@''GNULIB_FCHOWNAT''@/$(GNULIB_FCHOWNAT)/g' \
+	      -e 's/@''GNULIB_FDATASYNC''@/$(GNULIB_FDATASYNC)/g' \
 	      -e 's/@''GNULIB_FSYNC''@/$(GNULIB_FSYNC)/g' \
 	      -e 's/@''GNULIB_FTRUNCATE''@/$(GNULIB_FTRUNCATE)/g' \
 	      -e 's/@''GNULIB_GETCWD''@/$(GNULIB_GETCWD)/g' \
@@ -1816,6 +1889,7 @@ unistd.h: unistd.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H
 	      -e 's|@''HAVE_FACCESSAT''@|$(HAVE_FACCESSAT)|g' \
 	      -e 's|@''HAVE_FCHDIR''@|$(HAVE_FCHDIR)|g' \
 	      -e 's|@''HAVE_FCHOWNAT''@|$(HAVE_FCHOWNAT)|g' \
+	      -e 's|@''HAVE_FDATASYNC''@|$(HAVE_FDATASYNC)|g' \
 	      -e 's|@''HAVE_FSYNC''@|$(HAVE_FSYNC)|g' \
 	      -e 's|@''HAVE_FTRUNCATE''@|$(HAVE_FTRUNCATE)|g' \
 	      -e 's|@''HAVE_GETDTABLESIZE''@|$(HAVE_GETDTABLESIZE)|g' \
@@ -1840,6 +1914,7 @@ unistd.h: unistd.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H
 	      -e 's|@''HAVE_USLEEP''@|$(HAVE_USLEEP)|g' \
 	      -e 's|@''HAVE_DECL_ENVIRON''@|$(HAVE_DECL_ENVIRON)|g' \
 	      -e 's|@''HAVE_DECL_FCHDIR''@|$(HAVE_DECL_FCHDIR)|g' \
+	      -e 's|@''HAVE_DECL_FDATASYNC''@|$(HAVE_DECL_FDATASYNC)|g' \
 	      -e 's|@''HAVE_DECL_GETDOMAINNAME''@|$(HAVE_DECL_GETDOMAINNAME)|g' \
 	      -e 's|@''HAVE_DECL_GETLOGIN_R''@|$(HAVE_DECL_GETLOGIN_R)|g' \
 	      -e 's|@''HAVE_DECL_GETPAGESIZE''@|$(HAVE_DECL_GETPAGESIZE)|g' \
diff --git a/gl/closedir.c b/gl/closedir.c
new file mode 100644
index 0000000000..700d60eeb4
--- /dev/null
+++ b/gl/closedir.c
@@ -0,0 +1,63 @@
+/* Stop reading the entries of a directory.
+   Copyright (C) 2006-2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <dirent.h>
+
+#if HAVE_CLOSEDIR
+
+/* Override closedir(), to keep track of the open file descriptors.
+   Needed because there is a function dirfd().  */
+
+#else
+
+# include <stdlib.h>
+
+# include "dirent-private.h"
+
+#endif
+
+int
+closedir (DIR *dirp)
+{
+# if REPLACE_FCHDIR
+  int fd = dirfd (dirp);
+# endif
+  int retval;
+
+#if HAVE_CLOSEDIR
+# undef closedir
+
+  retval = closedir (dirp);
+
+#else
+
+  if (dirp->current != INVALID_HANDLE_VALUE)
+    FindClose (dirp->current);
+  free (dirp);
+
+  retval = 0;
+
+#endif
+
+#if REPLACE_FCHDIR
+  if (retval >= 0)
+    _gl_unregister_fd (fd);
+#endif
+  return retval;
+}
diff --git a/gl/dirent-private.h b/gl/dirent-private.h
new file mode 100644
index 0000000000..74632ff39b
--- /dev/null
+++ b/gl/dirent-private.h
@@ -0,0 +1,40 @@
+/* Private details of the DIR type.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _DIRENT_PRIVATE_H
+#define _DIRENT_PRIVATE_H 1
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+struct gl_directory
+{
+  /* Status, or error code to produce in next readdir() call.
+     -2 means the end of the directory is already reached,
+     -1 means the entry was already filled by FindFirstFile,
+     0 means the entry needs to be filled using FindNextFile.
+     A positive value is an error code.  */
+  int status;
+  /* Handle, reading the directory, at current position.  */
+  HANDLE current;
+  /* Found directory entry.  */
+  WIN32_FIND_DATA entry;
+  /* Argument to pass to FindFirstFile.  It consists of the absolutized
+     directory name, followed by a directory separator and the wildcards.  */
+  char dir_name_mask[1];
+};
+
+#endif /* _DIRENT_PRIVATE_H */
diff --git a/gl/dirent.in.h b/gl/dirent.in.h
index ebbc425511..cbcf841df2 100644
--- a/gl/dirent.in.h
+++ b/gl/dirent.in.h
@@ -22,7 +22,9 @@
 @PRAGMA_COLUMNS@
 
 /* The include_next requires a split double-inclusion guard.  */
-#@INCLUDE_NEXT@ @NEXT_DIRENT_H@
+#if @HAVE_DIRENT_H@
+# @INCLUDE_NEXT@ @NEXT_DIRENT_H@
+#endif
 
 #ifndef _@GUARD_PREFIX@_DIRENT_H
 #define _@GUARD_PREFIX@_DIRENT_H
@@ -30,6 +32,29 @@
 /* Get ino_t.  Needed on some systems, including glibc 2.8.  */
 #include <sys/types.h>
 
+#if !@HAVE_DIRENT_H@
+/* Define types DIR and 'struct dirent'.  */
+# if !GNULIB_defined_struct_dirent
+struct dirent
+{
+  char d_type;
+  char d_name[1];
+};
+/* Possible values for 'd_type'.  */
+#  define DT_UNKNOWN 0
+#  define DT_FIFO    1          /* FIFO */
+#  define DT_CHR     2          /* character device */
+#  define DT_DIR     4          /* directory */
+#  define DT_BLK     6          /* block device */
+#  define DT_REG     8          /* regular file */
+#  define DT_LNK    10          /* symbolic link */
+#  define DT_SOCK   12          /* socket */
+#  define DT_WHT    14          /* whiteout */
+typedef struct gl_directory DIR;
+#  define GNULIB_defined_struct_dirent 1
+# endif
+#endif
+
 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
 
 /* The definition of _GL_ARG_NONNULL is copied here.  */
@@ -39,16 +64,79 @@
 
 /* Declare overridden functions.  */
 
-#if @REPLACE_CLOSEDIR@
-# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#  define closedir rpl_closedir
+#if @GNULIB_OPENDIR@
+# if @REPLACE_OPENDIR@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef opendir
+#   define opendir rpl_opendir
+#  endif
+_GL_FUNCDECL_RPL (opendir, DIR *, (const char *dir_name) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (opendir, DIR *, (const char *dir_name));
+# else
+#  if !@HAVE_OPENDIR@
+_GL_FUNCDECL_SYS (opendir, DIR *, (const char *dir_name) _GL_ARG_NONNULL ((1)));
+#  endif
+_GL_CXXALIAS_SYS (opendir, DIR *, (const char *dir_name));
+# endif
+_GL_CXXALIASWARN (opendir);
+#elif defined GNULIB_POSIXCHECK
+# undef opendir
+# if HAVE_RAW_DECL_OPENDIR
+_GL_WARN_ON_USE (opendir, "opendir is not portable - "
+                 "use gnulib module opendir for portability");
+# endif
+#endif
+
+#if @GNULIB_READDIR@
+# if !@HAVE_READDIR@
+_GL_FUNCDECL_SYS (readdir, struct dirent *, (DIR *dirp) _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (readdir, struct dirent *, (DIR *dirp));
+_GL_CXXALIASWARN (readdir);
+#elif defined GNULIB_POSIXCHECK
+# undef readdir
+# if HAVE_RAW_DECL_READDIR
+_GL_WARN_ON_USE (readdir, "readdir is not portable - "
+                 "use gnulib module readdir for portability");
+# endif
+#endif
+
+#if @GNULIB_REWINDDIR@
+# if !@HAVE_REWINDDIR@
+_GL_FUNCDECL_SYS (rewinddir, void, (DIR *dirp) _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (rewinddir, void, (DIR *dirp));
+_GL_CXXALIASWARN (rewinddir);
+#elif defined GNULIB_POSIXCHECK
+# undef rewinddir
+# if HAVE_RAW_DECL_REWINDDIR
+_GL_WARN_ON_USE (rewinddir, "rewinddir is not portable - "
+                 "use gnulib module rewinddir for portability");
 # endif
-_GL_FUNCDECL_RPL (closedir, int, (DIR *) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (closedir, int, (DIR *));
-#else
-_GL_CXXALIAS_SYS (closedir, int, (DIR *));
 #endif
+
+#if @GNULIB_CLOSEDIR@
+# if @REPLACE_CLOSEDIR@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef closedir
+#   define closedir rpl_closedir
+#  endif
+_GL_FUNCDECL_RPL (closedir, int, (DIR *dirp) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (closedir, int, (DIR *dirp));
+# else
+#  if !@HAVE_CLOSEDIR@
+_GL_FUNCDECL_SYS (closedir, int, (DIR *dirp) _GL_ARG_NONNULL ((1)));
+#  endif
+_GL_CXXALIAS_SYS (closedir, int, (DIR *dirp));
+# endif
 _GL_CXXALIASWARN (closedir);
+#elif defined GNULIB_POSIXCHECK
+# undef closedir
+# if HAVE_RAW_DECL_CLOSEDIR
+_GL_WARN_ON_USE (closedir, "closedir is not portable - "
+                 "use gnulib module closedir for portability");
+# endif
+#endif
 
 #if @GNULIB_DIRFD@
 /* Return the file descriptor associated with the given directory stream,
@@ -109,17 +197,6 @@ _GL_WARN_ON_USE (fdopendir, "fdopendir is unportable - "
 # endif
 #endif
 
-#if @REPLACE_OPENDIR@
-# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#  define opendir rpl_opendir
-# endif
-_GL_FUNCDECL_RPL (opendir, DIR *, (const char *) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (opendir, DIR *, (const char *));
-#else
-_GL_CXXALIAS_SYS (opendir, DIR *, (const char *));
-#endif
-_GL_CXXALIASWARN (opendir);
-
 #if @GNULIB_SCANDIR@
 /* Scan the directory DIR, calling FILTER on each directory entry.
    Entries for which FILTER returns nonzero are individually malloc'd,
diff --git a/gl/filename.h b/gl/filename.h
new file mode 100644
index 0000000000..7827c11292
--- /dev/null
+++ b/gl/filename.h
@@ -0,0 +1,54 @@
+/* Basic filename support macros.
+   Copyright (C) 2001-2004, 2007-2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _FILENAME_H
+#define _FILENAME_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Pathname support.
+   ISSLASH(C)           tests whether C is a directory separator character.
+   IS_ABSOLUTE_PATH(P)  tests whether P is an absolute path.  If it is not,
+                        it may be concatenated to a directory pathname.
+   IS_PATH_WITH_DIR(P)  tests whether P contains a directory specification.
+ */
+#if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
+  /* Win32, Cygwin, OS/2, DOS */
+# define ISSLASH(C) ((C) == '/' || (C) == '\\')
+# define HAS_DEVICE(P) \
+    ((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) \
+     && (P)[1] == ':')
+# define IS_ABSOLUTE_PATH(P) (ISSLASH ((P)[0]) || HAS_DEVICE (P))
+# define IS_PATH_WITH_DIR(P) \
+    (strchr (P, '/') != NULL || strchr (P, '\\') != NULL || HAS_DEVICE (P))
+# define FILE_SYSTEM_PREFIX_LEN(P) (HAS_DEVICE (P) ? 2 : 0)
+#else
+  /* Unix */
+# define ISSLASH(C) ((C) == '/')
+# define IS_ABSOLUTE_PATH(P) ISSLASH ((P)[0])
+# define IS_PATH_WITH_DIR(P) (strchr (P, '/') != NULL)
+# define FILE_SYSTEM_PREFIX_LEN(P) 0
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _FILENAME_H */
diff --git a/gl/isnan.c b/gl/isnan.c
index d9c653dea8..f26dc1ec1b 100644
--- a/gl/isnan.c
+++ b/gl/isnan.c
@@ -117,17 +117,20 @@ FUNC (DOUBLE x)
 # else
   /* Be careful to not do any floating-point operation on x, such as x == x,
      because x may be a signaling NaN.  */
-#  if defined __TINYC__ || defined __SUNPRO_C || defined __DECC \
-      || (defined __sgi && !defined __GNUC__) || defined __ICC
-  /* The Sun C 5.0, Intel ICC 10.0, and Compaq (ex-DEC) 6.4 compilers don't
-     recognize the initializers as constant expressions.  The latter compiler
-     also fails when constant-folding 0.0 / 0.0 even when constant-folding is
-     not required.  The SGI MIPSpro C compiler complains about "floating-point
-     operation result is out of range".  */
+#  if defined __SUNPRO_C || defined __ICC || defined _MSC_VER \
+      || defined __DECC || defined __TINYC__ \
+      || (defined __sgi && !defined __GNUC__)
+  /* The Sun C 5.0, Intel ICC 10.0, Microsoft Visual C/C++ 9.0, Compaq (ex-DEC)
+     6.4, and TinyCC compilers don't recognize the initializers as constant
+     expressions.  The Compaq compiler also fails when constant-folding
+     0.0 / 0.0 even when constant-folding is not required.  The Microsoft
+     Visual C/C++ compiler also fails when constant-folding 1.0 / 0.0 even
+     when constant-folding is not required. The SGI MIPSpro C compiler
+     complains about "floating-point operation result is out of range".  */
   static DOUBLE zero = L_(0.0);
   memory_double nan;
-  DOUBLE plus_inf = L_(1.0) / L_(0.0);
-  DOUBLE minus_inf = -L_(1.0) / L_(0.0);
+  DOUBLE plus_inf = L_(1.0) / zero;
+  DOUBLE minus_inf = -L_(1.0) / zero;
   nan.value = zero / zero;
 #  else
   static memory_double nan = { L_(0.0) / L_(0.0) };
diff --git a/gl/m4/argp.m4 b/gl/m4/argp.m4
index 4e3940a65c..a9963ee6d6 100644
--- a/gl/m4/argp.m4
+++ b/gl/m4/argp.m4
@@ -1,4 +1,4 @@
-# argp.m4 serial 12
+# argp.m4 serial 13
 dnl Copyright (C) 2003-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -15,13 +15,13 @@ AC_DEFUN([gl_ARGP],
                            [Define if program_invocation_name is declared])],
                 [AC_DEFINE([GNULIB_PROGRAM_INVOCATION_NAME], [1],
                            [Define to 1 to add extern declaration of program_invocation_name to argp.h])],
-                [#include <errno.h>])
+                [[#include <errno.h>]])
   AC_CHECK_DECL([program_invocation_short_name],
                 [AC_DEFINE([HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME], [1],
                            [Define if program_invocation_short_name is declared])],
                 [AC_DEFINE([GNULIB_PROGRAM_INVOCATION_SHORT_NAME], [1],
                            [Define to 1 to add extern declaration of program_invocation_short_name to argp.h])],
-                [#include <errno.h>])
+                [[#include <errno.h>]])
 
   # Check if program_invocation_name and program_invocation_short_name
   # are defined elsewhere. It is improbable that only one of them will
diff --git a/gl/m4/closedir.m4 b/gl/m4/closedir.m4
new file mode 100644
index 0000000000..1b7912a30b
--- /dev/null
+++ b/gl/m4/closedir.m4
@@ -0,0 +1,23 @@
+# closedir.m4 serial 1
+dnl Copyright (C) 2011 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_FUNC_CLOSEDIR],
+[
+  AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
+
+  AC_CHECK_FUNCS([closedir])
+  if test $ac_cv_func_closedir = no; then
+    HAVE_CLOSEDIR=0
+  fi
+  dnl Replace closedir() for supporting the gnulib-defined fchdir() function,
+  dnl to keep fchdir's bookkeeping up-to-date.
+  m4_ifdef([gl_FUNC_FCHDIR], [
+    gl_TEST_FCHDIR
+    if test $HAVE_FCHDIR = 0; then
+      REPLACE_CLOSEDIR=1
+    fi
+  ])
+])
diff --git a/gl/m4/dirent_h.m4 b/gl/m4/dirent_h.m4
index fdc2c440d6..ab45170b99 100644
--- a/gl/m4/dirent_h.m4
+++ b/gl/m4/dirent_h.m4
@@ -1,4 +1,4 @@
-# dirent_h.m4 serial 14
+# dirent_h.m4 serial 16
 dnl Copyright (C) 2008-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -14,11 +14,17 @@ AC_DEFUN([gl_DIRENT_H],
 
   dnl <dirent.h> is always overridden, because of GNULIB_POSIXCHECK.
   gl_CHECK_NEXT_HEADERS([dirent.h])
+  if test $ac_cv_header_dirent_h = yes; then
+    HAVE_DIRENT_H=1
+  else
+    HAVE_DIRENT_H=0
+  fi
+  AC_SUBST([HAVE_DIRENT_H])
 
   dnl Check for declarations of anything we want to poison if the
   dnl corresponding gnulib module is not in use.
   gl_WARN_ON_USE_PREPARE([[#include <dirent.h>
-    ]], [alphasort dirfd fdopendir scandir])
+    ]], [alphasort closedir dirfd fdopendir opendir readdir rewinddir scandir])
 ])
 
 AC_DEFUN([gl_DIRENT_MODULE_INDICATOR],
@@ -33,18 +39,26 @@ AC_DEFUN([gl_DIRENT_MODULE_INDICATOR],
 AC_DEFUN([gl_DIRENT_H_DEFAULTS],
 [
   AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for REPLACE_FCHDIR
+  GNULIB_OPENDIR=0;     AC_SUBST([GNULIB_OPENDIR])
+  GNULIB_READDIR=0;     AC_SUBST([GNULIB_READDIR])
+  GNULIB_REWINDDIR=0;   AC_SUBST([GNULIB_REWINDDIR])
+  GNULIB_CLOSEDIR=0;    AC_SUBST([GNULIB_CLOSEDIR])
   GNULIB_DIRFD=0;       AC_SUBST([GNULIB_DIRFD])
   GNULIB_FDOPENDIR=0;   AC_SUBST([GNULIB_FDOPENDIR])
   GNULIB_SCANDIR=0;     AC_SUBST([GNULIB_SCANDIR])
   GNULIB_ALPHASORT=0;   AC_SUBST([GNULIB_ALPHASORT])
   dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_OPENDIR=1;       AC_SUBST([HAVE_OPENDIR])
+  HAVE_READDIR=1;       AC_SUBST([HAVE_READDIR])
+  HAVE_REWINDDIR=1;     AC_SUBST([HAVE_REWINDDIR])
+  HAVE_CLOSEDIR=1;      AC_SUBST([HAVE_CLOSEDIR])
   HAVE_DECL_DIRFD=1;    AC_SUBST([HAVE_DECL_DIRFD])
   HAVE_DECL_FDOPENDIR=1;AC_SUBST([HAVE_DECL_FDOPENDIR])
   HAVE_FDOPENDIR=1;     AC_SUBST([HAVE_FDOPENDIR])
   HAVE_SCANDIR=1;       AC_SUBST([HAVE_SCANDIR])
   HAVE_ALPHASORT=1;     AC_SUBST([HAVE_ALPHASORT])
+  REPLACE_OPENDIR=0;    AC_SUBST([REPLACE_OPENDIR])
   REPLACE_CLOSEDIR=0;   AC_SUBST([REPLACE_CLOSEDIR])
   REPLACE_DIRFD=0;      AC_SUBST([REPLACE_DIRFD])
   REPLACE_FDOPENDIR=0;  AC_SUBST([REPLACE_FDOPENDIR])
-  REPLACE_OPENDIR=0;    AC_SUBST([REPLACE_OPENDIR])
 ])
diff --git a/gl/m4/environ.m4 b/gl/m4/environ.m4
index 7457ad1399..6c7982f9bb 100644
--- a/gl/m4/environ.m4
+++ b/gl/m4/environ.m4
@@ -1,4 +1,4 @@
-# environ.m4 serial 5
+# environ.m4 serial 6
 dnl Copyright (C) 2001-2004, 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -9,7 +9,16 @@ AC_DEFUN_ONCE([gl_ENVIRON],
   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
   dnl Persuade glibc <unistd.h> to declare environ.
   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
-  gt_CHECK_VAR_DECL([#include <unistd.h>], environ)
+
+  AC_CHECK_HEADERS_ONCE([unistd.h])
+  gt_CHECK_VAR_DECL(
+    [#if HAVE_UNISTD_H
+     #include <unistd.h>
+     #endif
+     /* mingw, BeOS, Haiku declare environ in <stdlib.h>, not in <unistd.h>.  */
+     #include <stdlib.h>
+    ],
+    [environ])
   if test $gt_cv_var_environ_declaration != yes; then
     HAVE_DECL_ENVIRON=0
   fi
diff --git a/gl/m4/fcntl-o.m4 b/gl/m4/fcntl-o.m4
index 88db07ec73..bee6edc114 100644
--- a/gl/m4/fcntl-o.m4
+++ b/gl/m4/fcntl-o.m4
@@ -1,4 +1,4 @@
-# fcntl-o.m4 serial 3
+# fcntl-o.m4 serial 4
 dnl Copyright (C) 2006, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -17,12 +17,21 @@ AC_DEFUN([gl_FCNTL_O_FLAGS],
   m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],
     [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])],
     [AC_REQUIRE([AC_GNU_SOURCE])])
+
+  AC_CHECK_HEADERS_ONCE([unistd.h])
+  AC_CHECK_FUNCS_ONCE([symlink])
   AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h],
     [AC_RUN_IFELSE(
        [AC_LANG_PROGRAM(
           [[#include <sys/types.h>
            #include <sys/stat.h>
-           #include <unistd.h>
+           #if HAVE_UNISTD_H
+           # include <unistd.h>
+           #else /* on Windows with MSVC */
+           # include <io.h>
+           # include <stdlib.h>
+           # defined sleep(n) _sleep ((n) * 1000)
+           #endif
            #include <fcntl.h>
            #ifndef O_NOATIME
             #define O_NOATIME 0
@@ -38,6 +47,7 @@ AC_DEFUN([gl_FCNTL_O_FLAGS],
           ]],
           [[
             int result = !constants;
+            #if HAVE_SYMLINK
             {
               static char const sym[] = "conftest.sym";
               if (symlink (".", sym) != 0)
@@ -53,6 +63,7 @@ AC_DEFUN([gl_FCNTL_O_FLAGS],
                 }
               unlink (sym);
             }
+            #endif
             {
               static char const file[] = "confdefs.h";
               int fd = open (file, O_RDONLY | O_NOATIME);
diff --git a/gl/m4/fcntl_h.m4 b/gl/m4/fcntl_h.m4
index c466da4df5..03a41e6709 100644
--- a/gl/m4/fcntl_h.m4
+++ b/gl/m4/fcntl_h.m4
@@ -1,4 +1,4 @@
-# serial 13
+# serial 15
 # Configure fcntl.h.
 dnl Copyright (C) 2006-2007, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
@@ -13,6 +13,12 @@ AC_DEFUN([gl_FCNTL_H],
   AC_REQUIRE([gl_FCNTL_O_FLAGS])
   gl_NEXT_HEADERS([fcntl.h])
 
+  dnl Ensure the type pid_t gets defined.
+  AC_REQUIRE([AC_TYPE_PID_T])
+
+  dnl Ensure the type mode_t gets defined.
+  AC_REQUIRE([AC_TYPE_MODE_T])
+
   dnl Check for declarations of anything we want to poison if the
   dnl corresponding gnulib module is not in use, if it is not common
   dnl enough to be declared everywhere.
diff --git a/gl/m4/frexp.m4 b/gl/m4/frexp.m4
index 125edcdc45..f2048f3be3 100644
--- a/gl/m4/frexp.m4
+++ b/gl/m4/frexp.m4
@@ -1,4 +1,4 @@
-# frexp.m4 serial 11
+# frexp.m4 serial 12
 dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -133,7 +133,7 @@ int main()
         result |= 1;
     }
   /* Test on infinite numbers.  */
-  x = 1.0 / 0.0;
+  x = 1.0 / zero;
   {
     int exp;
     double y = frexp (x, &exp);
diff --git a/gl/m4/frexpl.m4 b/gl/m4/frexpl.m4
index 5843fa2f52..e9f9964dc8 100644
--- a/gl/m4/frexpl.m4
+++ b/gl/m4/frexpl.m4
@@ -1,4 +1,4 @@
-# frexpl.m4 serial 16
+# frexpl.m4 serial 17
 dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -9,7 +9,7 @@ AC_DEFUN([gl_FUNC_FREXPL],
   AC_REQUIRE([gl_MATH_H_DEFAULTS])
   dnl Check whether it's declared.
   dnl MacOS X 10.3 has frexpl() in libc but doesn't declare it in <math.h>.
-  AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [#include <math.h>])
+  AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [[#include <math.h>]])
   FREXPL_LIBM=
   if test $HAVE_DECL_FREXPL = 1; then
     gl_CHECK_FREXPL_NO_LIBM
@@ -58,7 +58,7 @@ AC_DEFUN([gl_FUNC_FREXPL_NO_LIBM],
   AC_REQUIRE([gl_MATH_H_DEFAULTS])
   dnl Check whether it's declared.
   dnl MacOS X 10.3 has frexpl() in libc but doesn't declare it in <math.h>.
-  AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [#include <math.h>])
+  AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [[#include <math.h>]])
   if test $HAVE_DECL_FREXPL = 1; then
     gl_CHECK_FREXPL_NO_LIBM
     if test $gl_cv_func_frexpl_no_libm = yes; then
diff --git a/gl/m4/getcwd.m4 b/gl/m4/getcwd.m4
index d3bbe597b3..f828cf340b 100644
--- a/gl/m4/getcwd.m4
+++ b/gl/m4/getcwd.m4
@@ -6,15 +6,20 @@
 # with or without modifications, as long as this notice is preserved.
 
 # Written by Paul Eggert.
-# serial 8
+# serial 9
 
 AC_DEFUN([gl_FUNC_GETCWD_NULL],
   [
    AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+   AC_CHECK_HEADERS_ONCE([unistd.h])
    AC_CACHE_CHECK([whether getcwd (NULL, 0) allocates memory for result],
      [gl_cv_func_getcwd_null],
      [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
-#        include <unistd.h>
+#        if HAVE_UNISTD_H
+#         include <unistd.h>
+#        else /* on Windows with MSVC */
+#         include <direct.h>
+#        endif
 #        ifndef getcwd
          char *getcwd ();
 #        endif
diff --git a/gl/m4/getpass.m4 b/gl/m4/getpass.m4
index 64cee1ea87..13e55f6832 100644
--- a/gl/m4/getpass.m4
+++ b/gl/m4/getpass.m4
@@ -1,4 +1,4 @@
-# getpass.m4 serial 13
+# getpass.m4 serial 14
 dnl Copyright (C) 2002-2003, 2005-2006, 2009-2011 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
@@ -45,10 +45,10 @@ AC_DEFUN([gl_PREREQ_GETPASS], [
   AC_CHECK_HEADERS_ONCE([stdio_ext.h termios.h])
   AC_CHECK_FUNCS_ONCE([__fsetlocking tcgetattr tcsetattr])
   AC_CHECK_DECLS([__fsetlocking],,,
-    [#include <stdio.h>
-     #if HAVE_STDIO_EXT_H
-      #include <stdio_ext.h>
-     #endif])
+    [[#include <stdio.h>
+      #if HAVE_STDIO_EXT_H
+       #include <stdio_ext.h>
+      #endif]])
   AC_CHECK_DECLS_ONCE([fflush_unlocked])
   AC_CHECK_DECLS_ONCE([flockfile])
   AC_CHECK_DECLS_ONCE([fputs_unlocked])
diff --git a/gl/m4/gnulib-comp.m4 b/gl/m4/gnulib-comp.m4
index 6a67b59fd7..0660eb76b4 100644
--- a/gl/m4/gnulib-comp.m4
+++ b/gl/m4/gnulib-comp.m4
@@ -40,6 +40,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module c-ctype:
   # Code from module c-ctype-tests:
   # Code from module clock-time:
+  # Code from module closedir:
   # Code from module crypto/hmac-md5:
   # Code from module crypto/hmac-md5-tests:
   # Code from module crypto/md5:
@@ -61,6 +62,9 @@ AC_DEFUN([gl_EARLY],
   # Code from module fcntl-h:
   # Code from module fcntl-h-tests:
   # Code from module fd-hook:
+  # Code from module fdopen-tests:
+  # Code from module fgetc-tests:
+  # Code from module filename:
   # Code from module float:
   # Code from module float-tests:
   # Code from module fpieee:
@@ -77,6 +81,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module fseeko-tests:
   # Code from module fseterr:
   # Code from module fseterr-tests:
+  # Code from module fstat-tests:
   # Code from module ftell:
   # Code from module ftell-tests:
   # Code from module ftello:
@@ -139,6 +144,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module mempcpy:
   # Code from module memxor:
   # Code from module minmax:
+  # Code from module msvc-inval:
   # Code from module multiarch:
   # Code from module netdb:
   # Code from module netdb-tests:
@@ -147,6 +153,9 @@ AC_DEFUN([gl_EARLY],
   # Code from module nocrash:
   # Code from module open:
   # Code from module open-tests:
+  # Code from module opendir:
+  # Code from module pathmax:
+  # Code from module pathmax-tests:
   # Code from module printf-frexp:
   # Code from module printf-frexp-tests:
   # Code from module printf-frexpl:
@@ -158,6 +167,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module rawmemchr-tests:
   # Code from module read-file:
   # Code from module read-file-tests:
+  # Code from module readdir:
   # Code from module realloc-posix:
   # Code from module same-inode:
   # Code from module scandir:
@@ -178,6 +188,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module sockets:
   # Code from module sockets-tests:
   # Code from module socklen:
+  # Code from module ssize_t:
   # Code from module stat:
   # Code from module stat-tests:
   # Code from module stdarg:
@@ -220,6 +231,8 @@ AC_DEFUN([gl_EARLY],
   # Code from module sys_stat-tests:
   # Code from module sys_time:
   # Code from module sys_time-tests:
+  # Code from module sys_types:
+  # Code from module sys_types-tests:
   # Code from module sys_uio:
   # Code from module sys_uio-tests:
   # Code from module sysexits:
@@ -290,6 +303,11 @@ m4_ifdef([AM_XGETTEXT_OPTION],
    AM_][XGETTEXT_OPTION([--flag=argp_failure:4:c-format])])
 gl_BYTESWAP
 gl_CLOCK_TIME
+gl_FUNC_CLOSEDIR
+if test $HAVE_CLOSEDIR = 0 || test $REPLACE_CLOSEDIR = 1; then
+  AC_LIBOBJ([closedir])
+fi
+gl_DIRENT_MODULE_INDICATOR([closedir])
 gl_MD5
 gl_DIRENT_H
 gl_DIRNAME_LGPL
@@ -453,6 +471,11 @@ gl_MULTIARCH
 gl_HEADER_NETDB
 gl_HEADER_NETINET_IN
 AC_PROG_MKDIR_P
+gl_FUNC_OPENDIR
+if test $HAVE_OPENDIR = 0 || test $REPLACE_OPENDIR = 1; then
+  AC_LIBOBJ([opendir])
+fi
+gl_DIRENT_MODULE_INDICATOR([opendir])
 gl_FUNC_PRINTF_FREXP
 gl_FUNC_PRINTF_FREXPL
 m4_divert_text([INIT_PREPARE], [gl_printf_safe=yes])
@@ -465,6 +488,11 @@ if test $HAVE_RAWMEMCHR = 0; then
 fi
 gl_STRING_MODULE_INDICATOR([rawmemchr])
 gl_PREREQ_READ_FILE
+gl_FUNC_READDIR
+if test $HAVE_READDIR = 0; then
+  AC_LIBOBJ([readdir])
+fi
+gl_DIRENT_MODULE_INDICATOR([readdir])
 gl_FUNC_REALLOC_POSIX
 if test $REPLACE_REALLOC = 1; then
   AC_LIBOBJ([realloc])
@@ -495,6 +523,7 @@ gl_MODULE_INDICATOR([snprintf])
 gl_SOCKETLIB
 gl_SOCKETS
 gl_TYPE_SOCKLEN_T
+gt_TYPE_SSIZE_T
 gl_STDARG_H
 AM_STDBOOL_H
 gl_STDDEF_H
@@ -559,6 +588,8 @@ gl_HEADER_SYS_STAT_H
 AC_PROG_MKDIR_P
 gl_HEADER_SYS_TIME_H
 AC_PROG_MKDIR_P
+gl_SYS_TYPES_H
+AC_PROG_MKDIR_P
 gl_HEADER_SYS_UIO
 AC_PROG_MKDIR_P
 gl_SYSEXITS
@@ -674,12 +705,17 @@ dnl Check for prerequisites for memory fence checks.
 gl_FUNC_MMAP_ANON
 AC_CHECK_HEADERS_ONCE([sys/mman.h])
 AC_CHECK_FUNCS_ONCE([mprotect])
+gl_MSVC_INVAL
+if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
+  AC_LIBOBJ([msvc-inval])
+fi
 gl_FUNC_OPEN
 if test $REPLACE_OPEN = 1; then
   AC_LIBOBJ([open])
   gl_PREREQ_OPEN
 fi
 gl_FCNTL_MODULE_INDICATOR([open])
+gl_PATHMAX
 gl_FUNC_PUTENV
 if test $REPLACE_PUTENV = 1; then
   AC_LIBOBJ([putenv])
@@ -847,6 +883,8 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/byteswap.in.h
   lib/c-ctype.c
   lib/c-ctype.h
+  lib/closedir.c
+  lib/dirent-private.h
   lib/dirent.in.h
   lib/dirname-lgpl.c
   lib/dirname.h
@@ -856,6 +894,7 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/error.h
   lib/fd-hook.c
   lib/fd-hook.h
+  lib/filename.h
   lib/float+.h
   lib/float.c
   lib/float.in.h
@@ -904,6 +943,7 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/minmax.h
   lib/netdb.in.h
   lib/netinet_in.in.h
+  lib/opendir.c
   lib/printf-args.c
   lib/printf-args.h
   lib/printf-frexp.c
@@ -918,6 +958,7 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/rawmemchr.valgrind
   lib/read-file.c
   lib/read-file.h
+  lib/readdir.c
   lib/realloc.c
   lib/scandir.c
   lib/signbitd.c
@@ -953,6 +994,7 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/sys_socket.in.h
   lib/sys_stat.in.h
   lib/sys_time.in.h
+  lib/sys_types.in.h
   lib/sys_uio.in.h
   lib/sysexits.in.h
   lib/time.in.h
@@ -979,6 +1021,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/argp.m4
   m4/byteswap.m4
   m4/clock_time.m4
+  m4/closedir.m4
   m4/codeset.m4
   m4/dirent_h.m4
   m4/dirname.m4
@@ -1054,12 +1097,15 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/minmax.m4
   m4/mmap-anon.m4
   m4/mode_t.m4
+  m4/msvc-inval.m4
   m4/multiarch.m4
   m4/netdb_h.m4
   m4/netinet_in_h.m4
   m4/nls.m4
   m4/nocrash.m4
   m4/open.m4
+  m4/opendir.m4
+  m4/pathmax.m4
   m4/po.m4
   m4/printf-frexp.m4
   m4/printf-frexpl.m4
@@ -1069,6 +1115,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/putenv.m4
   m4/rawmemchr.m4
   m4/read-file.m4
+  m4/readdir.m4
   m4/realloc.m4
   m4/scandir.m4
   m4/setenv.m4
@@ -1080,6 +1127,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/sockets.m4
   m4/socklen.m4
   m4/sockpfaf.m4
+  m4/ssize_t.m4
   m4/stat.m4
   m4/stdarg.m4
   m4/stdbool.m4
@@ -1101,6 +1149,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/sys_socket_h.m4
   m4/sys_stat_h.m4
   m4/sys_time_h.m4
+  m4/sys_types_h.m4
   m4/sys_uio_h.m4
   m4/sysexits.m4
   m4/threadlib.m4
@@ -1124,6 +1173,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/wchar_t.m4
   m4/wint_t.m4
   m4/xsize.m4
+  tests/infinity.h
   tests/init.sh
   tests/macros.h
   tests/minus-zero.h
@@ -1141,6 +1191,8 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/test-environ.c
   tests/test-errno.c
   tests/test-fcntl-h.c
+  tests/test-fdopen.c
+  tests/test-fgetc.c
   tests/test-float.c
   tests/test-fprintf-posix.h
   tests/test-frexp.c
@@ -1153,7 +1205,10 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/test-fseeko2.sh
   tests/test-fseeko3.c
   tests/test-fseeko3.sh
+  tests/test-fseeko4.c
+  tests/test-fseeko4.sh
   tests/test-fseterr.c
+  tests/test-fstat.c
   tests/test-ftell.c
   tests/test-ftell.sh
   tests/test-ftell2.sh
@@ -1162,6 +1217,8 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/test-ftello.sh
   tests/test-ftello2.sh
   tests/test-ftello3.c
+  tests/test-ftello4.c
+  tests/test-ftello4.sh
   tests/test-func.c
   tests/test-getcwd-lgpl.c
   tests/test-getdelim.c
@@ -1191,6 +1248,7 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/test-netinet_in.c
   tests/test-open.c
   tests/test-open.h
+  tests/test-pathmax.c
   tests/test-printf-frexp.c
   tests/test-printf-frexpl.c
   tests/test-printf-posix.h
@@ -1220,6 +1278,7 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/test-sys_socket.c
   tests/test-sys_stat.c
   tests/test-sys_time.c
+  tests/test-sys_types.c
   tests/test-sys_uio.c
   tests/test-sys_wait.h
   tests/test-sysexits.c
@@ -1253,7 +1312,10 @@ AC_DEFUN([gl_FILE_LIST], [
   tests=lib/malloca.c
   tests=lib/malloca.h
   tests=lib/malloca.valgrind
+  tests=lib/msvc-inval.c
+  tests=lib/msvc-inval.h
   tests=lib/open.c
+  tests=lib/pathmax.h
   tests=lib/putenv.c
   tests=lib/same-inode.h
   tests=lib/setenv.c
diff --git a/gl/m4/iconv.m4 b/gl/m4/iconv.m4
index 085cd068f5..98fcd64d31 100644
--- a/gl/m4/iconv.m4
+++ b/gl/m4/iconv.m4
@@ -1,4 +1,4 @@
-# iconv.m4 serial 17 (gettext-0.18.2)
+# iconv.m4 serial 18 (gettext-0.18.2)
 dnl Copyright (C) 2000-2002, 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -242,7 +242,7 @@ extern
 #ifdef __cplusplus
 "C"
 #endif
-#if defined(__STDC__) || defined(__cplusplus)
+#if defined(__STDC__) || defined(_MSC_VER) || defined(__cplusplus)
 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
 #else
 size_t iconv();
diff --git a/gl/m4/include_next.m4 b/gl/m4/include_next.m4
index ebf081a110..d5230ced8d 100644
--- a/gl/m4/include_next.m4
+++ b/gl/m4/include_next.m4
@@ -1,4 +1,4 @@
-# include_next.m4 serial 20
+# include_next.m4 serial 22
 dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -207,17 +207,36 @@ dnl until we can assume autoconf 2.64 or newer.
                  aix*) gl_absname_cpp="$ac_cpp -C" ;;
                  *)    gl_absname_cpp="$ac_cpp" ;;
                esac
+changequote(,)
+               case "$host_os" in
+                 mingw*)
+                   dnl For the sake of native Windows compilers (excluding gcc),
+                   dnl treat backslash as a directory separator, like /.
+                   dnl Actually, these compilers use a double-backslash as
+                   dnl directory separator, inside the
+                   dnl   # line "filename"
+                   dnl directives.
+                   gl_dirsep_regex='[/\\]'
+                   ;;
+                 *)
+                   gl_dirsep_regex='/'
+                   ;;
+               esac
+changequote([,])
+               gl_absolute_header_sed='\|'"${gl_dirsep_regex}"']m4_defn([gl_HEADER_NAME])[|{
+                   s|.*"\(.*'"${gl_dirsep_regex}"']m4_defn([gl_HEADER_NAME])[\)".*|\1|
+changequote(,)dnl
+                   s|^/[^/]|//&|
+changequote([,])dnl
+                   p
+                   q
+                 }'
                dnl eval is necessary to expand gl_absname_cpp.
                dnl Ultrix and Pyramid sh refuse to redirect output of eval,
                dnl so use subshell.
                AS_VAR_SET(gl_next_header,
                  ['"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
-                  sed -n '\#/]m4_defn([gl_HEADER_NAME])[#{
-                    s#.*"\(.*/]m4_defn([gl_HEADER_NAME])[\)".*#\1#
-                    s#^/[^/]#//&#
-                    p
-                    q
-                  }'`'"'])
+                      sed -n "$gl_absolute_header_sed"`'"'])
           m4_if([$2], [check],
             [else
                AS_VAR_SET(gl_next_header, ['<'gl_HEADER_NAME'>'])
diff --git a/gl/m4/ldexpl.m4 b/gl/m4/ldexpl.m4
index 76101f3360..4e419cf205 100644
--- a/gl/m4/ldexpl.m4
+++ b/gl/m4/ldexpl.m4
@@ -1,4 +1,4 @@
-# ldexpl.m4 serial 12
+# ldexpl.m4 serial 13
 dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -10,7 +10,7 @@ AC_DEFUN([gl_FUNC_LDEXPL],
   AC_REQUIRE([gl_FUNC_ISNANL]) dnl for ISNANL_LIBM
   dnl Check whether it's declared.
   dnl MacOS X 10.3 has ldexpl() in libc but doesn't declare it in <math.h>.
-  AC_CHECK_DECL([ldexpl], , [HAVE_DECL_LDEXPL=0], [#include <math.h>])
+  AC_CHECK_DECL([ldexpl], , [HAVE_DECL_LDEXPL=0], [[#include <math.h>]])
   LDEXPL_LIBM=
   if test $HAVE_DECL_LDEXPL = 1; then
     gl_CHECK_LDEXPL_NO_LIBM
diff --git a/gl/m4/lseek.m4 b/gl/m4/lseek.m4
index b45488445d..73c40698c2 100644
--- a/gl/m4/lseek.m4
+++ b/gl/m4/lseek.m4
@@ -1,4 +1,4 @@
-# lseek.m4 serial 7
+# lseek.m4 serial 8
 dnl Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -8,12 +8,18 @@ AC_DEFUN([gl_FUNC_LSEEK],
 [
   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
   AC_REQUIRE([AC_PROG_CC])
+  AC_CHECK_HEADERS_ONCE([unistd.h])
   AC_CACHE_CHECK([whether lseek detects pipes], [gl_cv_func_lseek_pipe],
     [if test $cross_compiling = no; then
        AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 #include <sys/types.h> /* for off_t */
 #include <stdio.h> /* for SEEK_CUR */
-#include <unistd.h>]], [[
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#else /* on Windows with MSVC */
+# include <io.h>
+#endif
+]], [[
   /* Exit with success only if stdin is seekable.  */
   return lseek (0, (off_t)0, SEEK_CUR) < 0;
 ]])],
diff --git a/gl/m4/msvc-inval.m4 b/gl/m4/msvc-inval.m4
new file mode 100644
index 0000000000..fb797f0556
--- /dev/null
+++ b/gl/m4/msvc-inval.m4
@@ -0,0 +1,19 @@
+# msvc-inval.m4 serial 1
+dnl Copyright (C) 2011 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_MSVC_INVAL],
+[
+  AC_CHECK_FUNCS_ONCE([_set_invalid_parameter_handler])
+  if test $ac_cv_func__set_invalid_parameter_handler = yes; then
+    HAVE_MSVC_INVALID_PARAMETER_HANDLER=1
+    AC_DEFINE([HAVE_MSVC_INVALID_PARAMETER_HANDLER], [1],
+      [Define to 1 on MSVC platforms that have the "invalid parameter handler"
+       concept.])
+  else
+    HAVE_MSVC_INVALID_PARAMETER_HANDLER=0
+  fi
+  AC_SUBST([HAVE_MSVC_INVALID_PARAMETER_HANDLER])
+])
diff --git a/gl/m4/nocrash.m4 b/gl/m4/nocrash.m4
index 0cc0d53ebf..60aad95295 100644
--- a/gl/m4/nocrash.m4
+++ b/gl/m4/nocrash.m4
@@ -1,4 +1,4 @@
-# nocrash.m4 serial 2
+# nocrash.m4 serial 3
 dnl Copyright (C) 2005, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -79,6 +79,34 @@ nocrash_init (void)
     }
   }
 }
+#elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+/* Avoid a crash on native Windows.  */
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <winerror.h>
+static LONG WINAPI
+exception_filter (EXCEPTION_POINTERS *ExceptionInfo)
+{
+  switch (ExceptionInfo->ExceptionRecord->ExceptionCode)
+    {
+    case EXCEPTION_ACCESS_VIOLATION:
+    case EXCEPTION_IN_PAGE_ERROR:
+    case EXCEPTION_STACK_OVERFLOW:
+    case EXCEPTION_GUARD_PAGE:
+    case EXCEPTION_PRIV_INSTRUCTION:
+    case EXCEPTION_ILLEGAL_INSTRUCTION:
+    case EXCEPTION_DATATYPE_MISALIGNMENT:
+    case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
+    case EXCEPTION_NONCONTINUABLE_EXCEPTION:
+      exit (1);
+    }
+  return EXCEPTION_CONTINUE_SEARCH;
+}
+static void
+nocrash_init (void)
+{
+  SetUnhandledExceptionFilter ((LPTOP_LEVEL_EXCEPTION_FILTER) exception_filter);
+}
 #else
 /* Avoid a crash on POSIX systems.  */
 #include <signal.h>
diff --git a/gl/m4/opendir.m4 b/gl/m4/opendir.m4
new file mode 100644
index 0000000000..fa315b9837
--- /dev/null
+++ b/gl/m4/opendir.m4
@@ -0,0 +1,23 @@
+# opendir.m4 serial 1
+dnl Copyright (C) 2011 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_FUNC_OPENDIR],
+[
+  AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
+
+  AC_CHECK_FUNCS([opendir])
+  if test $ac_cv_func_opendir = no; then
+    HAVE_OPENDIR=0
+  fi
+  dnl Replace opendir() for supporting the gnulib-defined fchdir() function,
+  dnl to keep fchdir's bookkeeping up-to-date.
+  m4_ifdef([gl_FUNC_FCHDIR], [
+    gl_TEST_FCHDIR
+    if test $HAVE_FCHDIR = 0; then
+      REPLACE_OPENDIR=1
+    fi
+  ])
+])
diff --git a/gl/m4/pathmax.m4 b/gl/m4/pathmax.m4
new file mode 100644
index 0000000000..0856722c39
--- /dev/null
+++ b/gl/m4/pathmax.m4
@@ -0,0 +1,12 @@
+# pathmax.m4 serial 9
+dnl Copyright (C) 2002-2003, 2005-2006, 2009-2011 Free Software Foundation,
+dnl 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_PATHMAX],
+[
+  dnl Prerequisites of lib/pathmax.h.
+  AC_CHECK_HEADERS_ONCE([sys/param.h])
+])
diff --git a/gl/m4/printf-frexpl.m4 b/gl/m4/printf-frexpl.m4
index 9c13d4e7f5..9b698c9be1 100644
--- a/gl/m4/printf-frexpl.m4
+++ b/gl/m4/printf-frexpl.m4
@@ -1,4 +1,4 @@
-# printf-frexpl.m4 serial 7
+# printf-frexpl.m4 serial 8
 dnl Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -27,7 +27,7 @@ AC_DEFUN([gl_FUNC_PRINTF_FREXPL],
       [Define if the frexpl function is available in libc.])
     dnl Also check whether it's declared.
     dnl MacOS X 10.3 has frexpl() in libc but doesn't declare it in <math.h>.
-    AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [#include <math.h>])
+    AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [[#include <math.h>]])
   fi
 
   gl_CHECK_LDEXPL_NO_LIBM
@@ -39,7 +39,7 @@ AC_DEFUN([gl_FUNC_PRINTF_FREXPL],
           [Define if the ldexpl function is available in libc.])
         dnl Also check whether it's declared.
         dnl MacOS X 10.3 has ldexpl() in libc but doesn't declare it in <math.h>.
-        AC_CHECK_DECL([ldexpl], , [HAVE_DECL_LDEXPL=0], [#include <math.h>])
+        AC_CHECK_DECL([ldexpl], , [HAVE_DECL_LDEXPL=0], [[#include <math.h>]])
         ;;
     esac
   fi
diff --git a/gl/m4/printf.m4 b/gl/m4/printf.m4
index 1538d23fd4..d046c11123 100644
--- a/gl/m4/printf.m4
+++ b/gl/m4/printf.m4
@@ -1,4 +1,4 @@
-# printf.m4 serial 43
+# printf.m4 serial 45
 dnl Copyright (C) 2003, 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -178,28 +178,28 @@ static double zero = 0.0;
 int main ()
 {
   int result = 0;
-  if (sprintf (buf, "%f", 1.0 / 0.0) < 0
+  if (sprintf (buf, "%f", 1.0 / zero) < 0
       || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
     result |= 1;
-  if (sprintf (buf, "%f", -1.0 / 0.0) < 0
+  if (sprintf (buf, "%f", -1.0 / zero) < 0
       || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
     result |= 1;
   if (sprintf (buf, "%f", zero / zero) < 0
       || !strisnan (buf, 0, strlen (buf)))
     result |= 2;
-  if (sprintf (buf, "%e", 1.0 / 0.0) < 0
+  if (sprintf (buf, "%e", 1.0 / zero) < 0
       || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
     result |= 4;
-  if (sprintf (buf, "%e", -1.0 / 0.0) < 0
+  if (sprintf (buf, "%e", -1.0 / zero) < 0
       || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
     result |= 4;
   if (sprintf (buf, "%e", zero / zero) < 0
       || !strisnan (buf, 0, strlen (buf)))
     result |= 8;
-  if (sprintf (buf, "%g", 1.0 / 0.0) < 0
+  if (sprintf (buf, "%g", 1.0 / zero) < 0
       || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
     result |= 16;
-  if (sprintf (buf, "%g", -1.0 / 0.0) < 0
+  if (sprintf (buf, "%g", -1.0 / zero) < 0
       || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
     result |= 16;
   if (sprintf (buf, "%g", zero / zero) < 0
@@ -294,28 +294,28 @@ int main ()
 {
   int result = 0;
   nocrash_init();
-  if (sprintf (buf, "%Lf", 1.0L / 0.0L) < 0
+  if (sprintf (buf, "%Lf", 1.0L / zeroL) < 0
       || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
     result |= 1;
-  if (sprintf (buf, "%Lf", -1.0L / 0.0L) < 0
+  if (sprintf (buf, "%Lf", -1.0L / zeroL) < 0
       || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
     result |= 1;
   if (sprintf (buf, "%Lf", zeroL / zeroL) < 0
       || !strisnan (buf, 0, strlen (buf)))
     result |= 1;
-  if (sprintf (buf, "%Le", 1.0L / 0.0L) < 0
+  if (sprintf (buf, "%Le", 1.0L / zeroL) < 0
       || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
     result |= 1;
-  if (sprintf (buf, "%Le", -1.0L / 0.0L) < 0
+  if (sprintf (buf, "%Le", -1.0L / zeroL) < 0
       || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
     result |= 1;
   if (sprintf (buf, "%Le", zeroL / zeroL) < 0
       || !strisnan (buf, 0, strlen (buf)))
     result |= 1;
-  if (sprintf (buf, "%Lg", 1.0L / 0.0L) < 0
+  if (sprintf (buf, "%Lg", 1.0L / zeroL) < 0
       || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0))
     result |= 1;
-  if (sprintf (buf, "%Lg", -1.0L / 0.0L) < 0
+  if (sprintf (buf, "%Lg", -1.0L / zeroL) < 0
       || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0))
     result |= 1;
   if (sprintf (buf, "%Lg", zeroL / zeroL) < 0
@@ -478,6 +478,7 @@ AC_DEFUN([gl_PRINTF_DIRECTIVE_A],
 #include <stdio.h>
 #include <string.h>
 static char buf[100];
+static double zero = 0.0;
 int main ()
 {
   int result = 0;
@@ -502,7 +503,7 @@ int main ()
     result |= 4;
   /* This catches a FreeBSD 6.1 bug.  See
      <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
-  if (sprintf (buf, "%010a %d", 1.0 / 0.0, 33, 44, 55) < 0
+  if (sprintf (buf, "%010a %d", 1.0 / zero, 33, 44, 55) < 0
       || buf[0] == '0')
     result |= 8;
   /* This catches a MacOS X 10.3.9 (Darwin 7.9) bug.  */
@@ -562,13 +563,14 @@ AC_DEFUN([gl_PRINTF_DIRECTIVE_F],
 #include <stdio.h>
 #include <string.h>
 static char buf[100];
+static double zero = 0.0;
 int main ()
 {
   int result = 0;
   if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0
       || strcmp (buf, "1234567.000000 33") != 0)
     result |= 1;
-  if (sprintf (buf, "%F", 1.0 / 0.0) < 0
+  if (sprintf (buf, "%F", 1.0 / zero) < 0
       || (strcmp (buf, "INF") != 0 && strcmp (buf, "INFINITY") != 0))
     result |= 2;
   /* This catches a Cygwin 1.5.x bug.  */
@@ -615,12 +617,27 @@ AC_DEFUN([gl_PRINTF_DIRECTIVE_N],
       AC_RUN_IFELSE(
         [AC_LANG_SOURCE([[
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
+#ifdef _MSC_VER
+/* See page about "Parameter Validation" on msdn.microsoft.com.  */
+static void cdecl
+invalid_parameter_handler (const wchar_t *expression,
+                           const wchar_t *function,
+                           const wchar_t *file, unsigned int line,
+                           uintptr_t dummy)
+{
+  exit (1);
+}
+#endif
 static char fmtstring[10];
 static char buf[100];
 int main ()
 {
   int count = -1;
+#ifdef _MSC_VER
+  _set_invalid_parameter_handler (invalid_parameter_handler);
+#endif
   /* Copy the format string.  Some systems (glibc with _FORTIFY_SOURCE=2)
      support %n in format strings in read-only memory but not in writable
      memory.  */
@@ -636,7 +653,8 @@ int main ()
         [
 changequote(,)dnl
          case "$host_os" in
-           *)     gl_cv_func_printf_directive_n="guessing yes";;
+           mingw*) gl_cv_func_printf_directive_n="guessing no";;
+           *)      gl_cv_func_printf_directive_n="guessing yes";;
          esac
 changequote([,])dnl
         ])
@@ -862,9 +880,10 @@ AC_DEFUN([gl_PRINTF_FLAG_ZERO],
 #include <stdio.h>
 #include <string.h>
 static char buf[100];
+static double zero = 0.0;
 int main ()
 {
-  if (sprintf (buf, "%010f", 1.0 / 0.0, 33, 44, 55) < 0
+  if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0
       || (strcmp (buf, "       inf") != 0
           && strcmp (buf, "  infinity") != 0))
     return 1;
@@ -1076,6 +1095,7 @@ AC_DEFUN([gl_SNPRINTF_TRUNCATION_C99],
 [
   AC_REQUIRE([AC_PROG_CC])
   AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+  AC_REQUIRE([gl_SNPRINTF_PRESENCE])
   AC_CACHE_CHECK([whether snprintf truncates the result as in C99],
     [gl_cv_func_snprintf_truncation_c99],
     [
@@ -1083,11 +1103,25 @@ AC_DEFUN([gl_SNPRINTF_TRUNCATION_C99],
         [AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <string.h>
+#if HAVE_SNPRINTF
+# define my_snprintf snprintf
+#else
+# include <stdarg.h>
+static int my_snprintf (char *buf, int size, const char *format, ...)
+{
+  va_list args;
+  int ret;
+  va_start (args, format);
+  ret = vsnprintf (buf, size, format, args);
+  va_end (args);
+  return ret;
+}
+#endif
 static char buf[100];
 int main ()
 {
   strcpy (buf, "ABCDEF");
-  snprintf (buf, 3, "%d %d", 4567, 89);
+  my_snprintf (buf, 3, "%d %d", 4567, 89);
   if (memcmp (buf, "45\0DEF", 6) != 0)
     return 1;
   return 0;
@@ -1157,6 +1191,7 @@ AC_DEFUN_ONCE([gl_SNPRINTF_RETVAL_C99],
 [
   AC_REQUIRE([AC_PROG_CC])
   AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+  AC_REQUIRE([gl_SNPRINTF_PRESENCE])
   AC_CACHE_CHECK([whether snprintf returns a byte count as in C99],
     [gl_cv_func_snprintf_retval_c99],
     [
@@ -1164,15 +1199,29 @@ AC_DEFUN_ONCE([gl_SNPRINTF_RETVAL_C99],
         [AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <string.h>
+#if HAVE_SNPRINTF
+# define my_snprintf snprintf
+#else
+# include <stdarg.h>
+static int my_snprintf (char *buf, int size, const char *format, ...)
+{
+  va_list args;
+  int ret;
+  va_start (args, format);
+  ret = vsnprintf (buf, size, format, args);
+  va_end (args);
+  return ret;
+}
+#endif
 static char buf[100];
 int main ()
 {
   strcpy (buf, "ABCDEF");
-  if (snprintf (buf, 3, "%d %d", 4567, 89) != 7)
+  if (my_snprintf (buf, 3, "%d %d", 4567, 89) != 7)
     return 1;
-  if (snprintf (buf, 0, "%d %d", 4567, 89) != 7)
+  if (my_snprintf (buf, 0, "%d %d", 4567, 89) != 7)
     return 2;
-  if (snprintf (NULL, 0, "%d %d", 4567, 89) != 7)
+  if (my_snprintf (NULL, 0, "%d %d", 4567, 89) != 7)
     return 3;
   return 0;
 }]])],
@@ -1221,6 +1270,7 @@ AC_DEFUN([gl_SNPRINTF_DIRECTIVE_N],
 [
   AC_REQUIRE([AC_PROG_CC])
   AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+  AC_REQUIRE([gl_SNPRINTF_PRESENCE])
   AC_CACHE_CHECK([whether snprintf fully supports the 'n' directive],
     [gl_cv_func_snprintf_directive_n],
     [
@@ -1228,6 +1278,20 @@ AC_DEFUN([gl_SNPRINTF_DIRECTIVE_N],
         [AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <string.h>
+#if HAVE_SNPRINTF
+# define my_snprintf snprintf
+#else
+# include <stdarg.h>
+static int my_snprintf (char *buf, int size, const char *format, ...)
+{
+  va_list args;
+  int ret;
+  va_start (args, format);
+  ret = vsnprintf (buf, size, format, args);
+  va_end (args);
+  return ret;
+}
+#endif
 static char fmtstring[10];
 static char buf[100];
 int main ()
@@ -1237,7 +1301,7 @@ int main ()
      support %n in format strings in read-only memory but not in writable
      memory.  */
   strcpy (fmtstring, "%d %n");
-  snprintf (buf, 4, fmtstring, 12345, &count, 33, 44, 55);
+  my_snprintf (buf, 4, fmtstring, 12345, &count, 33, 44, 55);
   if (count != 6)
     return 1;
   return 0;
@@ -1289,16 +1353,31 @@ dnl Result is gl_cv_func_snprintf_size1.
 AC_DEFUN([gl_SNPRINTF_SIZE1],
 [
   AC_REQUIRE([AC_PROG_CC])
+  AC_REQUIRE([gl_SNPRINTF_PRESENCE])
   AC_CACHE_CHECK([whether snprintf respects a size of 1],
     [gl_cv_func_snprintf_size1],
     [
       AC_RUN_IFELSE(
         [AC_LANG_SOURCE([[
 #include <stdio.h>
+#if HAVE_SNPRINTF
+# define my_snprintf snprintf
+#else
+# include <stdarg.h>
+static int my_snprintf (char *buf, int size, const char *format, ...)
+{
+  va_list args;
+  int ret;
+  va_start (args, format);
+  ret = vsnprintf (buf, size, format, args);
+  va_end (args);
+  return ret;
+}
+#endif
 int main()
 {
   static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' };
-  snprintf (buf, 1, "%d", 12345);
+  my_snprintf (buf, 1, "%d", 12345);
   return buf[1] != 'E';
 }]])],
         [gl_cv_func_snprintf_size1=yes],
@@ -1484,5 +1563,6 @@ dnl   NetBSD 3.0                     .  .  .  .  #  #  .  ?  #  #  ?  #  .  #  .
 dnl   Haiku                          .  .  .  #  #  #  .  #  .  .  .  .  .  ?  .  .  ?  .  .  .
 dnl   BeOS                           #  #  .  #  #  #  .  ?  #  .  ?  .  #  ?  .  .  ?  .  .  .
 dnl   old mingw / msvcrt             #  #  #  #  #  #  .  .  #  #  .  #  #  ?  .  #  #  #  .  .
+dnl   MSVC 9                         #  #  #  #  #  #  #  .  #  #  .  #  #  ?  #  #  #  #  .  .
 dnl   mingw 2009-2011                .  #  .  #  .  .  .  .  #  #  .  .  .  ?  .  .  .  .  .  .
 dnl   mingw-w64 2011                 #  #  #  #  #  #  .  .  #  #  .  #  #  ?  .  #  #  #  .  .
diff --git a/gl/m4/readdir.m4 b/gl/m4/readdir.m4
new file mode 100644
index 0000000000..cfeed08907
--- /dev/null
+++ b/gl/m4/readdir.m4
@@ -0,0 +1,15 @@
+# readdir.m4 serial 1
+dnl Copyright (C) 2011 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_FUNC_READDIR],
+[
+  AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
+
+  AC_CHECK_FUNCS([readdir])
+  if test $ac_cv_func_readdir = no; then
+    HAVE_READDIR=0
+  fi
+])
diff --git a/gl/m4/setenv.m4 b/gl/m4/setenv.m4
index 8927a6cac1..bc215a6d4d 100644
--- a/gl/m4/setenv.m4
+++ b/gl/m4/setenv.m4
@@ -1,4 +1,4 @@
-# setenv.m4 serial 24
+# setenv.m4 serial 25
 dnl Copyright (C) 2001-2004, 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -77,11 +77,7 @@ extern
 #ifdef __cplusplus
 "C"
 #endif
-#if defined(__STDC__) || defined(__cplusplus)
 int unsetenv (const char *name);
-#else
-int unsetenv();
-#endif
             ]],
             [[]])],
          [gt_cv_func_unsetenv_ret='int'],
diff --git a/gl/m4/signbit.m4 b/gl/m4/signbit.m4
index 696a9b6e1d..bbeb1f48c0 100644
--- a/gl/m4/signbit.m4
+++ b/gl/m4/signbit.m4
@@ -1,4 +1,4 @@
-# signbit.m4 serial 10
+# signbit.m4 serial 11
 dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -65,7 +65,7 @@ AC_DEFUN([gl_SIGNBIT],
       gl_LONG_DOUBLE_SIGN_LOCATION
       if test "$gl_cv_cc_float_signbit" = unknown; then
         dnl Test whether copysignf() is declared.
-        AC_CHECK_DECLS([copysignf], , , [#include <math.h>])
+        AC_CHECK_DECLS([copysignf], , , [[#include <math.h>]])
         if test "$ac_cv_have_decl_copysignf" = yes; then
           dnl Test whether copysignf() can be used without libm.
           AC_CACHE_CHECK([whether copysignf can be used without linking with libm],
@@ -87,7 +87,7 @@ AC_DEFUN([gl_SIGNBIT],
       fi
       if test "$gl_cv_cc_double_signbit" = unknown; then
         dnl Test whether copysign() is declared.
-        AC_CHECK_DECLS([copysign], , , [#include <math.h>])
+        AC_CHECK_DECLS([copysign], , , [[#include <math.h>]])
         if test "$ac_cv_have_decl_copysign" = yes; then
           dnl Test whether copysign() can be used without libm.
           AC_CACHE_CHECK([whether copysign can be used without linking with libm],
@@ -109,7 +109,7 @@ AC_DEFUN([gl_SIGNBIT],
       fi
       if test "$gl_cv_cc_long_double_signbit" = unknown; then
         dnl Test whether copysignl() is declared.
-        AC_CHECK_DECLS([copysignl], , , [#include <math.h>])
+        AC_CHECK_DECLS([copysignl], , , [[#include <math.h>]])
         if test "$ac_cv_have_decl_copysignl" = yes; then
           dnl Test whether copysignl() can be used without libm.
           AC_CACHE_CHECK([whether copysignl can be used without linking with libm],
diff --git a/gl/m4/sleep.m4 b/gl/m4/sleep.m4
index 37f19a9e4f..74362e49b5 100644
--- a/gl/m4/sleep.m4
+++ b/gl/m4/sleep.m4
@@ -1,4 +1,4 @@
-# sleep.m4 serial 5
+# sleep.m4 serial 6
 dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -12,7 +12,7 @@ AC_DEFUN([gl_FUNC_SLEEP],
   dnl _sleep() in MSVCRT. It has a different signature than POSIX sleep():
   dnl it takes the number of milliseconds as argument and returns void.
   dnl mingw does not declare this function.
-  AC_CHECK_DECLS([sleep], , , [#include <unistd.h>])
+  AC_CHECK_DECLS([sleep], , , [[#include <unistd.h>]])
   AC_CHECK_FUNCS_ONCE([sleep])
   if test $ac_cv_have_decl_sleep != yes; then
     HAVE_SLEEP=0
diff --git a/gl/m4/ssize_t.m4 b/gl/m4/ssize_t.m4
new file mode 100644
index 0000000000..d7127521eb
--- /dev/null
+++ b/gl/m4/ssize_t.m4
@@ -0,0 +1,23 @@
+# ssize_t.m4 serial 5 (gettext-0.18.2)
+dnl Copyright (C) 2001-2003, 2006, 2010-2011 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 From Bruno Haible.
+dnl Test whether ssize_t is defined.
+
+AC_DEFUN([gt_TYPE_SSIZE_T],
+[
+  AC_CACHE_CHECK([for ssize_t], [gt_cv_ssize_t],
+    [AC_COMPILE_IFELSE(
+       [AC_LANG_PROGRAM(
+          [[#include <sys/types.h>]],
+          [[int x = sizeof (ssize_t *) + sizeof (ssize_t);
+            return !x;]])],
+       [gt_cv_ssize_t=yes], [gt_cv_ssize_t=no])])
+  if test $gt_cv_ssize_t = no; then
+    AC_DEFINE([ssize_t], [int],
+              [Define as a signed type of the same size as size_t.])
+  fi
+])
diff --git a/gl/m4/stdint.m4 b/gl/m4/stdint.m4
index c75e95722a..092161c996 100644
--- a/gl/m4/stdint.m4
+++ b/gl/m4/stdint.m4
@@ -466,6 +466,14 @@ AC_DEFUN([gl_STDINT_TYPE_PROPERTIES],
   fi
   gl_INTEGER_TYPE_SUFFIX([sig_atomic_t wchar_t wint_t],
     [gl_STDINT_INCLUDES])
+
+  dnl If wint_t is smaller than 'int', it cannot satisfy the ISO C 99
+  dnl requirement that wint_t is "unchanged by default argument promotions".
+  dnl In this case gnulib's <wchar.h> and <wctype.h> override wint_t.
+  dnl Set the variable BITSIZEOF_WINT_T accordingly.
+  if test $BITSIZEOF_WINT_T -lt 32; then
+    BITSIZEOF_WINT_T=32
+  fi
 ])
 
 dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in.
diff --git a/gl/m4/stdio_h.m4 b/gl/m4/stdio_h.m4
index a8326f3c34..988e0255d8 100644
--- a/gl/m4/stdio_h.m4
+++ b/gl/m4/stdio_h.m4
@@ -1,4 +1,4 @@
-# stdio_h.m4 serial 37
+# stdio_h.m4 serial 39
 dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -74,7 +74,7 @@ AC_DEFUN([gl_STDIO_H],
   dnl corresponding gnulib module is not in use, and which is not
   dnl guaranteed by C89.
   gl_WARN_ON_USE_PREPARE([[#include <stdio.h>
-    ]], [dprintf fpurge fseeko ftello getdelim getline popen renameat
+    ]], [dprintf fpurge fseeko ftello getdelim getline pclose popen renameat
     snprintf tmpfile vdprintf vsnprintf])
 ])
 
@@ -115,6 +115,7 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
   GNULIB_GETS=0;                 AC_SUBST([GNULIB_GETS])
   GNULIB_OBSTACK_PRINTF=0;       AC_SUBST([GNULIB_OBSTACK_PRINTF])
   GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX])
+  GNULIB_PCLOSE=0;               AC_SUBST([GNULIB_PCLOSE])
   GNULIB_PERROR=0;               AC_SUBST([GNULIB_PERROR])
   GNULIB_POPEN=0;                AC_SUBST([GNULIB_POPEN])
   GNULIB_PRINTF=0;               AC_SUBST([GNULIB_PRINTF])
@@ -153,6 +154,8 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS],
   HAVE_DPRINTF=1;                AC_SUBST([HAVE_DPRINTF])
   HAVE_FSEEKO=1;                 AC_SUBST([HAVE_FSEEKO])
   HAVE_FTELLO=1;                 AC_SUBST([HAVE_FTELLO])
+  HAVE_PCLOSE=1;                 AC_SUBST([HAVE_PCLOSE])
+  HAVE_POPEN=1;                  AC_SUBST([HAVE_POPEN])
   HAVE_RENAMEAT=1;               AC_SUBST([HAVE_RENAMEAT])
   HAVE_VASPRINTF=1;              AC_SUBST([HAVE_VASPRINTF])
   HAVE_VDPRINTF=1;               AC_SUBST([HAVE_VDPRINTF])
diff --git a/gl/m4/strings_h.m4 b/gl/m4/strings_h.m4
index 12ca5eb4a2..481f8f334a 100644
--- a/gl/m4/strings_h.m4
+++ b/gl/m4/strings_h.m4
@@ -1,5 +1,5 @@
 # Configure a replacement for <strings.h>.
-# serial 5
+# serial 6
 
 # Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
@@ -16,7 +16,14 @@ AC_DEFUN([gl_HEADER_STRINGS_H],
 AC_DEFUN([gl_HEADER_STRINGS_H_BODY],
 [
   AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS])
+
   gl_CHECK_NEXT_HEADERS([strings.h])
+  if test $ac_cv_header_strings_h = yes; then
+    HAVE_STRINGS_H=1
+  else
+    HAVE_STRINGS_H=0
+  fi
+  AC_SUBST([HAVE_STRINGS_H])
 
   dnl Check for declarations of anything we want to poison if the
   dnl corresponding gnulib module is not in use.
diff --git a/gl/m4/sys_stat_h.m4 b/gl/m4/sys_stat_h.m4
index fc419129e9..a3e46ca965 100644
--- a/gl/m4/sys_stat_h.m4
+++ b/gl/m4/sys_stat_h.m4
@@ -1,4 +1,4 @@
-# sys_stat_h.m4 serial 24   -*- Autoconf -*-
+# sys_stat_h.m4 serial 25   -*- Autoconf -*-
 dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -19,6 +19,9 @@ AC_DEFUN([gl_HEADER_SYS_STAT_H],
 
   gl_CHECK_NEXT_HEADERS([sys/stat.h])
 
+  dnl Ensure the type mode_t gets defined.
+  AC_REQUIRE([AC_TYPE_MODE_T])
+
   dnl Define types that are supposed to be defined in <sys/types.h> or
   dnl <sys/stat.h>.
   AC_CHECK_TYPE([nlink_t], [],
diff --git a/gl/m4/sys_time_h.m4 b/gl/m4/sys_time_h.m4
index 3a3adc8c47..064e0deeb7 100644
--- a/gl/m4/sys_time_h.m4
+++ b/gl/m4/sys_time_h.m4
@@ -1,5 +1,5 @@
 # Configure a replacement for <sys/time.h>.
-# serial 6
+# serial 7
 
 # Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
@@ -27,6 +27,9 @@ AC_DEFUN([gl_HEADER_SYS_TIME_H_BODY],
     HAVE_SYS_TIME_H=0
   fi
 
+  dnl On native Windows with MSVC, 'struct timeval' is defined in <winsock2.h>
+  dnl only. So include that header in the list.
+  gl_PREREQ_SYS_H_WINSOCK2
   AC_CACHE_CHECK([for struct timeval], [gl_cv_sys_struct_timeval],
     [AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM(
@@ -34,6 +37,9 @@ AC_DEFUN([gl_HEADER_SYS_TIME_H_BODY],
              #include <sys/time.h>
             #endif
             #include <time.h>
+            #if HAVE_WINSOCK2_H
+            # include <winsock2.h>
+            #endif
           ]],
           [[static struct timeval x; x.tv_sec = x.tv_usec;]])],
        [gl_cv_sys_struct_timeval=yes],
diff --git a/gl/m4/sys_types_h.m4 b/gl/m4/sys_types_h.m4
new file mode 100644
index 0000000000..62113df492
--- /dev/null
+++ b/gl/m4/sys_types_h.m4
@@ -0,0 +1,21 @@
+# sys_types_h.m4 serial 2
+dnl Copyright (C) 2011 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_SYS_TYPES_H],
+[
+  AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS])
+  gl_NEXT_HEADERS([sys/types.h])
+
+  dnl Ensure the type pid_t gets defined.
+  AC_REQUIRE([AC_TYPE_PID_T])
+
+  dnl Ensure the type mode_t gets defined.
+  AC_REQUIRE([AC_TYPE_MODE_T])
+])
+
+AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS],
+[
+])
diff --git a/gl/m4/time_h.m4 b/gl/m4/time_h.m4
index 615da1cfd3..3454b23fa0 100644
--- a/gl/m4/time_h.m4
+++ b/gl/m4/time_h.m4
@@ -2,7 +2,7 @@
 
 # Copyright (C) 2000-2001, 2003-2007, 2009-2011 Free Software Foundation, Inc.
 
-# serial 4
+# serial 6
 
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/gl/m4/unistd_h.m4 b/gl/m4/unistd_h.m4
index fb6fe07726..720e0fd03b 100644
--- a/gl/m4/unistd_h.m4
+++ b/gl/m4/unistd_h.m4
@@ -1,4 +1,4 @@
-# unistd_h.m4 serial 56
+# unistd_h.m4 serial 59
 dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -21,9 +21,15 @@ AC_DEFUN([gl_UNISTD_H],
   fi
   AC_SUBST([HAVE_UNISTD_H])
 
+  dnl Ensure the type pid_t gets defined.
+  AC_REQUIRE([AC_TYPE_PID_T])
+
   dnl Check for declarations of anything we want to poison if the
   dnl corresponding gnulib module is not in use.
-  gl_WARN_ON_USE_PREPARE([[#include <unistd.h>
+  gl_WARN_ON_USE_PREPARE([[
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
 /* Some systems declare various items in the wrong headers.  */
 #if !(defined __GLIBC__ && !defined __UCLIBC__)
 # include <fcntl.h>
@@ -34,7 +40,7 @@ AC_DEFUN([gl_UNISTD_H],
 # endif
 #endif
     ]], [chown dup2 dup3 environ euidaccess faccessat fchdir fchownat
-    fsync ftruncate getcwd getdomainname getdtablesize getgroups
+    fdatasync fsync ftruncate getcwd getdomainname getdtablesize getgroups
     gethostname getlogin getlogin_r getpagesize getusershell setusershell
     endusershell group_member lchown link linkat lseek pipe pipe2 pread pwrite
     readlink readlinkat rmdir sleep symlink symlinkat ttyname_r unlink unlinkat
@@ -61,6 +67,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   GNULIB_FACCESSAT=0;            AC_SUBST([GNULIB_FACCESSAT])
   GNULIB_FCHDIR=0;               AC_SUBST([GNULIB_FCHDIR])
   GNULIB_FCHOWNAT=0;             AC_SUBST([GNULIB_FCHOWNAT])
+  GNULIB_FDATASYNC=0;            AC_SUBST([GNULIB_FDATASYNC])
   GNULIB_FSYNC=0;                AC_SUBST([GNULIB_FSYNC])
   GNULIB_FTRUNCATE=0;            AC_SUBST([GNULIB_FTRUNCATE])
   GNULIB_GETCWD=0;               AC_SUBST([GNULIB_GETCWD])
@@ -104,6 +111,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   HAVE_FACCESSAT=1;       AC_SUBST([HAVE_FACCESSAT])
   HAVE_FCHDIR=1;          AC_SUBST([HAVE_FCHDIR])
   HAVE_FCHOWNAT=1;        AC_SUBST([HAVE_FCHOWNAT])
+  HAVE_FDATASYNC=1;       AC_SUBST([HAVE_FDATASYNC])
   HAVE_FSYNC=1;           AC_SUBST([HAVE_FSYNC])
   HAVE_FTRUNCATE=1;       AC_SUBST([HAVE_FTRUNCATE])
   HAVE_GETDTABLESIZE=1;   AC_SUBST([HAVE_GETDTABLESIZE])
@@ -128,6 +136,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   HAVE_USLEEP=1;          AC_SUBST([HAVE_USLEEP])
   HAVE_DECL_ENVIRON=1;    AC_SUBST([HAVE_DECL_ENVIRON])
   HAVE_DECL_FCHDIR=1;     AC_SUBST([HAVE_DECL_FCHDIR])
+  HAVE_DECL_FDATASYNC=1;  AC_SUBST([HAVE_DECL_FDATASYNC])
   HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME])
   HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
   HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE])
diff --git a/gl/m4/vasnprintf.m4 b/gl/m4/vasnprintf.m4
index 32ea985b3f..749d708d9e 100644
--- a/gl/m4/vasnprintf.m4
+++ b/gl/m4/vasnprintf.m4
@@ -1,4 +1,4 @@
-# vasnprintf.m4 serial 32
+# vasnprintf.m4 serial 33
 dnl Copyright (C) 2002-2004, 2006-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -63,7 +63,7 @@ AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF],
   AC_CHECK_FUNCS([snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb])
   dnl Use the _snprintf function only if it is declared (because on NetBSD it
   dnl is defined as a weak alias of snprintf; we prefer to use the latter).
-  AC_CHECK_DECLS([_snprintf], , , [#include <stdio.h>])
+  AC_CHECK_DECLS([_snprintf], , , [[#include <stdio.h>]])
   dnl We can avoid a lot of code by assuming that snprintf's return value
   dnl conforms to ISO C99. So check that.
   AC_REQUIRE([gl_SNPRINTF_RETVAL_C99])
diff --git a/gl/math.in.h b/gl/math.in.h
index d6308cbb9d..afbc9cbd26 100644
--- a/gl/math.in.h
+++ b/gl/math.in.h
@@ -75,8 +75,9 @@ _GL_WARN_ON_USE (rpl_ ## func ## l, #func " is unportable - "       \
 #if !defined NAN || @REPLACE_NAN@
 # if !GNULIB_defined_NAN
 #  undef NAN
-  /* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0.  */
-#  ifdef __DECC
+  /* The Compaq (ex-DEC) C 6.4 compiler and the Microsoft MSVC 9 compiler
+     choke on the expression 0.0 / 0.0.  */
+#  if defined __DECC || defined _MSC_VER
 static float
 _NaN ()
 {
@@ -186,6 +187,7 @@ _GL_WARN_ON_USE (atanl, "atanl is unportable - "
 #if @GNULIB_CEILF@
 # if @REPLACE_CEILF@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef ceilf
 #   define ceilf rpl_ceilf
 #  endif
 _GL_FUNCDECL_RPL (ceilf, float, (float x));
@@ -221,6 +223,7 @@ _GL_CXXALIASWARN (ceil);
 #if @GNULIB_CEILL@
 # if @REPLACE_CEILL@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef ceill
 #   define ceill rpl_ceill
 #  endif
 _GL_FUNCDECL_RPL (ceill, long double, (long double x));
@@ -274,6 +277,7 @@ _GL_WARN_ON_USE (expl, "expl is unportable - "
 #if @GNULIB_FLOORF@
 # if @REPLACE_FLOORF@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef floorf
 #   define floorf rpl_floorf
 #  endif
 _GL_FUNCDECL_RPL (floorf, float, (float x));
@@ -309,6 +313,7 @@ _GL_CXXALIASWARN (floor);
 #if @GNULIB_FLOORL@
 # if @REPLACE_FLOORL@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef floorl
 #   define floorl rpl_floorl
 #  endif
 _GL_FUNCDECL_RPL (floorl, long double, (long double x));
@@ -338,6 +343,7 @@ _GL_WARN_ON_USE (floorl, "floorl is unportable - "
    Store exp in *EXPPTR and return mantissa.  */
 #if @GNULIB_FREXPL@ && @REPLACE_FREXPL@
 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#  undef frexpl
 #  define frexpl rpl_frexpl
 # endif
 _GL_FUNCDECL_RPL (frexpl, long double,
@@ -367,6 +373,7 @@ _GL_WARN_ON_USE (frexpl, "frexpl is unportable - "
 /* Return x * 2^exp.  */
 #if @GNULIB_LDEXPL@ && @REPLACE_LDEXPL@
 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#  undef ldexpl
 #  define ldexpl rpl_ldexpl
 # endif
 _GL_FUNCDECL_RPL (ldexpl, long double, (long double x, int exp));
diff --git a/gl/opendir.c b/gl/opendir.c
new file mode 100644
index 0000000000..06c611f2e1
--- /dev/null
+++ b/gl/opendir.c
@@ -0,0 +1,144 @@
+/* Start reading the entries of a directory.
+   Copyright (C) 2006-2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <dirent.h>
+
+#include <errno.h>
+
+#if HAVE_OPENDIR
+
+/* Override opendir(), to keep track of the open file descriptors.
+   Needed because there is a function dirfd().  */
+
+#else
+
+# include <stddef.h>
+# include <stdlib.h>
+
+# include "dirent-private.h"
+# include "filename.h"
+
+#endif
+
+DIR *
+opendir (const char *dir_name)
+{
+#if HAVE_OPENDIR
+# undef opendir
+  DIR *dirp;
+
+  dirp = opendir (dir_name);
+  if (dirp == NULL)
+    return NULL;
+
+#else
+
+  char dir_name_mask[MAX_PATH + 1 + 1 + 1];
+  int status;
+  HANDLE current;
+  WIN32_FIND_DATA entry;
+  struct gl_directory *dirp;
+
+  if (dir_name[0] == '\0')
+    {
+      errno = ENOENT;
+      return NULL;
+    }
+
+  /* Make the dir_name absolute, so that we continue reading the same
+     directory if the current directory changed between this opendir()
+     call and a subsequent rewinddir() call.  */
+  if (!GetFullPathName (dir_name, MAX_PATH, dir_name_mask, NULL))
+    {
+      errno = EINVAL;
+      return NULL;
+    }
+
+  /* Append the mask.
+     "*" and "*.*" appear to be equivalent.  */
+  {
+    char *p;
+
+    p = dir_name_mask + strlen (dir_name_mask);
+    if (p > dir_name_mask && !ISSLASH (p[-1]))
+      *p++ = '\\';
+    *p++ = '*';
+    *p = '\0';
+  }
+
+  /* Start searching the directory.  */
+  status = -1;
+  current = FindFirstFile (dir_name_mask, &entry);
+  if (current == INVALID_HANDLE_VALUE)
+    {
+      switch (GetLastError ())
+        {
+        case ERROR_FILE_NOT_FOUND:
+          status = -2;
+          break;
+        case ERROR_PATH_NOT_FOUND:
+          errno = ENOENT;
+          return NULL;
+        case ERROR_DIRECTORY:
+          errno = ENOTDIR;
+          return NULL;
+        case ERROR_ACCESS_DENIED:
+          errno = EACCES;
+          return NULL;
+        default:
+          errno = EIO;
+          return NULL;
+        }
+    }
+
+  /* Allocate the result.  */
+  dirp =
+    (struct gl_directory *)
+    malloc (offsetof (struct gl_directory, dir_name_mask[0])
+            + strlen (dir_name_mask) + 1);
+  if (dirp == NULL)
+    {
+      if (current != INVALID_HANDLE_VALUE)
+        FindClose (current);
+      errno = ENOMEM;
+      return NULL;
+    }
+  dirp->status = status;
+  dirp->current = current;
+  if (status == -1)
+    memcpy (&dirp->entry, &entry, sizeof (WIN32_FIND_DATA));
+  strcpy (dirp->dir_name_mask, dir_name_mask);
+
+#endif
+
+#if REPLACE_FCHDIR
+  {
+    int fd = dirfd (dirp);
+    if (0 <= fd && _gl_register_fd (fd, dir_name) != fd)
+      {
+        int saved_errno = errno;
+        closedir (dirp);
+        errno = saved_errno;
+        return NULL;
+      }
+  }
+#endif
+
+  return dirp;
+}
diff --git a/gl/readdir.c b/gl/readdir.c
new file mode 100644
index 0000000000..04858b0080
--- /dev/null
+++ b/gl/readdir.c
@@ -0,0 +1,98 @@
+/* Read the next entry of a directory.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <dirent.h>
+
+#include <errno.h>
+#include <stddef.h>
+
+#include "dirent-private.h"
+
+struct dirent *
+readdir (DIR *dirp)
+{
+  char type;
+  struct dirent *result;
+
+  /* There is no need to add code to produce entries for "." and "..".
+     According to the POSIX:2008 section "4.12 Pathname Resolution"
+     <http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap04.html>
+     "." and ".." are syntactic entities.
+     POSIX also says:
+       "If entries for dot or dot-dot exist, one entry shall be returned
+        for dot and one entry shall be returned for dot-dot; otherwise,
+        they shall not be returned."  */
+
+  switch (dirp->status)
+    {
+    case -2:
+      /* End of directory already reached.  */
+      return NULL;
+    case -1:
+      break;
+    case 0:
+      if (!FindNextFile (dirp->current, &dirp->entry))
+        {
+          switch (GetLastError ())
+            {
+            case ERROR_NO_MORE_FILES:
+              dirp->status = -2;
+              return NULL;
+            default:
+              errno = EIO;
+              return NULL;
+            }
+        }
+      break;
+    default:
+      errno = dirp->status;
+      return NULL;
+    }
+
+  dirp->status = 0;
+
+  if (dirp->entry.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+    type = DT_DIR;
+  else if (dirp->entry.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
+    type = DT_LNK;
+  else if ((dirp->entry.dwFileAttributes
+            & ~(FILE_ATTRIBUTE_READONLY
+                | FILE_ATTRIBUTE_HIDDEN
+                | FILE_ATTRIBUTE_SYSTEM
+                | FILE_ATTRIBUTE_ARCHIVE
+                | FILE_ATTRIBUTE_NORMAL
+                | FILE_ATTRIBUTE_TEMPORARY
+                | FILE_ATTRIBUTE_SPARSE_FILE
+                | FILE_ATTRIBUTE_COMPRESSED
+                | FILE_ATTRIBUTE_NOT_CONTENT_INDEXED
+                | FILE_ATTRIBUTE_ENCRYPTED)) == 0)
+    /* Devices like COM1, LPT1, NUL would also have the attributes 0x20 but
+       they cannot occur here.  */
+    type = DT_REG;
+  else
+    type = DT_UNKNOWN;
+
+  /* Reuse the memory of dirp->entry for the result.  */
+  result =
+    (struct dirent *)
+    ((char *) dirp->entry.cFileName - offsetof (struct dirent, d_name[0]));
+  result->d_type = type;
+
+  return result;
+}
diff --git a/gl/stdio.in.h b/gl/stdio.in.h
index 473c84ce3e..6917d254b3 100644
--- a/gl/stdio.in.h
+++ b/gl/stdio.in.h
@@ -750,6 +750,20 @@ _GL_CXXALIAS_SYS (obstack_vprintf, int,
 _GL_CXXALIASWARN (obstack_vprintf);
 #endif
 
+#if @GNULIB_PCLOSE@
+# if !@HAVE_PCLOSE@
+_GL_FUNCDECL_SYS (pclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (pclose, int, (FILE *stream));
+_GL_CXXALIASWARN (pclose);
+#elif defined GNULIB_POSIXCHECK
+# undef pclose
+# if HAVE_RAW_DECL_PCLOSE
+_GL_WARN_ON_USE (pclose, "popen is unportable - "
+                 "use gnulib module pclose for more portability");
+# endif
+#endif
+
 #if @GNULIB_PERROR@
 /* Print a message to standard error, describing the value of ERRNO,
    (if STRING is not NULL and not empty) prefixed with STRING and ": ",
@@ -781,6 +795,10 @@ _GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode)
                                  _GL_ARG_NONNULL ((1, 2)));
 _GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
 # else
+#  if !@HAVE_POPEN@
+_GL_FUNCDECL_SYS (popen, FILE *, (const char *cmd, const char *mode)
+                                 _GL_ARG_NONNULL ((1, 2)));
+#  endif
 _GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
 # endif
 _GL_CXXALIASWARN (popen);
diff --git a/gl/strings.in.h b/gl/strings.in.h
index 6c1577d146..42600b925a 100644
--- a/gl/strings.in.h
+++ b/gl/strings.in.h
@@ -30,7 +30,9 @@
 #endif
 
 /* The include_next requires a split double-inclusion guard.  */
-#@INCLUDE_NEXT@ @NEXT_STRINGS_H@
+#if @HAVE_STRINGS_H@
+# @INCLUDE_NEXT@ @NEXT_STRINGS_H@
+#endif
 
 #ifndef _@GUARD_PREFIX@_STRINGS_H
 #define _@GUARD_PREFIX@_STRINGS_H
diff --git a/gl/sys_stat.in.h b/gl/sys_stat.in.h
index 5acee705f8..43c15c3908 100644
--- a/gl/sys_stat.in.h
+++ b/gl/sys_stat.in.h
@@ -61,6 +61,12 @@
 # include <direct.h> /* mingw64 */
 #endif
 
+#ifndef S_IFIFO
+# ifdef _S_IFIFO
+#  define S_IFIFO _S_IFIFO
+# endif
+#endif
+
 #ifndef S_IFMT
 # define S_IFMT 0170000
 #endif
diff --git a/gl/sys_time.in.h b/gl/sys_time.in.h
index e61505823f..db4eeaef5f 100644
--- a/gl/sys_time.in.h
+++ b/gl/sys_time.in.h
@@ -40,6 +40,14 @@
 #  include <time.h>
 # endif
 
+/* On native Windows with MSVC:
+   Get the 'struct timeval' type.  */
+# if defined _MSC_VER && @HAVE_WINSOCK2_H@ && !defined _GL_INCLUDING_WINSOCK2_H
+#  define _GL_INCLUDING_WINSOCK2_H
+#  include <winsock2.h>
+#  undef _GL_INCLUDING_WINSOCK2_H
+# endif
+
 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
 
 /* The definition of _GL_ARG_NONNULL is copied here.  */
@@ -98,4 +106,95 @@ _GL_WARN_ON_USE (gettimeofday, "gettimeofday is unportable - "
 #  endif
 # endif
 
+/* Hide some function declarations from <winsock2.h>.  */
+
+# if defined _MSC_VER && @HAVE_WINSOCK2_H@
+#  if !defined _@GUARD_PREFIX@_UNISTD_H
+#   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#    undef close
+#    define close close_used_without_including_unistd_h
+#   else
+     _GL_WARN_ON_USE (close,
+                      "close() used without including <unistd.h>");
+#   endif
+#   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#    undef gethostname
+#    define gethostname gethostname_used_without_including_unistd_h
+#   else
+     _GL_WARN_ON_USE (gethostname,
+                      "gethostname() used without including <unistd.h>");
+#   endif
+#  endif
+#  if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
+#   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#    undef socket
+#    define socket              socket_used_without_including_sys_socket_h
+#    undef connect
+#    define connect             connect_used_without_including_sys_socket_h
+#    undef accept
+#    define accept              accept_used_without_including_sys_socket_h
+#    undef bind
+#    define bind                bind_used_without_including_sys_socket_h
+#    undef getpeername
+#    define getpeername         getpeername_used_without_including_sys_socket_h
+#    undef getsockname
+#    define getsockname         getsockname_used_without_including_sys_socket_h
+#    undef getsockopt
+#    define getsockopt          getsockopt_used_without_including_sys_socket_h
+#    undef listen
+#    define listen              listen_used_without_including_sys_socket_h
+#    undef recv
+#    define recv                recv_used_without_including_sys_socket_h
+#    undef send
+#    define send                send_used_without_including_sys_socket_h
+#    undef recvfrom
+#    define recvfrom            recvfrom_used_without_including_sys_socket_h
+#    undef sendto
+#    define sendto              sendto_used_without_including_sys_socket_h
+#    undef setsockopt
+#    define setsockopt          setsockopt_used_without_including_sys_socket_h
+#    undef shutdown
+#    define shutdown            shutdown_used_without_including_sys_socket_h
+#   else
+     _GL_WARN_ON_USE (socket,
+                      "socket() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (connect,
+                      "connect() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (accept,
+                      "accept() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (bind,
+                      "bind() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (getpeername,
+                      "getpeername() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (getsockname,
+                      "getsockname() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (getsockopt,
+                      "getsockopt() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (listen,
+                      "listen() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (recv,
+                      "recv() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (send,
+                      "send() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (recvfrom,
+                      "recvfrom() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (sendto,
+                      "sendto() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (setsockopt,
+                      "setsockopt() used without including <sys/socket.h>");
+     _GL_WARN_ON_USE (shutdown,
+                      "shutdown() used without including <sys/socket.h>");
+#   endif
+#  endif
+#  if !defined _@GUARD_PREFIX@_SYS_SELECT_H
+#   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#    undef select
+#    define select select_used_without_including_sys_select_h
+#   else
+     _GL_WARN_ON_USE (select,
+                      "select() used without including <sys/select.h>");
+#   endif
+#  endif
+# endif
+
 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */
diff --git a/gl/sys_types.in.h b/gl/sys_types.in.h
new file mode 100644
index 0000000000..63389de384
--- /dev/null
+++ b/gl/sys_types.in.h
@@ -0,0 +1,40 @@
+/* Provide a more complete sys/types.h.
+
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, 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 General Public License for more details.
+
+   You should have received a copy of the GNU 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.  */
+
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+@PRAGMA_COLUMNS@
+
+#ifndef _@GUARD_PREFIX@_SYS_TYPES_H
+
+/* The include_next requires a split double-inclusion guard.  */
+#@INCLUDE_NEXT@ @NEXT_SYS_TYPES_H@
+
+#ifndef _@GUARD_PREFIX@_SYS_TYPES_H
+#define _@GUARD_PREFIX@_SYS_TYPES_H
+
+/* MSVC 9 defines size_t in <stddef.h>, not in <sys/types.h>.  */
+/* But avoid namespace pollution on glibc systems.  */
+#if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) \
+    && ! defined __GLIBC__
+# include <stddef.h>
+#endif
+
+#endif /* _@GUARD_PREFIX@_SYS_TYPES_H */
+#endif /* _@GUARD_PREFIX@_SYS_TYPES_H */
diff --git a/gl/sys_uio.in.h b/gl/sys_uio.in.h
index de490902ce..6995e6cfd8 100644
--- a/gl/sys_uio.in.h
+++ b/gl/sys_uio.in.h
@@ -37,7 +37,7 @@
 
 #if !@HAVE_SYS_UIO_H@
 /* A platform that lacks <sys/uio.h>.  */
-/* Get 'ssize_t'.  */
+/* Get 'size_t' and 'ssize_t'.  */
 # include <sys/types.h>
 
 # ifdef __cplusplus
diff --git a/gl/tests/Makefile.am b/gl/tests/Makefile.am
index d385feb580..ba41456a89 100644
--- a/gl/tests/Makefile.am
+++ b/gl/tests/Makefile.am
@@ -198,6 +198,22 @@ EXTRA_DIST += test-fcntl-h.c
 
 ## end   gnulib module fcntl-h-tests
 
+## begin gnulib module fdopen-tests
+
+TESTS += test-fdopen
+check_PROGRAMS += test-fdopen
+EXTRA_DIST += test-fdopen.c signature.h macros.h
+
+## end   gnulib module fdopen-tests
+
+## begin gnulib module fgetc-tests
+
+TESTS += test-fgetc
+check_PROGRAMS += test-fgetc
+EXTRA_DIST += test-fgetc.c signature.h macros.h
+
+## end   gnulib module fgetc-tests
+
 ## begin gnulib module float-tests
 
 TESTS += test-float
@@ -211,7 +227,7 @@ EXTRA_DIST += test-float.c macros.h
 TESTS += test-frexp-nolibm
 check_PROGRAMS += test-frexp-nolibm
 test_frexp_nolibm_SOURCES = test-frexp.c
-EXTRA_DIST += test-frexp.c minus-zero.h nan.h signature.h macros.h
+EXTRA_DIST += test-frexp.c minus-zero.h infinity.h nan.h signature.h macros.h
 
 ## end   gnulib module frexp-nolibm-tests
 
@@ -220,7 +236,7 @@ EXTRA_DIST += test-frexp.c minus-zero.h nan.h signature.h macros.h
 TESTS += test-frexpl-nolibm
 check_PROGRAMS += test-frexpl-nolibm
 test_frexpl_nolibm_SOURCES = test-frexpl.c
-EXTRA_DIST += test-frexpl.c minus-zero.h nan.h signature.h macros.h
+EXTRA_DIST += test-frexpl.c minus-zero.h infinity.h nan.h signature.h macros.h
 
 ## end   gnulib module frexpl-nolibm-tests
 
@@ -234,9 +250,9 @@ EXTRA_DIST += test-fseek.c test-fseek.sh test-fseek2.sh signature.h macros.h
 
 ## begin gnulib module fseeko-tests
 
-TESTS += test-fseeko.sh test-fseeko2.sh test-fseeko3.sh
-check_PROGRAMS += test-fseeko test-fseeko3
-EXTRA_DIST += test-fseeko.c test-fseeko.sh test-fseeko2.sh test-fseeko3.c test-fseeko3.sh signature.h macros.h
+TESTS += test-fseeko.sh test-fseeko2.sh test-fseeko3.sh test-fseeko4.sh
+check_PROGRAMS += test-fseeko test-fseeko3 test-fseeko4
+EXTRA_DIST += test-fseeko.c test-fseeko.sh test-fseeko2.sh test-fseeko3.c test-fseeko3.sh test-fseeko4.c test-fseeko4.sh signature.h macros.h
 
 ## end   gnulib module fseeko-tests
 
@@ -249,6 +265,14 @@ EXTRA_DIST += test-fseterr.c
 
 ## end   gnulib module fseterr-tests
 
+## begin gnulib module fstat-tests
+
+TESTS += test-fstat
+check_PROGRAMS += test-fstat
+EXTRA_DIST += test-fstat.c signature.h macros.h
+
+## end   gnulib module fstat-tests
+
 ## begin gnulib module ftell-tests
 
 TESTS += test-ftell.sh test-ftell2.sh test-ftell3
@@ -260,10 +284,10 @@ EXTRA_DIST += test-ftell.c test-ftell.sh test-ftell2.sh test-ftell3.c signature.
 
 ## begin gnulib module ftello-tests
 
-TESTS += test-ftello.sh test-ftello2.sh test-ftello3
-check_PROGRAMS += test-ftello test-ftello3
+TESTS += test-ftello.sh test-ftello2.sh test-ftello3 test-ftello4.sh
+check_PROGRAMS += test-ftello test-ftello3 test-ftello4
 MOSTLYCLEANFILES += t-ftello3.tmp
-EXTRA_DIST += test-ftello.c test-ftello.sh test-ftello2.sh test-ftello3.c signature.h macros.h
+EXTRA_DIST += test-ftello.c test-ftello.sh test-ftello2.sh test-ftello3.c test-ftello4.c test-ftello4.sh signature.h macros.h
 
 ## end   gnulib module ftello-tests
 
@@ -415,7 +439,7 @@ EXTRA_DIST += test-inttypes.c
 TESTS += test-isnand-nolibm
 check_PROGRAMS += test-isnand-nolibm
 
-EXTRA_DIST += test-isnand-nolibm.c test-isnand.h minus-zero.h nan.h macros.h
+EXTRA_DIST += test-isnand-nolibm.c test-isnand.h minus-zero.h infinity.h nan.h macros.h
 
 ## end   gnulib module isnand-nolibm-tests
 
@@ -424,7 +448,7 @@ EXTRA_DIST += test-isnand-nolibm.c test-isnand.h minus-zero.h nan.h macros.h
 TESTS += test-isnanf-nolibm
 check_PROGRAMS += test-isnanf-nolibm
 
-EXTRA_DIST += test-isnanf-nolibm.c test-isnanf.h minus-zero.h nan.h macros.h
+EXTRA_DIST += test-isnanf-nolibm.c test-isnanf.h minus-zero.h infinity.h nan.h macros.h
 
 ## end   gnulib module isnanf-nolibm-tests
 
@@ -433,7 +457,7 @@ EXTRA_DIST += test-isnanf-nolibm.c test-isnanf.h minus-zero.h nan.h macros.h
 TESTS += test-isnanl-nolibm
 check_PROGRAMS += test-isnanl-nolibm
 
-EXTRA_DIST += test-isnanl-nolibm.c test-isnanl.h minus-zero.h nan.h macros.h
+EXTRA_DIST += test-isnanl-nolibm.c test-isnanl.h minus-zero.h infinity.h nan.h macros.h
 
 ## end   gnulib module isnanl-nolibm-tests
 
@@ -495,6 +519,15 @@ EXTRA_DIST += test-memchr.c zerosize-ptr.h signature.h macros.h
 
 ## end   gnulib module memchr-tests
 
+## begin gnulib module msvc-inval
+
+
+EXTRA_DIST += msvc-inval.c msvc-inval.h
+
+EXTRA_libtests_a_SOURCES += msvc-inval.c
+
+## end   gnulib module msvc-inval
+
 ## begin gnulib module netdb-tests
 
 TESTS += test-netdb
@@ -528,6 +561,21 @@ EXTRA_DIST += test-open.h test-open.c signature.h macros.h
 
 ## end   gnulib module open-tests
 
+## begin gnulib module pathmax
+
+
+EXTRA_DIST += pathmax.h
+
+## end   gnulib module pathmax
+
+## begin gnulib module pathmax-tests
+
+TESTS += test-pathmax
+check_PROGRAMS += test-pathmax
+EXTRA_DIST += test-pathmax.c
+
+## end   gnulib module pathmax-tests
+
 ## begin gnulib module printf-frexp-tests
 
 TESTS += test-printf-frexp
@@ -598,7 +646,7 @@ EXTRA_DIST += test-setenv.c signature.h macros.h
 TESTS += test-signbit
 check_PROGRAMS += test-signbit
 
-EXTRA_DIST += test-signbit.c minus-zero.h macros.h
+EXTRA_DIST += test-signbit.c minus-zero.h infinity.h macros.h
 
 ## end   gnulib module signbit-tests
 
@@ -855,6 +903,14 @@ EXTRA_DIST += test-sys_time.c
 
 ## end   gnulib module sys_time-tests
 
+## begin gnulib module sys_types-tests
+
+TESTS += test-sys_types
+check_PROGRAMS += test-sys_types
+EXTRA_DIST += test-sys_types.c
+
+## end   gnulib module sys_types-tests
+
 ## begin gnulib module sys_uio-tests
 
 TESTS += test-sys_uio
@@ -961,7 +1017,7 @@ EXTRA_DIST += test-version-etc.c test-version-etc.sh
 
 TESTS += test-vfprintf-posix.sh
 check_PROGRAMS += test-vfprintf-posix
-EXTRA_DIST += test-vfprintf-posix.sh test-vfprintf-posix.c test-fprintf-posix.h test-printf-posix.output signature.h macros.h
+EXTRA_DIST += test-vfprintf-posix.sh test-vfprintf-posix.c test-fprintf-posix.h test-printf-posix.output infinity.h signature.h macros.h
 
 ## end   gnulib module vfprintf-posix-tests
 
@@ -969,7 +1025,7 @@ EXTRA_DIST += test-vfprintf-posix.sh test-vfprintf-posix.c test-fprintf-posix.h
 
 TESTS += test-vprintf-posix.sh
 check_PROGRAMS += test-vprintf-posix
-EXTRA_DIST += test-vprintf-posix.sh test-vprintf-posix.c test-printf-posix.h test-printf-posix.output signature.h macros.h
+EXTRA_DIST += test-vprintf-posix.sh test-vprintf-posix.c test-printf-posix.h test-printf-posix.output infinity.h signature.h macros.h
 
 ## end   gnulib module vprintf-posix-tests
 
diff --git a/gl/tests/dup2.c b/gl/tests/dup2.c
index e00dc7b2e3..234bdfe50b 100644
--- a/gl/tests/dup2.c
+++ b/gl/tests/dup2.c
@@ -31,6 +31,8 @@
 # include <windows.h>
 #endif
 
+#include "msvc-inval.h"
+
 #if HAVE_DUP2
 
 # undef dup2
@@ -45,7 +47,19 @@ rpl_dup2 (int fd, int desired_fd)
      future dup2 calls will hang.  */
   if (fd == desired_fd)
     {
-      if ((HANDLE) _get_osfhandle (fd) == INVALID_HANDLE_VALUE)
+      HANDLE handle;
+
+      TRY_MSVC_INVAL
+        {
+          handle = (HANDLE) _get_osfhandle (fd);
+        }
+      CATCH_MSVC_INVAL
+        {
+          handle = INVALID_HANDLE_VALUE;
+        }
+      DONE_MSVC_INVAL;
+
+      if (handle == INVALID_HANDLE_VALUE)
         {
           errno = EBADF;
           return -1;
@@ -64,7 +78,18 @@ rpl_dup2 (int fd, int desired_fd)
   if (fd == desired_fd)
     return fcntl (fd, F_GETFL) == -1 ? -1 : fd;
 # endif
-  result = dup2 (fd, desired_fd);
+
+  TRY_MSVC_INVAL
+    {
+      result = dup2 (fd, desired_fd);
+    }
+  CATCH_MSVC_INVAL
+    {
+      result = -1;
+      errno = EBADF;
+    }
+  DONE_MSVC_INVAL;
+
 # ifdef __linux__
   /* Correct a Linux return value.
      <http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.30.y.git;a=commitdiff;h=2b79bc4f7ebbd5af3c8b867968f9f15602d5f802>
diff --git a/gl/tests/infinity.h b/gl/tests/infinity.h
new file mode 100644
index 0000000000..19a687301b
--- /dev/null
+++ b/gl/tests/infinity.h
@@ -0,0 +1,60 @@
+/* Macros for infinity.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+
+/* Infinityf () returns a 'float' +Infinity.  */
+
+/* The Microsoft MSVC 9 compiler chokes on the expression 1.0f / 0.0f.  */
+#if defined _MSC_VER
+static float
+Infinityf ()
+{
+  static float zero = 0.0f;
+  return 1.0f / zero;
+}
+#else
+# define Infinityf() (1.0f / 0.0f)
+#endif
+
+
+/* Infinityd () returns a 'double' +Infinity.  */
+
+/* The Microsoft MSVC 9 compiler chokes on the expression 1.0 / 0.0.  */
+#if defined _MSC_VER
+static double
+Infinityd ()
+{
+  static double zero = 0.0;
+  return 1.0 / zero;
+}
+#else
+# define Infinityd() (1.0 / 0.0)
+#endif
+
+
+/* Infinityl () returns a 'long double' +Infinity.  */
+
+/* The Microsoft MSVC 9 compiler chokes on the expression 1.0L / 0.0L.  */
+#if defined _MSC_VER
+static double
+Infinityl ()
+{
+  static long double zero = 0.0L;
+  return 1.0L / zero;
+}
+#else
+# define Infinityl() (1.0L / 0.0L)
+#endif
diff --git a/gl/tests/init.sh b/gl/tests/init.sh
index e6f5f1c42c..373d9d4fe7 100644
--- a/gl/tests/init.sh
+++ b/gl/tests/init.sh
@@ -74,7 +74,20 @@ Exit () { set +e; (exit $1); exit $1; }
 # the reason for skip/failure to console, rather than to the .log files.
 : ${stderr_fileno_=2}
 
-warn_ () { echo "$@" 1>&$stderr_fileno_; }
+# Note that correct expansion of "$*" depends on IFS starting with ' '.
+# Always write the full diagnostic to stderr.
+# When stderr_fileno_ is not 2, also emit the first line of the
+# diagnostic to that file descriptor.
+warn_ ()
+{
+  # If IFS does not start with ' ', set it and emit the warning in a subshell.
+  case $IFS in
+    ' '*) printf '%s\n' "$*" >&2
+          test $stderr_fileno_ = 2 \
+            || { printf '%s\n' "$*" | sed 1q >&$stderr_fileno_ ; } ;;
+    *) (IFS=' '; warn_ "$@");;
+  esac
+}
 fail_ () { warn_ "$ME_: failed test: $@"; Exit 1; }
 skip_ () { warn_ "$ME_: skipped test: $@"; Exit 77; }
 fatal_ () { warn_ "$ME_: hard error: $@"; Exit 99; }
diff --git a/gl/tests/msvc-inval.c b/gl/tests/msvc-inval.c
new file mode 100644
index 0000000000..cff07960de
--- /dev/null
+++ b/gl/tests/msvc-inval.c
@@ -0,0 +1,69 @@
+/* Invalid parameter handler for MSVC runtime libraries.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, 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 General Public License for more details.
+
+   You should have received a copy of the GNU 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.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "msvc-inval.h"
+
+#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
+
+# ifdef STATUS_GNULIB_INVALID_PARAMETER
+
+/* Get declarations of the Win32 API functions.  */
+#  define WIN32_LEAN_AND_MEAN
+#  include <windows.h>
+
+static void cdecl
+gl_msvc_invalid_parameter_handler (const wchar_t *expression,
+                                   const wchar_t *function,
+                                   const wchar_t *file,
+                                   unsigned int line,
+                                   uintptr_t dummy)
+{
+  RaiseException (STATUS_GNULIB_INVALID_PARAMETER, 0, 0, NULL);
+}
+
+static int gl_msvc_inval_initialized /* = 0 */;
+
+void
+gl_msvc_inval_ensure_handler (void)
+{
+  if (gl_msvc_inval_initialized == 0)
+    {
+      _set_invalid_parameter_handler (gl_msvc_invalid_parameter_handler);
+      gl_msvc_inval_initialized = 1;
+    }
+}
+
+# else
+
+jmp_buf gl_msvc_inval_restart;
+
+void cdecl
+gl_msvc_invalid_parameter_handler (const wchar_t *expression,
+                                   const wchar_t *function,
+                                   const wchar_t *file,
+                                   unsigned int line,
+                                   uintptr_t dummy)
+{
+  longjmp (gl_msvc_inval_restart, 1);
+}
+
+# endif
+
+#endif
diff --git a/gl/tests/msvc-inval.h b/gl/tests/msvc-inval.h
new file mode 100644
index 0000000000..00d3a1e96c
--- /dev/null
+++ b/gl/tests/msvc-inval.h
@@ -0,0 +1,167 @@
+/* Invalid parameter handler for MSVC runtime libraries.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, 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 General Public License for more details.
+
+   You should have received a copy of the GNU 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 _MSVC_INVAL_H
+#define _MSVC_INVAL_H
+
+/* With MSVC runtime libraries with the "invalid parameter handler" concept,
+   functions like fprintf(), dup2(), or close() crash when the caller passes
+   an invalid argument.  But POSIX wants error codes (such as EINVAL or EBADF)
+   instead.
+   This file defines macros that turn such an invalid parameter notification
+   into a non-local exit.  An error code can then be produced at the target
+   of this exit.  You can thus write code like
+
+     TRY_MSVC_INVAL
+       {
+         <Code that can trigger an invalid parameter notification
+          but does not do 'return', 'break', 'continue', nor 'goto'.>
+       }
+     CATCH_MSVC_INVAL
+       {
+         <Code that handles an invalid parameter notification
+          but does not do 'return', 'break', 'continue', nor 'goto'.>
+       }
+     DONE_MSVC_INVAL;
+
+   This entire block expands to a single statement.
+ */
+
+#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
+/* A native Windows platform with the "invalid parameter handler" concept.  */
+
+/* Get _invalid_parameter_handler type and _set_invalid_parameter_handler
+   declaration.  */
+#include <stdlib.h>
+
+# if defined _MSC_VER
+/* A compiler that supports __try/__except, as described in the page
+   "try-except statement" on microsoft.com
+   <http://msdn.microsoft.com/en-us/library/s58ftw19.aspx>.
+   With __try/__except, we can use the multithread-safe exception handling.  */
+
+/* Gnulib can define its own status codes, as described in the page
+   "Raising Software Exceptions" on microsoft.com
+   <http://msdn.microsoft.com/en-us/library/het71c37.aspx>.
+   Our status codes are composed of
+     - 0xE0000000, mandatory for all user-defined status codes,
+     - 0x474E550, a API identifier ("GNU"),
+     - 0, 1, 2, ..., used to distinguish different status codes from the
+       same API.  */
+#  define STATUS_GNULIB_INVALID_PARAMETER (0xE0000000 + 0x474E550 + 0)
+
+#  ifdef __cplusplus
+extern "C" {
+#  endif
+
+/* Ensure that the invalid parameter handler in installed that raises a
+   software exception with code STATUS_GNULIB_INVALID_PARAMETER.
+   Because we assume no other part of the program installs a different
+   invalid parameter handler, this solution is multithread-safe.  */
+extern void gl_msvc_inval_ensure_handler (void);
+
+#  ifdef __cplusplus
+}
+#  endif
+
+#  define TRY_MSVC_INVAL \
+     do                                                                        \
+       {                                                                       \
+         gl_msvc_inval_ensure_handler ();                                      \
+         __try
+#  define CATCH_MSVC_INVAL \
+         __except (GetExceptionCode () == STATUS_GNULIB_INVALID_PARAMETER      \
+                   ? EXCEPTION_EXECUTE_HANDLER                                 \
+                   : EXCEPTION_CONTINUE_SEARCH)
+#  define DONE_MSVC_INVAL \
+       }                                                                       \
+     while (0)
+
+# else
+/* Any compiler.
+   We can only use setjmp/longjmp.
+   Unfortunately, this is *not* multithread-safe.  */
+
+#  include <setjmp.h>
+
+#  ifdef __cplusplus
+extern "C" {
+#  endif
+
+/* The restart that will resume execution at the code between
+   CATCH_MSVC_INVAL and DONE_MSVC_INVAL.  It is enabled only between
+   TRY_MSVC_INVAL and CATCH_MSVC_INVAL.  */
+extern jmp_buf gl_msvc_inval_restart;
+
+/* The invalid parameter handler that unwinds the stack up to the
+   gl_msvc_inval_restart.  It is enabled only between TRY_MSVC_INVAL
+   and CATCH_MSVC_INVAL.  */
+extern void cdecl gl_msvc_invalid_parameter_handler (const wchar_t *expression,
+                                                     const wchar_t *function,
+                                                     const wchar_t *file,
+                                                     unsigned int line,
+                                                     uintptr_t dummy);
+
+#  ifdef __cplusplus
+}
+#  endif
+
+#  define TRY_MSVC_INVAL \
+     do                                                                        \
+       {                                                                       \
+         _invalid_parameter_handler orig_handler;                              \
+         /* First, initialize gl_msvc_inval_restart.  */                       \
+         if (setjmp (gl_msvc_inval_restart) == 0)                              \
+           {                                                                   \
+             /* Then, enable gl_msvc_invalid_parameter_handler.  */            \
+             orig_handler =                                                    \
+               _set_invalid_parameter_handler (gl_msvc_invalid_parameter_handler);
+#  define CATCH_MSVC_INVAL \
+             /* Execution completed.                                           \
+                Disable gl_msvc_invalid_parameter_handler.  */                 \
+             _set_invalid_parameter_handler (orig_handler);                    \
+           }                                                                   \
+         else                                                                  \
+           {                                                                   \
+             /* Execution triggered an invalid parameter notification.         \
+                Disable gl_msvc_invalid_parameter_handler.  */                 \
+             _set_invalid_parameter_handler (orig_handler);
+#  define DONE_MSVC_INVAL \
+           }                                                                   \
+       }                                                                       \
+     while (0)
+
+# endif
+
+#else
+/* A platform that does not need to the invalid parameter handler.  */
+
+/* The braces here avoid GCC warnings like
+   "warning: suggest explicit braces to avoid ambiguous `else'".  */
+# define TRY_MSVC_INVAL \
+    do                                                                         \
+      {                                                                        \
+        if (1)
+# define CATCH_MSVC_INVAL \
+        else
+# define DONE_MSVC_INVAL \
+      }                                                                        \
+    while (0)
+
+#endif
+
+#endif /* _MSVC_INVAL_H */
diff --git a/gl/tests/nan.h b/gl/tests/nan.h
index 5e1c0c3798..eb5fd95931 100644
--- a/gl/tests/nan.h
+++ b/gl/tests/nan.h
@@ -17,8 +17,9 @@
 
 /* NaNf () returns a 'float' not-a-number.  */
 
-/* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0.  */
-#ifdef __DECC
+/* The Compaq (ex-DEC) C 6.4 compiler and the Microsoft MSVC 9 compiler choke
+   on the expression 0.0 / 0.0.  */
+#if defined __DECC || defined _MSC_VER
 static float
 NaNf ()
 {
@@ -32,8 +33,9 @@ NaNf ()
 
 /* NaNd () returns a 'double' not-a-number.  */
 
-/* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0.  */
-#ifdef __DECC
+/* The Compaq (ex-DEC) C 6.4 compiler and the Microsoft MSVC 9 compiler choke
+   on the expression 0.0 / 0.0.  */
+#if defined __DECC || defined _MSC_VER
 static double
 NaNd ()
 {
@@ -48,13 +50,21 @@ NaNd ()
 /* NaNl () returns a 'long double' not-a-number.  */
 
 /* On Irix 6.5, gcc 3.4.3 can't compute compile-time NaN, and needs the
-   runtime type conversion.  */
+   runtime type conversion.
+   The Microsoft MSVC 9 compiler chokes on the expression 0.0L / 0.0L.  */
 #ifdef __sgi
 static long double NaNl ()
 {
   double zero = 0.0;
   return zero / zero;
 }
+#elif defined _MSC_VER
+static long double
+NaNl ()
+{
+  static long double zero = 0.0L;
+  return zero / zero;
+}
 #else
 # define NaNl() (0.0L / 0.0L)
 #endif
diff --git a/gl/tests/pathmax.h b/gl/tests/pathmax.h
new file mode 100644
index 0000000000..c47618a1b6
--- /dev/null
+++ b/gl/tests/pathmax.h
@@ -0,0 +1,84 @@
+/* Define PATH_MAX somehow.  Requires sys/types.h.
+   Copyright (C) 1992, 1999, 2001, 2003, 2005, 2009-2011 Free Software
+   Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, 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 General Public License for more details.
+
+   You should have received a copy of the GNU 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 _PATHMAX_H
+# define _PATHMAX_H
+
+/* POSIX:2008 defines PATH_MAX to be the maximum number of bytes in a filename,
+   including the terminating NUL byte.
+   <http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/limits.h.html>
+   PATH_MAX is not defined on systems which have no limit on filename length,
+   such as GNU/Hurd.
+
+   This file does *not* define PATH_MAX always.  Programs that use this file
+   can handle the GNU/Hurd case in several ways:
+     - Either with a package-wide handling, or with a per-file handling,
+     - Either through a
+         #ifdef PATH_MAX
+       or through a fallback like
+         #ifndef PATH_MAX
+         # define PATH_MAX 8192
+         #endif
+       or through a fallback like
+         #ifndef PATH_MAX
+         # define PATH_MAX pathconf ("/", _PC_PATH_MAX)
+         #endif
+ */
+
+# include <unistd.h>
+
+# include <limits.h>
+
+# ifndef _POSIX_PATH_MAX
+#  define _POSIX_PATH_MAX 256
+# endif
+
+/* Don't include sys/param.h if it already has been.  */
+# if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN
+#  include <sys/param.h>
+# endif
+
+# if !defined PATH_MAX && defined MAXPATHLEN
+#  define PATH_MAX MAXPATHLEN
+# endif
+
+# ifdef __hpux
+/* On HP-UX, PATH_MAX designates the maximum number of bytes in a filename,
+   *not* including the terminating NUL byte, and is set to 1023.
+   Additionally, when _XOPEN_SOURCE is defined to 500 or more, PATH_MAX is
+   not defined at all any more.  */
+#  undef PATH_MAX
+#  define PATH_MAX 1024
+# endif
+
+# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+/* The page "Naming Files, Paths, and Namespaces" on msdn.microsoft.com,
+   section "Maximum Path Length Limitation",
+   <http://msdn.microsoft.com/en-us/library/aa365247(v=vs.85).aspx#maxpath>
+   explains that the maximum size of a filename, including the terminating
+   NUL byte, is 260 = 3 + 256 + 1.
+   This is the same value as
+     - FILENAME_MAX in <stdio.h>,
+     - _MAX_PATH in <stdlib.h>,
+     - MAX_PATH in <windef.h>.
+   Undefine the original value, because mingw's <limits.h> gets it wrong.  */
+#  undef PATH_MAX
+#  define PATH_MAX 260
+# endif
+
+#endif /* _PATHMAX_H */
diff --git a/gl/tests/putenv.c b/gl/tests/putenv.c
index 68e5fec31b..3c332791bb 100644
--- a/gl/tests/putenv.c
+++ b/gl/tests/putenv.c
@@ -34,10 +34,12 @@
 #include <string.h>
 #include <unistd.h>
 
-#if HAVE_GNU_LD
+#if _LIBC
+# if HAVE_GNU_LD
 # define environ __environ
-#else
+# else
 extern char **environ;
+# endif
 #endif
 
 #if _LIBC
diff --git a/gl/tests/stat.c b/gl/tests/stat.c
index 1002f161bf..1397aa9329 100644
--- a/gl/tests/stat.c
+++ b/gl/tests/stat.c
@@ -46,6 +46,15 @@ orig_stat (const char *filename, struct stat *buf)
 #include "dosname.h"
 #include "verify.h"
 
+#if REPLACE_FUNC_STAT_DIR
+# include "pathmax.h"
+  /* The only known systems where REPLACE_FUNC_STAT_DIR is needed also
+     have a constant PATH_MAX.  */
+# ifndef PATH_MAX
+#  error "Please port this replacement to your platform"
+# endif
+#endif
+
 /* Store information about NAME into ST.  Work around bugs with
    trailing slashes.  Mingw has other bugs (such as st_ino always
    being 0 on success) which this wrapper does not work around.  But
@@ -70,11 +79,6 @@ rpl_stat (char const *name, struct stat *st)
     }
 #endif /* REPLACE_FUNC_STAT_FILE */
 #if REPLACE_FUNC_STAT_DIR
-  /* The only known systems where REPLACE_FUNC_STAT_DIR is needed also
-     have a constant PATH_MAX.  */
-# ifndef PATH_MAX
-#  error "Please port this replacement to your platform"
-# endif
 
   if (result == -1 && errno == ENOENT)
     {
diff --git a/gl/tests/test-dup2.c b/gl/tests/test-dup2.c
index e2ad88bcca..37454e965c 100644
--- a/gl/tests/test-dup2.c
+++ b/gl/tests/test-dup2.c
@@ -121,6 +121,9 @@ main (void)
   ASSERT (dup2 (-1, fd) == -1);
   ASSERT (errno == EBADF);
   errno = 0;
+  ASSERT (dup2 (99, fd) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
   ASSERT (dup2 (AT_FDCWD, fd) == -1);
   ASSERT (errno == EBADF);
   ASSERT (is_open (fd));
diff --git a/gl/tests/test-fcntl-h.c b/gl/tests/test-fcntl-h.c
index 648701ef4b..7f350b46f1 100644
--- a/gl/tests/test-fcntl-h.c
+++ b/gl/tests/test-fcntl-h.c
@@ -31,6 +31,11 @@ int sk[] = { SEEK_CUR, SEEK_END, SEEK_SET };
 /* Check that the FD_* macros are defined.  */
 int i = FD_CLOEXEC;
 
+/* Check that the types are all defined.  */
+pid_t t1;
+off_t t2;
+mode_t t3;
+
 int
 main (void)
 {
diff --git a/gl/tests/test-fdopen.c b/gl/tests/test-fdopen.c
new file mode 100644
index 0000000000..304e520a4c
--- /dev/null
+++ b/gl/tests/test-fdopen.c
@@ -0,0 +1,54 @@
+/* Test opening a stream with a file descriptor.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (fdopen, FILE *, (int, const char *));
+
+#include <errno.h>
+
+#include "macros.h"
+
+int
+main (void)
+{
+  /* Test behaviour for invalid file descriptors.  */
+  {
+    FILE *fp;
+
+    errno = 0;
+    fp = fdopen (-1, "r");
+    if (fp == NULL)
+      ASSERT (errno == EBADF);
+    else
+      fclose (fp);
+  }
+  {
+    FILE *fp;
+
+    errno = 0;
+    fp = fdopen (99, "r");
+    if (fp == NULL)
+      ASSERT (errno == EBADF);
+    else
+      fclose (fp);
+  }
+
+  return 0;
+}
diff --git a/gl/tests/test-fgetc.c b/gl/tests/test-fgetc.c
new file mode 100644
index 0000000000..a4e1953eec
--- /dev/null
+++ b/gl/tests/test-fgetc.c
@@ -0,0 +1,84 @@
+/* Test of fgetc() function.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, 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 General Public License for more details.
+
+   You should have received a copy of the GNU 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.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (fgetc, int, (FILE *));
+
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+int
+main (int argc, char **argv)
+{
+  const char *filename = "test-fgetc.txt";
+
+  /* Prepare a file.  */
+  {
+    const char text[] = "hello world";
+    int fd = open (filename, O_RDWR | O_CREAT | O_TRUNC, 0600);
+    ASSERT (fd >= 0);
+    ASSERT (write (fd, text, sizeof (text)) == sizeof (text));
+    ASSERT (close (fd) == 0);
+  }
+
+  /* Test that fgetc() sets errno if someone else closes the stream
+     fd behind the back of stdio.  */
+  {
+    FILE *fp = fopen (filename, "r");
+    ASSERT (fp != NULL);
+    ASSERT (close (fileno (fp)) == 0);
+    errno = 0;
+    ASSERT (fgetc (fp) == EOF);
+    ASSERT (errno == EBADF);
+    fclose (fp);
+  }
+
+  /* Test that fgetc() sets errno if the stream was constructed with
+     an invalid file descriptor.  */
+  {
+    FILE *fp = fdopen (-1, "r");
+    if (fp != NULL)
+      {
+        errno = 0;
+        ASSERT (fgetc (fp) == EOF);
+        ASSERT (errno == EBADF);
+        fclose (fp);
+      }
+  }
+  {
+    FILE *fp = fdopen (99, "r");
+    if (fp != NULL)
+      {
+        errno = 0;
+        ASSERT (fgetc (fp) == EOF);
+        ASSERT (errno == EBADF);
+        fclose (fp);
+      }
+  }
+
+  /* Clean up.  */
+  unlink (filename);
+
+  return 0;
+}
diff --git a/gl/tests/test-fprintf-posix.h b/gl/tests/test-fprintf-posix.h
index 9481aaa16f..e0fa537071 100644
--- a/gl/tests/test-fprintf-posix.h
+++ b/gl/tests/test-fprintf-posix.h
@@ -16,6 +16,8 @@
 
 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
 
+#include "infinity.h"
+
 static void
 test_function (int (*my_fprintf) (FILE *, const char *, ...))
 {
@@ -37,13 +39,13 @@ test_function (int (*my_fprintf) (FILE *, const char *, ...))
   my_fprintf (stdout, "%a %d\n", 0.0, 33, 44, 55);
 
   /* Positive infinity.  */
-  my_fprintf (stdout, "%a %d\n", 1.0 / 0.0, 33, 44, 55);
+  my_fprintf (stdout, "%a %d\n", Infinityd (), 33, 44, 55);
 
   /* Negative infinity.  */
-  my_fprintf (stdout, "%a %d\n", -1.0 / 0.0, 33, 44, 55);
+  my_fprintf (stdout, "%a %d\n", - Infinityd (), 33, 44, 55);
 
   /* FLAG_ZERO with infinite number.  */
-  my_fprintf (stdout, "%010a %d\n", 1.0 / 0.0, 33, 44, 55);
+  my_fprintf (stdout, "%010a %d\n", Infinityd (), 33, 44, 55);
 
   /* Test the support of the %f format directive.  */
 
diff --git a/gl/tests/test-frexp.c b/gl/tests/test-frexp.c
index 4ed24d2902..a7ec639df6 100644
--- a/gl/tests/test-frexp.c
+++ b/gl/tests/test-frexp.c
@@ -27,6 +27,7 @@ SIGNATURE_CHECK (frexp, double, (double, int *));
 
 #include "isnand-nolibm.h"
 #include "minus-zero.h"
+#include "infinity.h"
 #include "nan.h"
 #include "macros.h"
 
@@ -67,7 +68,7 @@ main ()
   { /* Positive infinity.  */
     int exp = -9999;
     double mantissa;
-    x = 1.0 / 0.0;
+    x = Infinityd ();
     mantissa = frexp (x, &exp);
     ASSERT (mantissa == x);
   }
@@ -75,7 +76,7 @@ main ()
   { /* Negative infinity.  */
     int exp = -9999;
     double mantissa;
-    x = -1.0 / 0.0;
+    x = - Infinityd ();
     mantissa = frexp (x, &exp);
     ASSERT (mantissa == x);
   }
diff --git a/gl/tests/test-frexpl.c b/gl/tests/test-frexpl.c
index ccb547b037..905b293a1d 100644
--- a/gl/tests/test-frexpl.c
+++ b/gl/tests/test-frexpl.c
@@ -28,6 +28,7 @@ SIGNATURE_CHECK (frexpl, long double, (long double, int *));
 #include "fpucw.h"
 #include "isnanl-nolibm.h"
 #include "minus-zero.h"
+#include "infinity.h"
 #include "nan.h"
 #include "macros.h"
 
@@ -79,7 +80,7 @@ main ()
   { /* Positive infinity.  */
     int exp = -9999;
     long double mantissa;
-    x = 1.0L / 0.0L;
+    x = Infinityl ();
     mantissa = frexpl (x, &exp);
     ASSERT (mantissa == x);
   }
@@ -87,7 +88,7 @@ main ()
   { /* Negative infinity.  */
     int exp = -9999;
     long double mantissa;
-    x = -1.0L / 0.0L;
+    x = - Infinityl ();
     mantissa = frexpl (x, &exp);
     ASSERT (mantissa == x);
   }
diff --git a/gl/tests/test-fseeko4.c b/gl/tests/test-fseeko4.c
new file mode 100644
index 0000000000..61559e1429
--- /dev/null
+++ b/gl/tests/test-fseeko4.c
@@ -0,0 +1,71 @@
+/* Test of fseeko() function.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include <errno.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+int
+main (int argc, char **argv)
+{
+  const char *filename = argv[1];
+
+  /* Test that fseeko() sets errno if someone else closes the stream
+     fd behind the back of stdio.  */
+  {
+    FILE *fp = fopen (filename, "r");
+    ASSERT (fp != NULL);
+    setvbuf (fp, NULL, _IONBF, 0);
+    ASSERT (ftell (fp) == 0);
+    ASSERT (fseeko (fp, 0, SEEK_END) == 0);
+    ASSERT (ftell (fp) > 0);
+    ASSERT (close (fileno (fp)) == 0);
+    errno = 0;
+    ASSERT (fseeko (fp, 0, SEEK_SET) == -1);
+    ASSERT (errno == EBADF);
+    fclose (fp);
+  }
+
+  /* Test that fseeko() sets errno if the stream was constructed with
+     an invalid file descriptor.  */
+  {
+    FILE *fp = fdopen (-1, "w");
+    if (fp != NULL)
+      {
+        errno = 0;
+        ASSERT (fseeko (fp, 0, SEEK_END) == -1);
+        ASSERT (errno == EBADF);
+        fclose (fp);
+      }
+  }
+  {
+    FILE *fp = fdopen (99, "w");
+    if (fp != NULL)
+      {
+        errno = 0;
+        ASSERT (fseeko (fp, 0, SEEK_END) == -1);
+        ASSERT (errno == EBADF);
+        fclose (fp);
+      }
+  }
+
+  return 0;
+}
diff --git a/gl/tests/test-fseeko4.sh b/gl/tests/test-fseeko4.sh
new file mode 100755
index 0000000000..e6464ae44a
--- /dev/null
+++ b/gl/tests/test-fseeko4.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+./test-fseeko4${EXEEXT} "$srcdir/test-fseeko4.sh" || exit 1
+
+exit 0
diff --git a/gl/tests/test-fstat.c b/gl/tests/test-fstat.c
new file mode 100644
index 0000000000..6c120d9dd5
--- /dev/null
+++ b/gl/tests/test-fstat.c
@@ -0,0 +1,48 @@
+/* Tests of fstat() function.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <sys/stat.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (fstat, int, (int, struct stat *));
+
+#include <errno.h>
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  /* Test behaviour for invalid file descriptors.  */
+  {
+    struct stat statbuf;
+
+    errno = 0;
+    ASSERT (fstat (-1, &statbuf) == -1);
+    ASSERT (errno == EBADF);
+  }
+  {
+    struct stat statbuf;
+
+    errno = 0;
+    ASSERT (fstat (99, &statbuf) == -1);
+    ASSERT (errno == EBADF);
+  }
+
+  return 0;
+}
diff --git a/gl/tests/test-ftello4.c b/gl/tests/test-ftello4.c
new file mode 100644
index 0000000000..d503f71389
--- /dev/null
+++ b/gl/tests/test-ftello4.c
@@ -0,0 +1,68 @@
+/* Test of ftello() function.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include <errno.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+int
+main (int argc, char **argv)
+{
+  const char *filename = argv[1];
+
+  /* Test that ftello() sets errno if someone else closes the stream
+     fd behind the back of stdio.  */
+  {
+    FILE *fp = fopen (filename, "r");
+    ASSERT (fp != NULL);
+    setvbuf (fp, NULL, _IONBF, 0);
+    ASSERT (close (fileno (fp)) == 0);
+    errno = 0;
+    ASSERT (ftello (fp) == (off_t)-1);
+    ASSERT (errno == EBADF);
+    fclose (fp);
+  }
+
+  /* Test that ftello() sets errno if the stream was constructed with
+     an invalid file descriptor.  */
+  {
+    FILE *fp = fdopen (-1, "w");
+    if (fp != NULL)
+      {
+        errno = 0;
+        ASSERT (ftello (fp) == (off_t)-1);
+        ASSERT (errno == EBADF);
+        fclose (fp);
+      }
+  }
+  {
+    FILE *fp = fdopen (99, "w");
+    if (fp != NULL)
+      {
+        errno = 0;
+        ASSERT (ftello (fp) == (off_t)-1);
+        ASSERT (errno == EBADF);
+        fclose (fp);
+      }
+  }
+
+  return 0;
+}
diff --git a/gl/tests/test-ftello4.sh b/gl/tests/test-ftello4.sh
new file mode 100755
index 0000000000..e3702bb605
--- /dev/null
+++ b/gl/tests/test-ftello4.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+./test-ftello4${EXEEXT} "$srcdir/test-ftello4.sh" || exit 1
+
+exit 0
diff --git a/gl/tests/test-isnand.h b/gl/tests/test-isnand.h
index de69331efd..181e36ff05 100644
--- a/gl/tests/test-isnand.h
+++ b/gl/tests/test-isnand.h
@@ -19,6 +19,7 @@
 #include <limits.h>
 
 #include "minus-zero.h"
+#include "infinity.h"
 #include "nan.h"
 #include "macros.h"
 
@@ -35,8 +36,8 @@ main ()
   ASSERT (!isnand (0.0));
   ASSERT (!isnand (minus_zerod));
   /* Infinite values.  */
-  ASSERT (!isnand (1.0 / 0.0));
-  ASSERT (!isnand (-1.0 / 0.0));
+  ASSERT (!isnand (Infinityd ()));
+  ASSERT (!isnand (- Infinityd ()));
   /* Quiet NaN.  */
   ASSERT (isnand (NaNd ()));
 #if defined DBL_EXPBIT0_WORD && defined DBL_EXPBIT0_BIT
diff --git a/gl/tests/test-isnanf.h b/gl/tests/test-isnanf.h
index f4b0e861fc..4a33508e4a 100644
--- a/gl/tests/test-isnanf.h
+++ b/gl/tests/test-isnanf.h
@@ -19,6 +19,7 @@
 #include <limits.h>
 
 #include "minus-zero.h"
+#include "infinity.h"
 #include "nan.h"
 #include "macros.h"
 
@@ -35,8 +36,8 @@ main ()
   ASSERT (!isnanf (0.0f));
   ASSERT (!isnanf (minus_zerof));
   /* Infinite values.  */
-  ASSERT (!isnanf (1.0f / 0.0f));
-  ASSERT (!isnanf (-1.0f / 0.0f));
+  ASSERT (!isnanf (Infinityf ()));
+  ASSERT (!isnanf (- Infinityf ()));
   /* Quiet NaN.  */
   ASSERT (isnanf (NaNf ()));
 #if defined FLT_EXPBIT0_WORD && defined FLT_EXPBIT0_BIT
diff --git a/gl/tests/test-isnanl.h b/gl/tests/test-isnanl.h
index c07f3a9646..055d05f479 100644
--- a/gl/tests/test-isnanl.h
+++ b/gl/tests/test-isnanl.h
@@ -20,6 +20,7 @@
 #include <limits.h>
 
 #include "minus-zero.h"
+#include "infinity.h"
 #include "nan.h"
 #include "macros.h"
 
@@ -41,8 +42,8 @@ main ()
   ASSERT (!isnanl (0.0L));
   ASSERT (!isnanl (minus_zerol));
   /* Infinite values.  */
-  ASSERT (!isnanl (1.0L / 0.0L));
-  ASSERT (!isnanl (-1.0L / 0.0L));
+  ASSERT (!isnanl (Infinityl ()));
+  ASSERT (!isnanl (- Infinityl ()));
   /* Quiet NaN.  */
   ASSERT (isnanl (NaNl ()));
 
diff --git a/gl/tests/test-pathmax.c b/gl/tests/test-pathmax.c
new file mode 100644
index 0000000000..96a1364cc0
--- /dev/null
+++ b/gl/tests/test-pathmax.c
@@ -0,0 +1,32 @@
+/* Test of "pathmax.h".
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2011.  */
+
+#include <config.h>
+
+#include "pathmax.h"
+
+/* Check that PATH_MAX is a constant if it is defined.  */
+#ifdef PATH_MAX
+int a = PATH_MAX;
+#endif
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/gl/tests/test-printf-posix.h b/gl/tests/test-printf-posix.h
index 73365a5b9d..3d29212116 100644
--- a/gl/tests/test-printf-posix.h
+++ b/gl/tests/test-printf-posix.h
@@ -16,6 +16,8 @@
 
 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
 
+#include "infinity.h"
+
 static void
 test_function (int (*my_printf) (const char *, ...))
 {
@@ -37,15 +39,15 @@ test_function (int (*my_printf) (const char *, ...))
   my_printf ("%a %d\n", 0.0, 33, 44, 55);
 
   /* Positive infinity.  */
-  my_printf ("%a %d\n", 1.0 / 0.0, 33, 44, 55);
+  my_printf ("%a %d\n", Infinityd (), 33, 44, 55);
 
   /* Negative infinity.  */
-  my_printf ("%a %d\n", -1.0 / 0.0, 33, 44, 55);
+  my_printf ("%a %d\n", - Infinityd (), 33, 44, 55);
 
   /* FLAG_ZERO with infinite number.  */
   /* "0000000inf 33" is not a valid result; see
      <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
-  my_printf ("%010a %d\n", 1.0 / 0.0, 33, 44, 55);
+  my_printf ("%010a %d\n", Infinityd (), 33, 44, 55);
 
   /* Test the support of the %f format directive.  */
 
diff --git a/gl/tests/test-signbit.c b/gl/tests/test-signbit.c
index c8981498a1..940156e6d9 100644
--- a/gl/tests/test-signbit.c
+++ b/gl/tests/test-signbit.c
@@ -29,6 +29,7 @@
 #include <limits.h>
 
 #include "minus-zero.h"
+#include "infinity.h"
 #include "macros.h"
 
 float zerof = 0.0f;
@@ -52,8 +53,8 @@ test_signbitf ()
   else
     ASSERT (!signbit (minus_zerof));
   /* Infinite values.  */
-  ASSERT (!signbit (1.0f / 0.0f));
-  ASSERT (signbit (-1.0f / 0.0f));
+  ASSERT (!signbit (Infinityf ()));
+  ASSERT (signbit (- Infinityf ()));
   /* Quiet NaN.  */
   (void) signbit (zerof / zerof);
 #if defined FLT_EXPBIT0_WORD && defined FLT_EXPBIT0_BIT
@@ -97,8 +98,8 @@ test_signbitd ()
   else
     ASSERT (!signbit (minus_zerod));
   /* Infinite values.  */
-  ASSERT (!signbit (1.0 / 0.0));
-  ASSERT (signbit (-1.0 / 0.0));
+  ASSERT (!signbit (Infinityd ()));
+  ASSERT (signbit (- Infinityd ()));
   /* Quiet NaN.  */
   (void) signbit (zerod / zerod);
 #if defined DBL_EXPBIT0_WORD && defined DBL_EXPBIT0_BIT
@@ -140,8 +141,8 @@ test_signbitl ()
   else
     ASSERT (!signbit (minus_zerol));
   /* Infinite values.  */
-  ASSERT (!signbit (1.0L / 0.0L));
-  ASSERT (signbit (-1.0L / 0.0L));
+  ASSERT (!signbit (Infinityl ()));
+  ASSERT (signbit (- Infinityl ()));
   /* Quiet NaN.  */
   (void) signbit (zerol / zerol);
 #if defined LDBL_EXPBIT0_WORD && defined LDBL_EXPBIT0_BIT
diff --git a/gl/tests/test-sys_socket.c b/gl/tests/test-sys_socket.c
index a6e99d6008..58c1899e9c 100644
--- a/gl/tests/test-sys_socket.c
+++ b/gl/tests/test-sys_socket.c
@@ -30,6 +30,10 @@ int a[] = { SHUT_RD, SHUT_WR, SHUT_RDWR };
 /* Check that the 'socklen_t' type is defined.  */
 socklen_t t1;
 
+/* Check that the 'size_t' and 'ssize_t' types are defined.  */
+size_t t2;
+ssize_t t3;
+
 /* Check that 'struct iovec' is defined.  */
 struct iovec io;
 
diff --git a/gl/tests/test-sys_stat.c b/gl/tests/test-sys_stat.c
index cd07d86e87..3303badcce 100644
--- a/gl/tests/test-sys_stat.c
+++ b/gl/tests/test-sys_stat.c
@@ -26,11 +26,14 @@
 int a[] =
   {
     S_IFMT,
-    S_IFBLK, S_IFCHR, S_IFDIR, S_IFIFO, S_IFREG,
-#ifdef S_IFLNK /* missing on mingw and djgpp */
+#ifdef S_IFBLK /* missing on MSVC */
+    S_IFBLK,
+#endif
+    S_IFCHR, S_IFDIR, S_IFIFO, S_IFREG,
+#ifdef S_IFLNK /* missing on native Windows and DJGPP */
     S_IFLNK,
 #endif
-#ifdef S_IFSOCK /* missing on mingw and djgpp */
+#ifdef S_IFSOCK /* missing on native Windows and DJGPP */
     S_IFSOCK,
 #endif
     S_IRWXU, S_IRUSR, S_IWUSR, S_IXUSR,
@@ -61,7 +64,9 @@ verify (S_IRWXU == (S_IRUSR | S_IWUSR | S_IXUSR));
 verify (S_IRWXG == (S_IRGRP | S_IWGRP | S_IXGRP));
 verify (S_IRWXO == (S_IROTH | S_IWOTH | S_IXOTH));
 
+#ifdef S_IFBLK
 verify (S_ISBLK (S_IFBLK));
+#endif
 verify (!S_ISBLK (S_IFCHR));
 verify (!S_ISBLK (S_IFDIR));
 verify (!S_ISBLK (S_IFIFO));
@@ -73,7 +78,9 @@ verify (!S_ISBLK (S_IFLNK));
 verify (!S_ISBLK (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISCHR (S_IFBLK));
+#endif
 verify (S_ISCHR (S_IFCHR));
 verify (!S_ISCHR (S_IFDIR));
 verify (!S_ISCHR (S_IFIFO));
@@ -85,7 +92,9 @@ verify (!S_ISCHR (S_IFLNK));
 verify (!S_ISCHR (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISDIR (S_IFBLK));
+#endif
 verify (!S_ISDIR (S_IFCHR));
 verify (S_ISDIR (S_IFDIR));
 verify (!S_ISDIR (S_IFIFO));
@@ -97,7 +106,9 @@ verify (!S_ISDIR (S_IFLNK));
 verify (!S_ISDIR (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISFIFO (S_IFBLK));
+#endif
 verify (!S_ISFIFO (S_IFCHR));
 verify (!S_ISFIFO (S_IFDIR));
 verify (S_ISFIFO (S_IFIFO));
@@ -109,7 +120,9 @@ verify (!S_ISFIFO (S_IFLNK));
 verify (!S_ISFIFO (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISREG (S_IFBLK));
+#endif
 verify (!S_ISREG (S_IFCHR));
 verify (!S_ISREG (S_IFDIR));
 verify (!S_ISREG (S_IFIFO));
@@ -121,7 +134,9 @@ verify (!S_ISREG (S_IFLNK));
 verify (!S_ISREG (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISLNK (S_IFBLK));
+#endif
 verify (!S_ISLNK (S_IFCHR));
 verify (!S_ISLNK (S_IFDIR));
 verify (!S_ISLNK (S_IFIFO));
@@ -133,7 +148,9 @@ verify (S_ISLNK (S_IFLNK));
 verify (!S_ISLNK (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISSOCK (S_IFBLK));
+#endif
 verify (!S_ISSOCK (S_IFCHR));
 verify (!S_ISSOCK (S_IFDIR));
 verify (!S_ISSOCK (S_IFIFO));
@@ -145,7 +162,9 @@ verify (!S_ISSOCK (S_IFLNK));
 verify (S_ISSOCK (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISDOOR (S_IFBLK));
+#endif
 verify (!S_ISDOOR (S_IFCHR));
 verify (!S_ISDOOR (S_IFDIR));
 verify (!S_ISDOOR (S_IFIFO));
@@ -157,7 +176,9 @@ verify (!S_ISDOOR (S_IFLNK));
 verify (!S_ISDOOR (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISMPB (S_IFBLK));
+#endif
 verify (!S_ISMPB (S_IFCHR));
 verify (!S_ISMPB (S_IFDIR));
 verify (!S_ISMPB (S_IFIFO));
@@ -169,7 +190,9 @@ verify (!S_ISMPB (S_IFLNK));
 verify (!S_ISMPB (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISNAM (S_IFBLK));
+#endif
 verify (!S_ISNAM (S_IFCHR));
 verify (!S_ISNAM (S_IFDIR));
 verify (!S_ISNAM (S_IFIFO));
@@ -181,7 +204,9 @@ verify (!S_ISNAM (S_IFLNK));
 verify (!S_ISNAM (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISNWK (S_IFBLK));
+#endif
 verify (!S_ISNWK (S_IFCHR));
 verify (!S_ISNWK (S_IFDIR));
 verify (!S_ISNWK (S_IFIFO));
@@ -193,7 +218,9 @@ verify (!S_ISNWK (S_IFLNK));
 verify (!S_ISNWK (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISPORT (S_IFBLK));
+#endif
 verify (!S_ISPORT (S_IFCHR));
 verify (!S_ISPORT (S_IFDIR));
 verify (!S_ISPORT (S_IFIFO));
@@ -205,7 +232,9 @@ verify (!S_ISPORT (S_IFLNK));
 verify (!S_ISPORT (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISCTG (S_IFBLK));
+#endif
 verify (!S_ISCTG (S_IFCHR));
 verify (!S_ISCTG (S_IFDIR));
 verify (!S_ISCTG (S_IFIFO));
@@ -217,7 +246,9 @@ verify (!S_ISCTG (S_IFLNK));
 verify (!S_ISCTG (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISOFD (S_IFBLK));
+#endif
 verify (!S_ISOFD (S_IFCHR));
 verify (!S_ISOFD (S_IFDIR));
 verify (!S_ISOFD (S_IFIFO));
@@ -229,7 +260,9 @@ verify (!S_ISOFD (S_IFLNK));
 verify (!S_ISOFD (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISOFL (S_IFBLK));
+#endif
 verify (!S_ISOFL (S_IFCHR));
 verify (!S_ISOFL (S_IFDIR));
 verify (!S_ISOFL (S_IFIFO));
@@ -241,7 +274,9 @@ verify (!S_ISOFL (S_IFLNK));
 verify (!S_ISOFL (S_IFSOCK));
 #endif
 
+#ifdef S_IFBLK
 verify (!S_ISWHT (S_IFBLK));
+#endif
 verify (!S_ISWHT (S_IFCHR));
 verify (!S_ISWHT (S_IFDIR));
 verify (!S_ISWHT (S_IFIFO));
@@ -278,8 +313,10 @@ invalid UTIME macros
 
 /* Check the existence of some types.  */
 nlink_t t1;
+off_t t2;
+mode_t t3;
 
-struct timespec t2;
+struct timespec st;
 
 int
 main (void)
diff --git a/gl/tests/test-sys_types.c b/gl/tests/test-sys_types.c
new file mode 100644
index 0000000000..816c9d6162
--- /dev/null
+++ b/gl/tests/test-sys_types.c
@@ -0,0 +1,34 @@
+/* Test of <sys/types.h> substitute.
+   Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2011.  */
+
+#include <config.h>
+
+#include <sys/types.h>
+
+/* Check that the types are all defined.  */
+pid_t t1;
+size_t t2;
+ssize_t t3;
+off_t t4;
+mode_t t5;
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/gl/tests/test-time.c b/gl/tests/test-time.c
index 0c78f36c66..d499a5ca16 100644
--- a/gl/tests/test-time.c
+++ b/gl/tests/test-time.c
@@ -22,7 +22,13 @@
 
 #include "verify.h"
 
-struct timespec a;
+/* Check that the types are all defined.  */
+struct timespec t1;
+#if 0
+/* POSIX:2008 does not require pid_t in <time.h> unconditionally, and indeed
+   it's missing on MacOS X 10.5, FreeBSD 6.4, OpenBSD 4.9, mingw.  */
+pid_t t2;
+#endif
 
 /* Check that NULL can be passed through varargs as a pointer type,
    per POSIX 2008.  */
diff --git a/gl/unistd.in.h b/gl/unistd.in.h
index 119cd142f4..7df1ed0202 100644
--- a/gl/unistd.in.h
+++ b/gl/unistd.in.h
@@ -75,7 +75,8 @@
 #endif
 
 /* mingw fails to declare _exit in <unistd.h>.  */
-/* mingw, BeOS, Haiku declare environ in <stdlib.h>, not in <unistd.h>.  */
+/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in
+   <unistd.h>.  */
 /* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>.  */
 /* But avoid namespace pollution on glibc systems.  */
 #ifndef __GLIBC__
@@ -98,6 +99,12 @@
 # include <netdb.h>
 #endif
 
+/* MSVC defines off_t in <sys/types.h>.  */
+#if !@HAVE_UNISTD_H@
+/* Get off_t.  */
+# include <sys/types.h>
+#endif
+
 #if (@GNULIB_READ@ || @GNULIB_WRITE@ \
      || @GNULIB_READLINK@ || @GNULIB_READLINKAT@ \
      || @GNULIB_PREAD@ || @GNULIB_PWRITE@ || defined GNULIB_POSIXCHECK)
@@ -228,8 +235,8 @@ _GL_WARN_ON_USE (access, "the access function is a security risk - "
 /* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
    to GID (if GID is not -1).  Follow symbolic links.
    Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/chown.html>.  */
+   See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html.  */
 # if @REPLACE_CHOWN@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   undef chown
@@ -296,8 +303,8 @@ _GL_CXXALIASWARN (dup);
 /* Copy the file descriptor OLDFD into file descriptor NEWFD.  Do nothing if
    NEWFD = OLDFD, otherwise close NEWFD first if it is open.
    Return newfd if successful, otherwise -1 and errno set.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/dup2.html>.  */
+   See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>.  */
 # if @REPLACE_DUP2@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   define dup2 rpl_dup2
@@ -426,8 +433,8 @@ _GL_WARN_ON_USE (faccessat, "faccessat is not portable - "
 /* Change the process' current working directory to the directory on which
    the given file descriptor is open.
    Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/fchdir.html>.  */
+   See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>.  */
 # if ! @HAVE_FCHDIR@
 _GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
 
@@ -484,11 +491,30 @@ _GL_WARN_ON_USE (fchownat, "fchownat is not portable - "
 #endif
 
 
-#if @GNULIB_FSYNC@
+#if @GNULIB_FDATASYNC@
 /* Synchronize changes to a file.
    Return 0 if successful, otherwise -1 and errno set.
-   See POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/fsync.html>.  */
+   See POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>.  */
+# if !@HAVE_FDATASYNC@ || !@HAVE_DECL_FDATASYNC@
+_GL_FUNCDECL_SYS (fdatasync, int, (int fd));
+# endif
+_GL_CXXALIAS_SYS (fdatasync, int, (int fd));
+_GL_CXXALIASWARN (fdatasync);
+#elif defined GNULIB_POSIXCHECK
+# undef fdatasync
+# if HAVE_RAW_DECL_FDATASYNC
+_GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - "
+                 "use gnulib module fdatasync for portability");
+# endif
+#endif
+
+
+#if @GNULIB_FSYNC@
+/* Synchronize changes, including metadata, to a file.
+   Return 0 if successful, otherwise -1 and errno set.
+   See POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>.  */
 # if !@HAVE_FSYNC@
 _GL_FUNCDECL_SYS (fsync, int, (int fd));
 # endif
@@ -506,8 +532,8 @@ _GL_WARN_ON_USE (fsync, "fsync is unportable - "
 #if @GNULIB_FTRUNCATE@
 /* Change the size of the file to which FD is opened to become equal to LENGTH.
    Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/ftruncate.html>.  */
+   See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>.  */
 # if !@HAVE_FTRUNCATE@
 _GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length));
 # endif
@@ -527,8 +553,8 @@ _GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - "
    of BUF.
    Return BUF if successful, or NULL if the directory couldn't be determined
    or SIZE was too small.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/getcwd.html>.
+   See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>.
    Additionally, the gnulib module 'getcwd' guarantees the following GNU
    extension: If BUF is NULL, an array is allocated with 'malloc'; the array
    is SIZE bytes long, unless SIZE == 0, in which case it is as big as
@@ -891,8 +917,8 @@ _GL_WARN_ON_USE (group_member, "group_member is unportable - "
 /* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
    to GID (if GID is not -1).  Do not follow symbolic links.
    Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/lchown.html>.  */
+   See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>.  */
 # if @REPLACE_LCHOWN@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   undef lchown
@@ -921,8 +947,8 @@ _GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - "
 #if @GNULIB_LINK@
 /* Create a new hard link for an existing file.
    Return 0 if successful, otherwise -1 and errno set.
-   See POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/link.html>.  */
+   See POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>.  */
 # if @REPLACE_LINK@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   define link rpl_link
@@ -987,8 +1013,8 @@ _GL_WARN_ON_USE (linkat, "linkat is unportable - "
 #if @GNULIB_LSEEK@
 /* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END.
    Return the new offset if successful, otherwise -1 and errno set.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/lseek.html>.  */
+   See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>.  */
 # if @REPLACE_LSEEK@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   define lseek rpl_lseek
@@ -1058,8 +1084,9 @@ _GL_WARN_ON_USE (pipe2, "pipe2 is unportable - "
 #if @GNULIB_PREAD@
 /* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET.
    Return the number of bytes placed into BUF if successful, otherwise
-   set errno and return -1.  0 indicates EOF.  See the POSIX:2001
-   specification <http://www.opengroup.org/susv3xsh/pread.html>.  */
+   set errno and return -1.  0 indicates EOF.
+   See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>.  */
 # if @REPLACE_PREAD@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   undef pread
@@ -1093,8 +1120,8 @@ _GL_WARN_ON_USE (pread, "pread is unportable - "
 /* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET.
    Return the number of bytes written if successful, otherwise
    set errno and return -1.  0 indicates nothing written.  See the
-   POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/pwrite.html>.  */
+   POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>.  */
 # if @REPLACE_PWRITE@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   undef pwrite
@@ -1126,8 +1153,8 @@ _GL_WARN_ON_USE (pwrite, "pwrite is unportable - "
 
 #if @GNULIB_READ@
 /* Read up to COUNT bytes from file descriptor FD into the buffer starting
-   at BUF.  See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/read.html>.  */
+   at BUF.  See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>.  */
 # if @REPLACE_READ@ && @GNULIB_UNISTD_H_NONBLOCKING@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   undef read
@@ -1150,8 +1177,8 @@ _GL_CXXALIASWARN (read);
 /* Read the contents of the symbolic link FILE and place the first BUFSIZE
    bytes of it into BUF.  Return the number of bytes placed into BUF if
    successful, otherwise -1 and errno set.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/readlink.html>.  */
+   See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>.  */
 # if @REPLACE_READLINK@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   define readlink rpl_readlink
@@ -1222,8 +1249,8 @@ _GL_WARN_ON_USE (rmdir, "rmdir is unportable - "
 #if @GNULIB_SLEEP@
 /* Pause the execution of the current thread for N seconds.
    Returns the number of seconds left to sleep.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/sleep.html>.  */
+   See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>.  */
 # if @REPLACE_SLEEP@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   undef sleep
@@ -1372,7 +1399,7 @@ _GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - "
 /* Pause the execution of the current thread for N microseconds.
    Returns 0 on completion, or -1 on range error.
    See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/sleep.html>.  */
+   <http://www.opengroup.org/susv3xsh/usleep.html>.  */
 # if @REPLACE_USLEEP@
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   undef usleep
@@ -1398,8 +1425,8 @@ _GL_WARN_ON_USE (usleep, "usleep is unportable - "
 
 #if @GNULIB_WRITE@
 /* Write up to COUNT bytes starting at BUF to file descriptor FD.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/write.html>.  */
+   See the POSIX:2008 specification
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>.  */
 # if @REPLACE_WRITE@ && (@GNULIB_UNISTD_H_NONBLOCKING@ || @GNULIB_UNISTD_H_SIGPIPE@)
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   undef write
diff --git a/gl/wchar.in.h b/gl/wchar.in.h
index 1401ae2131..1ed45214ca 100644
--- a/gl/wchar.in.h
+++ b/gl/wchar.in.h
@@ -98,6 +98,18 @@
 #  define WEOF -1
 # endif
 #else
+/* MSVC defines wint_t as 'unsigned short' in <crtdefs.h>.
+   This is too small: ISO C 99 section 7.24.1.(2) says that wint_t must be
+   "unchanged by default argument promotions".  Override it.  */
+# if defined _MSC_VER
+#  if !GNULIB_defined_wint_t
+#   include <crtdefs.h>
+typedef unsigned int rpl_wint_t;
+#   undef wint_t
+#   define wint_t rpl_wint_t
+#   define GNULIB_defined_wint_t 1
+#  endif
+# endif
 # ifndef WEOF
 #  define WEOF ((wint_t) -1)
 # endif
author	Simon Josefsson <simon@josefsson.org>	2011-09-21 15:49:06 +0200
committer	Simon Josefsson <simon@josefsson.org>	2011-09-21 15:49:06 +0200
commit	5fdaefe2cfd2e38a83fee58c6a2b852d5e124d69 (patch)
tree	aba3494f385bea407fd4b4f840b8b9cdfef711c2 /gl
parent	0f206a54a53abe0ca38216081d587cf98096fb26 (diff)
download	gnutls-5fdaefe2cfd2e38a83fee58c6a2b852d5e124d69.tar.gz