Update Gnulib to v0.0-4544-gce083ca.

7 files changed, 75 insertions, 27 deletions

diff --git a/lib/Makefile.am b/lib/Makefile.am
index ea4a69f91..7e2d4d43c 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -232,7 +232,8 @@ EXTRA_DIST += close-hook.h
 #
 # Another advantage is that 'make' output is shorter.
 #
-# Listed in the same order as the GNU makefile conventions.
+# Listed in the same order as the GNU makefile conventions, and
+# provided by autoconf 2.59c+.
 # The Automake-defined pkg* macros are appended, in the order
 # listed in the Automake 1.10a+ documentation.
 configmake.h: Makefile
@@ -1155,6 +1156,8 @@ stdio.h: stdio.in.h $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
 	      -e 's|@''GNULIB_VSPRINTF_POSIX''@|$(GNULIB_VSPRINTF_POSIX)|g' \
 	      < $(srcdir)/stdio.in.h | \
 	  sed -e 's|@''HAVE_DECL_FPURGE''@|$(HAVE_DECL_FPURGE)|g' \
+	      -e 's|@''HAVE_DECL_FSEEKO''@|$(HAVE_DECL_FSEEKO)|g' \
+	      -e 's|@''HAVE_DECL_FTELLO''@|$(HAVE_DECL_FTELLO)|g' \
 	      -e 's|@''HAVE_DECL_GETDELIM''@|$(HAVE_DECL_GETDELIM)|g' \
 	      -e 's|@''HAVE_DECL_GETLINE''@|$(HAVE_DECL_GETLINE)|g' \
 	      -e 's|@''HAVE_DECL_OBSTACK_PRINTF''@|$(HAVE_DECL_OBSTACK_PRINTF)|g' \
@@ -1265,14 +1268,14 @@ stdlib.h: stdlib.in.h $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
 	      -e 's|@''HAVE_RANDOM_R''@|$(HAVE_RANDOM_R)|g' \
 	      -e 's|@''HAVE_REALPATH''@|$(HAVE_REALPATH)|g' \
 	      -e 's|@''HAVE_RPMATCH''@|$(HAVE_RPMATCH)|g' \
-	      -e 's|@''HAVE_SETENV''@|$(HAVE_SETENV)|g' \
+	      -e 's|@''HAVE_DECL_SETENV''@|$(HAVE_DECL_SETENV)|g' \
 	      -e 's|@''HAVE_STRTOD''@|$(HAVE_STRTOD)|g' \
 	      -e 's|@''HAVE_STRTOLL''@|$(HAVE_STRTOLL)|g' \
 	      -e 's|@''HAVE_STRTOULL''@|$(HAVE_STRTOULL)|g' \
 	      -e 's|@''HAVE_STRUCT_RANDOM_DATA''@|$(HAVE_STRUCT_RANDOM_DATA)|g' \
 	      -e 's|@''HAVE_SYS_LOADAVG_H''@|$(HAVE_SYS_LOADAVG_H)|g' \
 	      -e 's|@''HAVE_UNLOCKPT''@|$(HAVE_UNLOCKPT)|g' \
-	      -e 's|@''HAVE_UNSETENV''@|$(HAVE_UNSETENV)|g' \
+	      -e 's|@''HAVE_DECL_UNSETENV''@|$(HAVE_DECL_UNSETENV)|g' \
 	      -e 's|@''REPLACE_CALLOC''@|$(REPLACE_CALLOC)|g' \
 	      -e 's|@''REPLACE_CANONICALIZE_FILE_NAME''@|$(REPLACE_CANONICALIZE_FILE_NAME)|g' \
 	      -e 's|@''REPLACE_MALLOC''@|$(REPLACE_MALLOC)|g' \
@@ -1676,6 +1679,7 @@ unistd.h: unistd.in.h $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
 	      -e 's|@''GNULIB_LINK''@|$(GNULIB_LINK)|g' \
 	      -e 's|@''GNULIB_LINKAT''@|$(GNULIB_LINKAT)|g' \
 	      -e 's|@''GNULIB_LSEEK''@|$(GNULIB_LSEEK)|g' \
+	      -e 's|@''GNULIB_PIPE''@|$(GNULIB_PIPE)|g' \
 	      -e 's|@''GNULIB_PIPE2''@|$(GNULIB_PIPE2)|g' \
 	      -e 's|@''GNULIB_PREAD''@|$(GNULIB_PREAD)|g' \
 	      -e 's|@''GNULIB_PWRITE''@|$(GNULIB_PWRITE)|g' \
@@ -1710,6 +1714,7 @@ unistd.h: unistd.in.h $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
 	      -e 's|@''HAVE_LCHOWN''@|$(HAVE_LCHOWN)|g' \
 	      -e 's|@''HAVE_LINK''@|$(HAVE_LINK)|g' \
 	      -e 's|@''HAVE_LINKAT''@|$(HAVE_LINKAT)|g' \
+	      -e 's|@''HAVE_PIPE''@|$(HAVE_PIPE)|g' \
 	      -e 's|@''HAVE_PIPE2''@|$(HAVE_PIPE2)|g' \
 	      -e 's|@''HAVE_PREAD''@|$(HAVE_PREAD)|g' \
 	      -e 's|@''HAVE_PWRITE''@|$(HAVE_PWRITE)|g' \
@@ -1718,14 +1723,15 @@ unistd.h: unistd.in.h $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
 	      -e 's|@''HAVE_SLEEP''@|$(HAVE_SLEEP)|g' \
 	      -e 's|@''HAVE_SYMLINK''@|$(HAVE_SYMLINK)|g' \
 	      -e 's|@''HAVE_SYMLINKAT''@|$(HAVE_SYMLINKAT)|g' \
-	      -e 's|@''HAVE_TTYNAME_R''@|$(HAVE_TTYNAME_R)|g' \
 	      -e 's|@''HAVE_UNLINKAT''@|$(HAVE_UNLINKAT)|g' \
 	      -e 's|@''HAVE_USLEEP''@|$(HAVE_USLEEP)|g' \
 	      -e 's|@''HAVE_DECL_ENVIRON''@|$(HAVE_DECL_ENVIRON)|g' \
+	      -e 's|@''HAVE_DECL_FCHDIR''@|$(HAVE_DECL_FCHDIR)|g' \
 	      -e 's|@''HAVE_DECL_GETDOMAINNAME''@|$(HAVE_DECL_GETDOMAINNAME)|g' \
 	      -e 's|@''HAVE_DECL_GETLOGIN_R''@|$(HAVE_DECL_GETLOGIN_R)|g' \
 	      -e 's|@''HAVE_DECL_GETPAGESIZE''@|$(HAVE_DECL_GETPAGESIZE)|g' \
 	      -e 's|@''HAVE_DECL_GETUSERSHELL''@|$(HAVE_DECL_GETUSERSHELL)|g' \
+	      -e 's|@''HAVE_DECL_TTYNAME_R''@|$(HAVE_DECL_TTYNAME_R)|g' \
 	      -e 's|@''HAVE_OS_H''@|$(HAVE_OS_H)|g' \
 	      -e 's|@''HAVE_SYS_PARAM_H''@|$(HAVE_SYS_PARAM_H)|g' \
 	      -e 's|@''REPLACE_CHOWN''@|$(REPLACE_CHOWN)|g' \
diff --git a/lib/math.in.h b/lib/math.in.h
index f1bda2ed9..b04c9e630 100644
--- a/lib/math.in.h
+++ b/lib/math.in.h
@@ -680,6 +680,10 @@ _GL_EXTERN_C int rpl_isnanl (long double x);
     sizeof (x) == sizeof (double) ? gl_isnan_d (x) : \
     gl_isnan_f (x))
 # endif
+/* Ensure isnan is a macro.  */
+# ifndef isnan
+#  define isnan isnan
+# endif
 #elif defined GNULIB_POSIXCHECK
 # if defined isnan
 _GL_WARN_REAL_FLOATING_DECL (isnan);
diff --git a/lib/stdio.in.h b/lib/stdio.in.h
index fbd096a21..1aa122796 100644
--- a/lib/stdio.in.h
+++ b/lib/stdio.in.h
@@ -21,8 +21,14 @@
 #endif
 @PRAGMA_COLUMNS@
 
-#if defined __need_FILE || defined __need___FILE
-/* Special invocation convention inside glibc header files.  */
+#if defined __need_FILE || defined __need___FILE || defined _GL_ALREADY_INCLUDING_STDIO_H
+/* Special invocation convention:
+   - Inside glibc header files.
+   - On OSF/1 5.1 we have a sequence of nested includes
+     <stdio.h> -> <getopt.h> -> <ctype.h> -> <sys/localedef.h> ->
+     <sys/lc_core.h> -> <nl_types.h> -> <mesg.h> -> <stdio.h>.
+     In this situation, the functions are not yet declared, therefore we cannot
+     provide the C++ aliases.  */
 
 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
 
@@ -31,9 +37,13 @@
 
 #ifndef _GL_STDIO_H
 
+#define _GL_ALREADY_INCLUDING_STDIO_H
+
 /* The include_next requires a split double-inclusion guard.  */
 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
 
+#undef _GL_ALREADY_INCLUDING_STDIO_H
+
 #ifndef _GL_STDIO_H
 #define _GL_STDIO_H
 
@@ -345,7 +355,7 @@ _GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
                                _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
 # else
-#  if ! @HAVE_FSEEKO@
+#  if ! @HAVE_DECL_FSEEKO@
 _GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)
                                _GL_ARG_NONNULL ((1)));
 #  endif
@@ -421,7 +431,7 @@ _GL_CXXALIASWARN (ftell);
 _GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
 # else
-#  if ! @HAVE_FTELLO@
+#  if ! @HAVE_DECL_FTELLO@
 _GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
 #  endif
 _GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h
index 04f32b6b8..1bae6c7d2 100644
--- a/lib/stdlib.in.h
+++ b/lib/stdlib.in.h
@@ -584,7 +584,7 @@ _GL_FUNCDECL_RPL (setenv, int,
 _GL_CXXALIAS_RPL (setenv, int,
                   (const char *name, const char *value, int replace));
 # else
-#  if !@HAVE_SETENV@
+#  if !@HAVE_DECL_SETENV@
 _GL_FUNCDECL_SYS (setenv, int,
                   (const char *name, const char *value, int replace)
                   _GL_ARG_NONNULL ((1)));
@@ -592,7 +592,9 @@ _GL_FUNCDECL_SYS (setenv, int,
 _GL_CXXALIAS_SYS (setenv, int,
                   (const char *name, const char *value, int replace));
 # endif
+# if !(@REPLACE_SETENV@ && !@HAVE_DECL_SETENV@)
 _GL_CXXALIASWARN (setenv);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef setenv
 # if HAVE_RAW_DECL_SETENV
@@ -702,12 +704,14 @@ _GL_WARN_ON_USE (unlockpt, "unlockpt is not portable - "
 _GL_FUNCDECL_RPL (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_RPL (unsetenv, int, (const char *name));
 # else
-#  if !@HAVE_UNSETENV@
+#  if !@HAVE_DECL_UNSETENV@
 _GL_FUNCDECL_SYS (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
 #  endif
 _GL_CXXALIAS_SYS (unsetenv, int, (const char *name));
 # endif
+# if !(@REPLACE_UNSETENV@ && !@HAVE_DECL_UNSETENV@)
 _GL_CXXALIASWARN (unsetenv);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef unsetenv
 # if HAVE_RAW_DECL_UNSETENV
diff --git a/lib/sys_stat.in.h b/lib/sys_stat.in.h
index 920da9ab5..f969ab9d1 100644
--- a/lib/sys_stat.in.h
+++ b/lib/sys_stat.in.h
@@ -550,7 +550,8 @@ _GL_CXXALIAS_RPL (mknod, int, (char const *file, mode_t mode, dev_t dev));
 _GL_FUNCDECL_SYS (mknod, int, (char const *file, mode_t mode, dev_t dev)
                               _GL_ARG_NONNULL ((1)));
 #  endif
-_GL_CXXALIAS_SYS (mknod, int, (char const *file, mode_t mode, dev_t dev));
+/* Need to cast, because on OSF/1 5.1, the third parameter is '...'.  */
+_GL_CXXALIAS_SYS_CAST (mknod, int, (char const *file, mode_t mode, dev_t dev));
 # endif
 _GL_CXXALIASWARN (mknod);
 #elif defined GNULIB_POSIXCHECK
diff --git a/lib/unistd.in.h b/lib/unistd.in.h
index 8955f397d..0a4fa6bd0 100644
--- a/lib/unistd.in.h
+++ b/lib/unistd.in.h
@@ -435,6 +435,10 @@ _GL_EXTERN_C void _gl_unregister_fd (int fd);
 _GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd);
 _GL_EXTERN_C const char *_gl_directory_name (int fd);
 
+# else
+#  if !@HAVE_DECL_FCHDIR@
+_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
+#  endif
 # endif
 _GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/));
 _GL_CXXALIASWARN (fchdir);
@@ -650,7 +654,8 @@ _GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len));
 _GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len)
                                     _GL_ARG_NONNULL ((1)));
 #  endif
-/* Need to cast, because on Solaris 10 systems, the second parameter is
+/* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second
+   parameter is
                                                       int len.  */
 _GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len));
 # endif
@@ -972,6 +977,24 @@ _GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some "
 #endif
 
 
+#if @GNULIB_PIPE@
+/* Create a pipe, defaulting to O_BINARY mode.
+   Store the read-end as fd[0] and the write-end as fd[1].
+   Return 0 upon success, or -1 with errno set upon failure.  */
+# if !@HAVE_PIPE@
+_GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (pipe, int, (int fd[2]));
+_GL_CXXALIASWARN (pipe);
+#elif defined GNULIB_POSIXCHECK
+# undef pipe
+# if HAVE_RAW_DECL_PIPE
+_GL_WARN_ON_USE (pipe, "pipe is unportable - "
+                 "use gnulib module pipe-posix for portability");
+# endif
+#endif
+
+
 #if @GNULIB_PIPE2@
 /* Create a pipe, applying the given flags when opening the read-end of the
    pipe and the write-end of the pipe.
@@ -1226,7 +1249,7 @@ _GL_FUNCDECL_RPL (ttyname_r, int,
 _GL_CXXALIAS_RPL (ttyname_r, int,
                   (int fd, char *buf, size_t buflen));
 # else
-#  if !@HAVE_TTYNAME_R@
+#  if !@HAVE_DECL_TTYNAME_R@
 _GL_FUNCDECL_SYS (ttyname_r, int,
                   (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
 #  endif
diff --git a/lib/unistr.in.h b/lib/unistr.in.h
index 2164d9d34..2e7c6184c 100644
--- a/lib/unistr.in.h
+++ b/lib/unistr.in.h
@@ -134,7 +134,7 @@ extern int
 /* The variants with _safe suffix are safe, even if the library is compiled
    without --enable-safety.  */
 
-#if defined GNULIB_UNISTR_U8_MBTOUC_UNSAFE || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U8_MBTOUC_UNSAFE || HAVE_LIBUNISTRING
 # if !HAVE_INLINE
 extern int
        u8_mbtouc_unsafe (ucs4_t *puc, const uint8_t *s, size_t n);
@@ -157,7 +157,7 @@ u8_mbtouc_unsafe (ucs4_t *puc, const uint8_t *s, size_t n)
 # endif
 #endif
 
-#if defined GNULIB_UNISTR_U16_MBTOUC_UNSAFE || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U16_MBTOUC_UNSAFE || HAVE_LIBUNISTRING
 # if !HAVE_INLINE
 extern int
        u16_mbtouc_unsafe (ucs4_t *puc, const uint16_t *s, size_t n);
@@ -180,7 +180,7 @@ u16_mbtouc_unsafe (ucs4_t *puc, const uint16_t *s, size_t n)
 # endif
 #endif
 
-#if defined GNULIB_UNISTR_U32_MBTOUC_UNSAFE || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U32_MBTOUC_UNSAFE || HAVE_LIBUNISTRING
 # if !HAVE_INLINE
 extern int
        u32_mbtouc_unsafe (ucs4_t *puc, const uint32_t *s, size_t n);
@@ -191,11 +191,11 @@ u32_mbtouc_unsafe (ucs4_t *puc,
 {
   uint32_t c = *s;
 
-#  ifdef CONFIG_UNICODE_SAFETY
+#  if CONFIG_UNICODE_SAFETY
   if (c < 0xd800 || (c >= 0xe000 && c < 0x110000))
 #  endif
     *puc = c;
-#  ifdef CONFIG_UNICODE_SAFETY
+#  if CONFIG_UNICODE_SAFETY
   else
     /* invalid multibyte character */
     *puc = 0xfffd;
@@ -205,7 +205,7 @@ u32_mbtouc_unsafe (ucs4_t *puc,
 # endif
 #endif
 
-#if defined GNULIB_UNISTR_U8_MBTOUC || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U8_MBTOUC || HAVE_LIBUNISTRING
 # if !HAVE_INLINE
 extern int
        u8_mbtouc (ucs4_t *puc, const uint8_t *s, size_t n);
@@ -228,7 +228,7 @@ u8_mbtouc (ucs4_t *puc, const uint8_t *s, size_t n)
 # endif
 #endif
 
-#if defined GNULIB_UNISTR_U16_MBTOUC || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U16_MBTOUC || HAVE_LIBUNISTRING
 # if !HAVE_INLINE
 extern int
        u16_mbtouc (ucs4_t *puc, const uint16_t *s, size_t n);
@@ -251,7 +251,7 @@ u16_mbtouc (ucs4_t *puc, const uint16_t *s, size_t n)
 # endif
 #endif
 
-#if defined GNULIB_UNISTR_U32_MBTOUC || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U32_MBTOUC || HAVE_LIBUNISTRING
 # if !HAVE_INLINE
 extern int
        u32_mbtouc (ucs4_t *puc, const uint32_t *s, size_t n);
@@ -279,17 +279,17 @@ u32_mbtouc (ucs4_t *puc, const uint32_t *s, size_t n _GL_UNUSED_PARAMETER)
 /* Similar to u*_mbtouc(), except that the return value gives more details
    about the failure, similar to mbrtowc().  */
 
-#if defined GNULIB_UNISTR_U8_MBTOUCR || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U8_MBTOUCR || HAVE_LIBUNISTRING
 extern int
        u8_mbtoucr (ucs4_t *puc, const uint8_t *s, size_t n);
 #endif
 
-#if defined GNULIB_UNISTR_U16_MBTOUCR || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U16_MBTOUCR || HAVE_LIBUNISTRING
 extern int
        u16_mbtoucr (ucs4_t *puc, const uint16_t *s, size_t n);
 #endif
 
-#if defined GNULIB_UNISTR_U32_MBTOUCR || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U32_MBTOUCR || HAVE_LIBUNISTRING
 extern int
        u32_mbtoucr (ucs4_t *puc, const uint32_t *s, size_t n);
 #endif
@@ -300,7 +300,7 @@ extern int
 /* Similar to wctomb(), except that s must not be NULL, and the argument n
    must be specified.  */
 
-#if defined GNULIB_UNISTR_U8_UCTOMB || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U8_UCTOMB || HAVE_LIBUNISTRING
 /* Auxiliary function, also used by u8_chr, u8_strchr, u8_strrchr.  */
 extern int
        u8_uctomb_aux (uint8_t *s, ucs4_t uc, int n);
@@ -322,7 +322,7 @@ u8_uctomb (uint8_t *s, ucs4_t uc, int n)
 # endif
 #endif
 
-#if defined GNULIB_UNISTR_U16_UCTOMB || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U16_UCTOMB || HAVE_LIBUNISTRING
 /* Auxiliary function, also used by u16_chr, u16_strchr, u16_strrchr.  */
 extern int
        u16_uctomb_aux (uint16_t *s, ucs4_t uc, int n);
@@ -344,7 +344,7 @@ u16_uctomb (uint16_t *s, ucs4_t uc, int n)
 # endif
 #endif
 
-#if defined GNULIB_UNISTR_U32_UCTOMB || HAVE_LIBUNISTRING
+#if GNULIB_UNISTR_U32_UCTOMB || HAVE_LIBUNISTRING
 # if !HAVE_INLINE
 extern int
        u32_uctomb (uint32_t *s, ucs4_t uc, int n);