updated gnulib

10 files changed, 264 insertions, 12 deletions

diff --git a/gl/Makefile.am b/gl/Makefile.am
index 8c46c18f3d..79b79b3ac2 100644
--- a/gl/Makefile.am
+++ b/gl/Makefile.am
@@ -565,15 +565,16 @@ EXTRA_libgnu_la_SOURCES += getsubopt.c
 
 ## begin gnulib module gettext
 
-# This is for those projects which use "gettextize --intl" to put a source-code
-# copy of libintl into their package. In such projects, every Makefile.am needs
+# If your project uses "gettextize --intl" to put a source-code
+# copy of libintl into the package, every Makefile.am needs
 # -I$(top_builddir)/intl, so that <libintl.h> can be found in this directory.
-# For the Makefile.ams in other directories it is the maintainer's
-# responsibility; for the one from gnulib we do it here.
-# This option has no effect when the user disables NLS (because then the intl
-# directory contains no libintl.h file) or when the project does not use
-# "gettextize --intl".
-AM_CPPFLAGS += -I$(top_builddir)/intl
+# Here's one way to do this:
+#AM_CPPFLAGS += -I$(top_builddir)/intl
+# This option has no effect when the user disables NLS (because then
+# the intl directory contains no libintl.h file).  This option is not
+# enabled by default because the intl directory might not exist if
+# your project does not use "gettext --intl", and some compilers
+# complain about -I options applied to nonexistent directories.
 
 EXTRA_DIST += $(top_srcdir)/build-aux/config.rpath
 
diff --git a/gl/m4/extern-inline.m4 b/gl/m4/extern-inline.m4
index 0152f29326..94b46dde07 100644
--- a/gl/m4/extern-inline.m4
+++ b/gl/m4/extern-inline.m4
@@ -21,13 +21,21 @@ AC_DEFUN([gl_EXTERN_INLINE],
    Suppress extern inline with HP-UX cc, as it appears to be broken; see
    <http://lists.gnu.org/archive/html/bug-texinfo/2013-02/msg00030.html>.
 
-   Suppress the use of extern inline on Apple's platforms,
-   as Libc-825.25 (2012-09-19) is incompatible with it; see
+   Suppress extern inline with Sun C in standards-conformance mode, as it
+   mishandles inline functions that call each other.  E.g., for 'inline void f
+   (void) { } inline void g (void) { f (); }', c99 incorrectly complains
+   'reference to static identifier "f" in extern inline function'.
+   This bug was observed with Sun C 5.12 SunOS_i386 2011/11/16.
+
+   Suppress the use of extern inline on Apple's platforms, as Libc at least
+   through Libc-825.26 (2013-04-09) is incompatible with it; see, e.g.,
    <http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00023.html>.
    Perhaps Apple will fix this some day.  */
 #if ((__GNUC__ \
       ? defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ \
-      : 199901L <= __STDC_VERSION__ && !defined __HP_cc) \
+      : (199901L <= __STDC_VERSION__ \
+         && !defined __HP_cc \
+         && !(defined __SUNPRO_C && __STDC__))) \
      && !defined __APPLE__)
 # define _GL_INLINE inline
 # define _GL_EXTERN_INLINE extern inline
diff --git a/gl/m4/getdtablesize.m4 b/gl/m4/getdtablesize.m4
new file mode 100644
index 0000000000..8f04b3b8c2
--- /dev/null
+++ b/gl/m4/getdtablesize.m4
@@ -0,0 +1,17 @@
+# getdtablesize.m4 serial 4
+dnl Copyright (C) 2008-2013 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_GETDTABLESIZE],
+[
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  AC_CHECK_FUNCS_ONCE([getdtablesize])
+  if test $ac_cv_func_getdtablesize != yes; then
+    HAVE_GETDTABLESIZE=0
+  fi
+])
+
+# Prerequisites of lib/getdtablesize.c.
+AC_DEFUN([gl_PREREQ_GETDTABLESIZE], [:])
diff --git a/gl/m4/gnulib-comp.m4 b/gl/m4/gnulib-comp.m4
index 4d6a3a42d4..24ed4b30d1 100644
--- a/gl/m4/gnulib-comp.m4
+++ b/gl/m4/gnulib-comp.m4
@@ -125,6 +125,8 @@ AC_DEFUN([gl_EARLY],
   # Code from module getcwd-lgpl-tests:
   # Code from module getdelim:
   # Code from module getdelim-tests:
+  # Code from module getdtablesize:
+  # Code from module getdtablesize-tests:
   # Code from module getline:
   # Code from module getline-tests:
   # Code from module getopt-gnu:
@@ -958,6 +960,12 @@ changequote([, ])dnl
     AC_LIBOBJ([getcwd-lgpl])
   fi
   gl_UNISTD_MODULE_INDICATOR([getcwd])
+  gl_FUNC_GETDTABLESIZE
+  if test $HAVE_GETDTABLESIZE = 0; then
+    AC_LIBOBJ([getdtablesize])
+    gl_PREREQ_GETDTABLESIZE
+  fi
+  gl_UNISTD_MODULE_INDICATOR([getdtablesize])
   gl_FUNC_GETPAGESIZE
   if test $REPLACE_GETPAGESIZE = 1; then
     AC_LIBOBJ([getpagesize])
@@ -1422,6 +1430,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/getaddrinfo.m4
   m4/getcwd.m4
   m4/getdelim.m4
+  m4/getdtablesize.m4
   m4/getline.m4
   m4/getopt.m4
   m4/getpagesize.m4
@@ -1638,6 +1647,7 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/test-getaddrinfo.c
   tests/test-getcwd-lgpl.c
   tests/test-getdelim.c
+  tests/test-getdtablesize.c
   tests/test-getline.c
   tests/test-getopt.c
   tests/test-getopt.h
@@ -1759,6 +1769,7 @@ AC_DEFUN([gl_FILE_LIST], [
   tests=lib/fdopen.c
   tests=lib/ftruncate.c
   tests=lib/getcwd-lgpl.c
+  tests=lib/getdtablesize.c
   tests=lib/getpagesize.c
   tests=lib/glthread/lock.c
   tests=lib/glthread/lock.h
diff --git a/gl/tests/Makefile.am b/gl/tests/Makefile.am
index 12e4a27a3a..0b3462cbb8 100644
--- a/gl/tests/Makefile.am
+++ b/gl/tests/Makefile.am
@@ -432,6 +432,23 @@ EXTRA_DIST += test-getdelim.c signature.h macros.h
 
 ## end   gnulib module getdelim-tests
 
+## begin gnulib module getdtablesize
+
+
+EXTRA_DIST += getdtablesize.c
+
+EXTRA_libtests_a_SOURCES += getdtablesize.c
+
+## end   gnulib module getdtablesize
+
+## begin gnulib module getdtablesize-tests
+
+TESTS += test-getdtablesize
+check_PROGRAMS += test-getdtablesize
+EXTRA_DIST += test-getdtablesize.c signature.h macros.h
+
+## end   gnulib module getdtablesize-tests
+
 ## begin gnulib module getline-tests
 
 TESTS += test-getline
diff --git a/gl/tests/getdtablesize.c b/gl/tests/getdtablesize.c
new file mode 100644
index 0000000000..9947405af6
--- /dev/null
+++ b/gl/tests/getdtablesize.c
@@ -0,0 +1,86 @@
+/* getdtablesize() function for platforms that don't have it.
+   Copyright (C) 2008-2013 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2008.
+
+   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 <unistd.h>
+
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+
+#include <stdio.h>
+
+#include "msvc-inval.h"
+
+#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
+static int
+_setmaxstdio_nothrow (int newmax)
+{
+  int result;
+
+  TRY_MSVC_INVAL
+    {
+      result = _setmaxstdio (newmax);
+    }
+  CATCH_MSVC_INVAL
+    {
+      result = -1;
+    }
+  DONE_MSVC_INVAL;
+
+  return result;
+}
+# define _setmaxstdio _setmaxstdio_nothrow
+#endif
+
+/* Cache for the previous getdtablesize () result.  */
+static int dtablesize;
+
+int
+getdtablesize (void)
+{
+  if (dtablesize == 0)
+    {
+      /* We are looking for the number N such that the valid file descriptors
+         are 0..N-1.  It can be obtained through a loop as follows:
+           {
+             int fd;
+             for (fd = 3; fd < 65536; fd++)
+               if (dup2 (0, fd) == -1)
+                 break;
+             return fd;
+           }
+         On Windows XP, the result is 2048.
+         The drawback of this loop is that it allocates memory for a libc
+         internal array that is never freed.
+
+         The number N can also be obtained as the upper bound for
+         _getmaxstdio ().  _getmaxstdio () returns the maximum number of open
+         FILE objects.  The sanity check in _setmaxstdio reveals the maximum
+         number of file descriptors.  This too allocates memory, but it is
+         freed when we call _setmaxstdio with the original value.  */
+      int orig_max_stdio = _getmaxstdio ();
+      unsigned int bound;
+      for (bound = 0x10000; _setmaxstdio (bound) < 0; bound = bound / 2)
+        ;
+      _setmaxstdio (orig_max_stdio);
+      dtablesize = bound;
+    }
+  return dtablesize;
+}
+
+#endif
diff --git a/gl/tests/glthread/threadlib.c b/gl/tests/glthread/threadlib.c
new file mode 100644
index 0000000000..b447657302
--- /dev/null
+++ b/gl/tests/glthread/threadlib.c
@@ -0,0 +1,73 @@
+/* Multithreading primitives.
+   Copyright (C) 2005-2013 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, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2005.  */
+
+#include <config.h>
+
+/* ========================================================================= */
+
+#if USE_POSIX_THREADS
+
+/* Use the POSIX threads library.  */
+
+# include <pthread.h>
+# include <stdlib.h>
+
+# if PTHREAD_IN_USE_DETECTION_HARD
+
+/* The function to be executed by a dummy thread.  */
+static void *
+dummy_thread_func (void *arg)
+{
+  return arg;
+}
+
+int
+glthread_in_use (void)
+{
+  static int tested;
+  static int result; /* 1: linked with -lpthread, 0: only with libc */
+
+  if (!tested)
+    {
+      pthread_t thread;
+
+      if (pthread_create (&thread, NULL, dummy_thread_func, NULL) != 0)
+        /* Thread creation failed.  */
+        result = 0;
+      else
+        {
+          /* Thread creation works.  */
+          void *retval;
+          if (pthread_join (thread, &retval) != 0)
+            abort ();
+          result = 1;
+        }
+      tested = 1;
+    }
+  return result;
+}
+
+# endif
+
+#endif
+
+/* ========================================================================= */
+
+/* This declaration is solely to ensure that after preprocessing
+   this file is never empty.  */
+typedef int dummy;
diff --git a/gl/tests/test-dup2.c b/gl/tests/test-dup2.c
index 9600c850b1..ecb2692d2a 100644
--- a/gl/tests/test-dup2.c
+++ b/gl/tests/test-dup2.c
@@ -26,6 +26,10 @@ SIGNATURE_CHECK (dup2, int, (int, int));
 #include <errno.h>
 #include <fcntl.h>
 
+#if HAVE_SYS_RESOURCE_H
+# include <sys/resource.h>
+#endif
+
 #include "binary-io.h"
 
 #if GNULIB_TEST_CLOEXEC
@@ -103,6 +107,7 @@ main (void)
 {
   const char *file = "test-dup2.tmp";
   char buffer[1];
+  int bad_fd = getdtablesize ();
   int fd = open (file, O_CREAT | O_TRUNC | O_RDWR, 0600);
 
   /* Assume std descriptors were provided by invoker.  */
@@ -146,7 +151,7 @@ main (void)
   ASSERT (dup2 (fd, -2) == -1);
   ASSERT (errno == EBADF);
   errno = 0;
-  ASSERT (dup2 (fd, 10000000) == -1);
+  ASSERT (dup2 (fd, bad_fd) == -1);
   ASSERT (errno == EBADF);
 
   /* Using dup2 can skip fds.  */
diff --git a/gl/tests/test-getdtablesize b/gl/tests/test-getdtablesize
new file mode 100755
index 0000000000..3dcb228646
--- /dev/null
+++ b/gl/tests/test-getdtablesize
diff --git a/gl/tests/test-getdtablesize.c b/gl/tests/test-getdtablesize.c
new file mode 100644
index 0000000000..7046481ba3
--- /dev/null
+++ b/gl/tests/test-getdtablesize.c
@@ -0,0 +1,34 @@
+/* Test of getdtablesize() function.
+   Copyright (C) 2008-2013 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>, 2008.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (getdtablesize, int, (void));
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  ASSERT (getdtablesize () >= 3);
+
+  return 0;
+}