Merge from gnulib.

This incorporates:
2014-09-11 fcntl-h: fix compilation with Intel C++ compiler
2014-09-04 pthread, pthread_sigmask, threadlib: port to Ubuntu 14.04

3 files changed, 12 insertions, 5 deletions

diff --git a/ChangeLog b/ChangeLog
index cd005c3d1d7..adc0a509490 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2014-09-23  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Merge from gnulib, incorporating:
+        2014-09-11 fcntl-h: fix compilation with Intel C++ compiler
+        2014-09-04 pthread, pthread_sigmask, threadlib: port to Ubuntu 14.04
+
 2014-09-22  Jan Djärv  <jan.h.d@swipnet.se>
 
         * configure.ac: Increase headerpad_extra to 1000, update the comment
diff --git a/lib/fcntl.in.h b/lib/fcntl.in.h
index e23b4b2bcdd..f63cd6a734c 100644
--- a/lib/fcntl.in.h
+++ b/lib/fcntl.in.h
@@ -34,7 +34,7 @@
    extern "C" { ... } block, which leads to errors in C++ mode with the
    overridden <sys/stat.h> from gnulib.  These errors are known to be gone
    with g++ version >= 4.3.  */
-#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
+#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))))
 # include <sys/stat.h>
 #endif
 #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
@@ -53,7 +53,7 @@
    extern "C" { ... } block, which leads to errors in C++ mode with the
    overridden <sys/stat.h> from gnulib.  These errors are known to be gone
    with g++ version >= 4.3.  */
-#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
+#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))))
 # include <sys/stat.h>
 #endif
 /* The include_next requires a split double-inclusion guard.  */
diff --git a/m4/pthread_sigmask.m4 b/m4/pthread_sigmask.m4
index 2b3347f992d..5153828a969 100644
--- a/m4/pthread_sigmask.m4
+++ b/m4/pthread_sigmask.m4
@@ -1,4 +1,4 @@
-# pthread_sigmask.m4 serial 14
+# pthread_sigmask.m4 serial 15
 dnl Copyright (C) 2011-2014 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -40,7 +40,7 @@ AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK],
              LIBS="$gl_save_LIBS"
             ])
           if test $gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD = yes; then
-            dnl pthread_sigmask is available with -lpthread.
+            dnl pthread_sigmask is available with -pthread or -lpthread.
             LIB_PTHREAD_SIGMASK="$LIBMULTITHREAD"
           else
             dnl pthread_sigmask is not available at all.
@@ -86,7 +86,7 @@ AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK],
   AC_SUBST([LIB_PTHREAD_SIGMASK])
   dnl We don't need a variable LTLIB_PTHREAD_SIGMASK, because when
   dnl "$gl_threads_api" = posix, $LTLIBMULTITHREAD and $LIBMULTITHREAD are the
-  dnl same: either both empty or both "-lpthread".
+  dnl same.
 
   dnl Now test for some bugs in the system function.
   if test $HAVE_PTHREAD_SIGMASK = 1; then
@@ -98,6 +98,7 @@ AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK],
     dnl no effect.
     if test -z "$LIB_PTHREAD_SIGMASK"; then
       case " $LIBS " in
+        *' -pthread '*) ;;
         *' -lpthread '*) ;;
         *)
           AC_CACHE_CHECK([whether pthread_sigmask works without -lpthread],