Import new gnulib.

m4/intdiv0.m4

@@ -1,5 +1,5 @@
-# intdiv0.m4 serial 4 (gettext-0.18.2)
-dnl Copyright (C) 2002, 2007-2008, 2010 Free Software Foundation, Inc.
+# intdiv0.m4 serial 6 (gettext-0.18.2)
+dnl Copyright (C) 2002, 2007-2008, 2010-2013 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.
@@ -18,7 +18,7 @@ AC_DEFUN([gt_INTDIV0],
 changequote(,)dnl
       case "$host_os" in
         macos* | darwin[6-9]* | darwin[1-9][0-9]*)
-          # On MacOS X 10.2 or newer, just assume the same as when cross-
+          # On Mac OS X 10.2 or newer, just assume the same as when cross-
           # compiling. If we were to perform the real test, 1 Crash Report
           # dialog window would pop up.
           case "$host_cpu" in
@@ -60,7 +60,7 @@ int main ()
 
   z = x / y;
   nan = y / y;
-  exit (1);
+  exit (2);
 }
 ]])],
           [gt_cv_int_divbyzero_sigfpe=yes],