Merge GDB 7.5.1

gdb/gnulib/m4/wint_t.m4

Index: gdb/gnulib/m4/wint_t.m4
diff --git a/gdb/gnulib/m4/wint_t.m4 b/gdb/gnulib/m4/wint_t.m4
deleted file mode 100644
index a0236e8d0e8ece99ae04c6ea304866b2f6fe1969..0000000000000000000000000000000000000000
--- a/gdb/gnulib/m4/wint_t.m4
+++ /dev/null
@@ -1,28 +0,0 @@
-# wint_t.m4 serial 4 (gettext-0.18)
-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,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Bruno Haible.
-dnl Test whether <wchar.h> has the 'wint_t' type.
-dnl Prerequisite: AC_PROG_CC
-
-AC_DEFUN([gt_TYPE_WINT_T],
-[
-  AC_CACHE_CHECK([for wint_t], [gt_cv_c_wint_t],
-    [AC_TRY_COMPILE([
-/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
-   <wchar.h>.
-   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
-   before <wchar.h>.  */
-#include <stddef.h>
-#include <stdio.h>
-#include <time.h>
-#include <wchar.h>
-       wint_t foo = (wchar_t)'\0';], ,
-       [gt_cv_c_wint_t=yes], [gt_cv_c_wint_t=no])])
-  if test $gt_cv_c_wint_t = yes; then
-    AC_DEFINE([HAVE_WINT_T], [1], [Define if you have the 'wint_t' type.])
-  fi
-])