Home | History | Annotate | Download | only in m4
      1 # wint_t.m4 serial 4 (gettext-0.18)
      2 dnl Copyright (C) 2003, 2007-2009 Free Software Foundation, Inc.
      3 dnl This file is free software; the Free Software Foundation
      4 dnl gives unlimited permission to copy and/or distribute it,
      5 dnl with or without modifications, as long as this notice is preserved.
      6 
      7 dnl From Bruno Haible.
      8 dnl Test whether <wchar.h> has the 'wint_t' type.
      9 dnl Prerequisite: AC_PROG_CC
     10 
     11 AC_DEFUN([gt_TYPE_WINT_T],
     12 [
     13   AC_CACHE_CHECK([for wint_t], [gt_cv_c_wint_t],
     14     [AC_TRY_COMPILE([
     15 /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
     16    <wchar.h>.
     17    BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
     18    before <wchar.h>.  */
     19 #include <stddef.h>
     20 #include <stdio.h>
     21 #include <time.h>
     22 #include <wchar.h>
     23        wint_t foo = (wchar_t)'\0';], ,
     24        [gt_cv_c_wint_t=yes], [gt_cv_c_wint_t=no])])
     25   if test $gt_cv_c_wint_t = yes; then
     26     AC_DEFINE([HAVE_WINT_T], [1], [Define if you have the 'wint_t' type.])
     27   fi
     28 ])
     29