1# mbstate_t.m4 serial 9 2dnl Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7# From Paul Eggert. 8 9# BeOS 5 has <wchar.h> but does not define mbstate_t, 10# so you can't declare an object of that type. 11# Check for this incompatibility with Standard C. 12 13# AC_TYPE_MBSTATE_T 14# ----------------- 15AC_DEFUN([AC_TYPE_MBSTATE_T], 16 [AC_CACHE_CHECK([for mbstate_t], ac_cv_type_mbstate_t, 17 [AC_COMPILE_IFELSE( 18 [AC_LANG_PROGRAM( 19 [AC_INCLUDES_DEFAULT 20# include <wchar.h>], 21 [mbstate_t x; return sizeof x;])], 22 [ac_cv_type_mbstate_t=yes], 23 [ac_cv_type_mbstate_t=no])]) 24 if test $ac_cv_type_mbstate_t = yes; then 25 AC_DEFINE([HAVE_MBSTATE_T], 1, 26 [Define to 1 if <wchar.h> declares mbstate_t.]) 27 else 28 AC_DEFINE([mbstate_t], int, 29 [Define to a type if <wchar.h> does not define.]) 30 fi]) 31