1 # mbstate_t.m4 serial 12 2 dnl Copyright (C) 2000-2002, 2008, 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 # 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 # ----------------- 15 AC_DEFUN([AC_TYPE_MBSTATE_T], 16 [ 17 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl for HP-UX 11.11 18 19 AC_CACHE_CHECK([for mbstate_t], [ac_cv_type_mbstate_t], 20 [AC_COMPILE_IFELSE( 21 [AC_LANG_PROGRAM( 22 [AC_INCLUDES_DEFAULT[ 23 # include <wchar.h>]], 24 [[mbstate_t x; return sizeof x;]])], 25 [ac_cv_type_mbstate_t=yes], 26 [ac_cv_type_mbstate_t=no])]) 27 if test $ac_cv_type_mbstate_t = yes; then 28 AC_DEFINE([HAVE_MBSTATE_T], [1], 29 [Define to 1 if <wchar.h> declares mbstate_t.]) 30 else 31 AC_DEFINE([mbstate_t], [int], 32 [Define to a type if <wchar.h> does not define.]) 33 fi 34 ]) 35
