wchar_t.m4 818 B

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  1. # wchar_t.m4 serial 4 (gettext-0.18.2)
  2. dnl Copyright (C) 2002-2003, 2008-2011 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. dnl From Bruno Haible.
  7. dnl Test whether <stddef.h> has the 'wchar_t' type.
  8. dnl Prerequisite: AC_PROG_CC
  9. AC_DEFUN([gt_TYPE_WCHAR_T],
  10. [
  11. AC_CACHE_CHECK([for wchar_t], [gt_cv_c_wchar_t],
  12. [AC_COMPILE_IFELSE(
  13. [AC_LANG_PROGRAM(
  14. [[#include <stddef.h>
  15. wchar_t foo = (wchar_t)'\0';]],
  16. [[]])],
  17. [gt_cv_c_wchar_t=yes],
  18. [gt_cv_c_wchar_t=no])])
  19. if test $gt_cv_c_wchar_t = yes; then
  20. AC_DEFINE([HAVE_WCHAR_T], [1], [Define if you have the 'wchar_t' type.])
  21. fi
  22. ])