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| 1 | # wchar_t.m4 serial 1 (gettext-0.12)
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| 2 | dnl Copyright (C) 2002-2003 Free Software Foundation, Inc.
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| 3 | dnl This file is free software; the Free Software Foundation
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| 4 | dnl gives unlimited permission to copy and/or distribute it,
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| 5 | dnl with or without modifications, as long as this notice is preserved.
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| 6 |
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| 7 | dnl From Bruno Haible.
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| 8 | dnl Test whether <stddef.h> has the 'wchar_t' type.
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| 9 | dnl Prerequisite: AC_PROG_CC
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| 10 |
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| 11 | AC_DEFUN([gt_TYPE_WCHAR_T],
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| 12 | [
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| 13 | AC_CACHE_CHECK([for wchar_t], gt_cv_c_wchar_t,
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| 14 | [AC_TRY_COMPILE([#include <stddef.h>
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| 15 | wchar_t foo = (wchar_t)'\0';], ,
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| 16 | gt_cv_c_wchar_t=yes, gt_cv_c_wchar_t=no)])
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| 17 | if test $gt_cv_c_wchar_t = yes; then
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| 18 | AC_DEFINE(HAVE_WCHAR_T, 1, [Define if you have the 'wchar_t' type.])
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| 19 | fi
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| 20 | ])
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