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1 # wint_t.m4 serial 3 (gettext-0.18)
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2 dnl Copyright (C) 2003, 2007-2008 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 <wchar.h> has the 'wint_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_WINT_T],
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12 [
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13 AC_CACHE_CHECK([for wint_t], [gt_cv_c_wint_t],
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14 [AC_TRY_COMPILE([
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15 /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
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16 <wchar.h>.
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17 BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
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18 before <wchar.h>. */
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19 #include <stddef.h>
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20 #include <stdio.h>
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21 #include <time.h>
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22 #include <wchar.h>
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23 wint_t foo = (wchar_t)'\0';], ,
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24 [gt_cv_c_wint_t=yes], [gt_cv_c_wint_t=no])])
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25 if test $gt_cv_c_wint_t = yes; then
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26 AC_DEFINE([HAVE_WINT_T], 1, [Define if you have the 'wint_t' type.])
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27 fi
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28 ])
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