Blame gnulib/m4/wint_t.m4
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# wint_t.m4 serial 5 (gettext-0.18.2)
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dnl Copyright (C) 2003, 2007-2014 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl From Bruno Haible.
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dnl Test whether <wchar.h> has the 'wint_t' type.
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dnl Prerequisite: AC_PROG_CC
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AC_DEFUN([gt_TYPE_WINT_T],
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[
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AC_CACHE_CHECK([for wint_t], [gt_cv_c_wint_t],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[
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/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
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<wchar.h>.
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BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
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before <wchar.h>. */
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#include <stddef.h>
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#include <stdio.h>
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#include <time.h>
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#include <wchar.h>
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wint_t foo = (wchar_t)'\0';]],
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[[]])],
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[gt_cv_c_wint_t=yes],
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[gt_cv_c_wint_t=no])])
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if test $gt_cv_c_wint_t = yes; then
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AC_DEFINE([HAVE_WINT_T], [1], [Define if you have the 'wint_t' type.])
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fi
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])
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