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| 1 | # mbrtowc.m4 serial 8
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| 2 | dnl Copyright (C) 2001-2002, 2004-2005 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 Paul Eggert
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| 8 |
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| 9 | dnl This file can be removed, and gl_FUNC_MBRTOWC replaced with
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| 10 | dnl AC_FUNC_MBRTOWC, when autoconf 2.60 can be assumed everywhere.
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| 11 |
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| 12 | AC_DEFUN([gl_FUNC_MBRTOWC],
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| 13 | [
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| 14 | dnl Same as AC_FUNC_MBRTOWC in autoconf-2.60.
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| 15 | AC_CACHE_CHECK([whether mbrtowc and mbstate_t are properly declared],
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| 16 | gl_cv_func_mbrtowc,
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| 17 | [AC_LINK_IFELSE(
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| 18 | [AC_LANG_PROGRAM(
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| 19 | [[#include <wchar.h>]],
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| 20 | [[wchar_t wc;
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| 21 | char const s[] = "";
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| 22 | size_t n = 1;
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| 23 | mbstate_t state;
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| 24 | return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));]])],
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| 25 | gl_cv_func_mbrtowc=yes,
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| 26 | gl_cv_func_mbrtowc=no)])
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| 27 | if test $gl_cv_func_mbrtowc = yes; then
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| 28 | AC_DEFINE([HAVE_MBRTOWC], 1,
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| 29 | [Define to 1 if mbrtowc and mbstate_t are properly declared.])
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| 30 | fi
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| 31 | ])
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