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37 lines
1.3 KiB
Plaintext
37 lines
1.3 KiB
Plaintext
# Check for setmode, DOS style.
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# Copyright 2001-2025 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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AC_DEFUN([AC_FUNC_SETMODE_DOS],
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[AC_CHECK_HEADERS_ONCE([fcntl.h unistd.h])
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AC_CACHE_CHECK([for DOS-style setmode],
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[ac_cv_func_setmode_dos],
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[AC_LINK_IFELSE([AC_LANG_PROGRAM(
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[[#include <io.h>
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#if HAVE_FCNTL_H
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# include <fcntl.h>
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#endif
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#if HAVE_UNISTD_H
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# include <unistd.h>
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#endif]],
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[int ret = setmode && setmode (1, O_BINARY);])],
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[ac_cv_func_setmode_dos=yes],
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[ac_cv_func_setmode_dos=no])])
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if test $ac_cv_func_setmode_dos = yes; then
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AC_DEFINE([HAVE_SETMODE_DOS], [1],
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[Define to 1 if you have the DOS-style `setmode' function.])
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fi])
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