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# opendir.m4 serial 5
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dnl Copyright (C) 2011-2018 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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AC_DEFUN([gl_FUNC_OPENDIR],
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[
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AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
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AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
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AC_CHECK_FUNCS([opendir])
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if test $ac_cv_func_opendir = no; then
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HAVE_OPENDIR=0
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fi
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dnl Replace opendir() for supporting the gnulib-defined fchdir() function,
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dnl to keep fchdir's bookkeeping up-to-date.
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m4_ifdef([gl_FUNC_FCHDIR], [
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gl_TEST_FCHDIR
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if test $HAVE_FCHDIR = 0; then
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if test $HAVE_OPENDIR = 1; then
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REPLACE_OPENDIR=1
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fi
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fi
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])
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dnl Replace opendir() on OS/2 kLIBC to support dirfd() function replaced
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dnl by gnulib.
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case $host_os,$HAVE_OPENDIR in
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os2*,1)
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REPLACE_OPENDIR=1;;
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esac
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])
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