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This incorporates: 2019-09-22 Update some URLs 2019-09-15 fcntl-h: fix compilation error of creat.c on MSVC 2019-09-15 creat: new module 2019-09-15 access: new module 2019-09-09 Add option to assume best, not worst, when cross-compiling. * build-aux/config.guess, build-aux/config.sub, doc/misc/texinfo.tex: * lib/careadlinkat.c, lib/careadlinkat.h, lib/count-leading-zeros.h: * lib/count-trailing-zeros.h, lib/diffseq.h, lib/fcntl.in.h: * lib/ftoastr.c, lib/get-permissions.c: * lib/ieee754.in.h, lib/inttypes.in.h, lib/mktime.c, lib/open.c: * lib/pathmax.h, lib/pipe2.c, lib/stddef.in.h, lib/stdint.in.h: * lib/stdlib.in.h, lib/str-two-way.h, lib/string.in.h, lib/time.in.h: * lib/timegm.c, lib/unistd.in.h, m4/canonicalize.m4: * m4/extern-inline.m4, m4/fcntl_h.m4, m4/fdopendir.m4: * m4/getgroups.m4, m4/getopt.m4, m4/gettimeofday.m4: * m4/gnulib-common.m4, m4/largefile.m4: * m4/lstat.m4, m4/memmem.m4, m4/mktime.m4, m4/nocrash.m4, m4/open.m4: * m4/pselect.m4, m4/putenv.m4, m4/readlink.m4, m4/regex.m4: * m4/symlink.m4, m4/unistd_h.m4, m4/utimens.m4, m4/utimes.m4: Copy from Gnulib. * lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate. * m4/open-slash.m4: New file, copied from Gnulib.
64 lines
1.8 KiB
Plaintext
64 lines
1.8 KiB
Plaintext
# serial 12
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# See if we need to provide fdopendir.
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dnl Copyright (C) 2009-2019 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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# Written by Eric Blake.
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AC_DEFUN([gl_FUNC_FDOPENDIR],
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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_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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dnl FreeBSD 7.3 has the function, but failed to declare it.
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AC_CHECK_DECLS([fdopendir], [], [HAVE_DECL_FDOPENDIR=0], [[
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#include <dirent.h>
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]])
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AC_CHECK_FUNCS_ONCE([fdopendir])
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if test $ac_cv_func_fdopendir = no; then
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HAVE_FDOPENDIR=0
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else
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AC_CACHE_CHECK([whether fdopendir works],
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[gl_cv_func_fdopendir_works],
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[AC_RUN_IFELSE([AC_LANG_PROGRAM([[
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#include <dirent.h>
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#include <fcntl.h>
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#include <unistd.h>
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#if !HAVE_DECL_FDOPENDIR
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extern
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# ifdef __cplusplus
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"C"
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# endif
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DIR *fdopendir (int);
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#endif
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]], [int result = 0;
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int fd = open ("conftest.c", O_RDONLY);
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if (fd < 0) result |= 1;
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if (fdopendir (fd)) result |= 2;
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if (close (fd)) result |= 4;
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return result;])],
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[gl_cv_func_fdopendir_works=yes],
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[gl_cv_func_fdopendir_works=no],
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[case "$host_os" in
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# Guess yes on glibc systems.
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*-gnu*) gl_cv_func_fdopendir_works="guessing yes" ;;
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# Guess yes on musl systems.
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*-musl*) gl_cv_func_fdopendir_works="guessing yes" ;;
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# If we don't know, obey --enable-cross-guesses.
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*) gl_cv_func_fdopendir_works="$gl_cross_guess_normal" ;;
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esac
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])])
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case "$gl_cv_func_fdopendir_works" in
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*yes) ;;
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*)
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REPLACE_FDOPENDIR=1
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;;
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esac
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fi
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])
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