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emacs/m4/fcntl_h.m4
Paul Eggert 78669517dc Update from Gnulib
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.
2019-09-22 23:51:44 -07:00

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# serial 16
# Configure fcntl.h.
dnl Copyright (C) 2006-2007, 2009-2019 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl Written by Paul Eggert.
AC_DEFUN([gl_FCNTL_H],
[
AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
AC_REQUIRE([gl_FCNTL_O_FLAGS])
gl_NEXT_HEADERS([fcntl.h])
dnl Ensure the type pid_t gets defined.
AC_REQUIRE([AC_TYPE_PID_T])
dnl Ensure the type mode_t gets defined.
AC_REQUIRE([AC_TYPE_MODE_T])
dnl Check for declarations of anything we want to poison if the
dnl corresponding gnulib module is not in use, if it is not common
dnl enough to be declared everywhere.
gl_WARN_ON_USE_PREPARE([[#include <fcntl.h>
]], [fcntl openat])
])
AC_DEFUN([gl_FCNTL_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
dnl Define it also as a C macro, for the benefit of the unit tests.
gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
AC_DEFUN([gl_FCNTL_H_DEFAULTS],
[
GNULIB_CREAT=0; AC_SUBST([GNULIB_CREAT])
GNULIB_FCNTL=0; AC_SUBST([GNULIB_FCNTL])
GNULIB_NONBLOCKING=0; AC_SUBST([GNULIB_NONBLOCKING])
GNULIB_OPEN=0; AC_SUBST([GNULIB_OPEN])
GNULIB_OPENAT=0; AC_SUBST([GNULIB_OPENAT])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_FCNTL=1; AC_SUBST([HAVE_FCNTL])
HAVE_OPENAT=1; AC_SUBST([HAVE_OPENAT])
REPLACE_CREAT=0; AC_SUBST([REPLACE_CREAT])
REPLACE_FCNTL=0; AC_SUBST([REPLACE_FCNTL])
REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN])
REPLACE_OPENAT=0; AC_SUBST([REPLACE_OPENAT])
])