2 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_CLOSE],
9 AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
10 m4_ifdef([gl_MSVC_INVAL], [
11 AC_REQUIRE([gl_MSVC_INVAL])
12 if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
16 m4_ifdef([gl_PREREQ_SYS_H_WINSOCK2], [
17 gl_PREREQ_SYS_H_WINSOCK2
18 if test $UNISTD_H_HAVE_WINSOCK2_H = 1; then
19 dnl Even if the 'socket' module is not used here, another part of the
20 dnl application may use it and pass file descriptors that refer to
21 dnl sockets to the close() function. So enable the support for sockets.
25 dnl Replace close() for supporting the gnulib-defined fchdir() function,
26 dnl to keep fchdir's bookkeeping up-to-date.
27 m4_ifdef([gl_FUNC_FCHDIR], [
28 if test $REPLACE_CLOSE = 0; then
30 if test $HAVE_FCHDIR = 0; then