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c0c3707f CB |
1 | # close.m4 serial 9 |
2 | dnl Copyright (C) 2008-2019 Free Software Foundation, Inc. | |
6ec2e0f5 SDJ |
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. | |
6 | ||
7 | AC_DEFUN([gl_FUNC_CLOSE], | |
8 | [ | |
9 | AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) | |
c0c3707f CB |
10 | m4_ifdef([gl_MSVC_INVAL], [ |
11 | AC_REQUIRE([gl_MSVC_INVAL]) | |
12 | if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then | |
13 | REPLACE_CLOSE=1 | |
14 | fi | |
15 | ]) | |
6ec2e0f5 SDJ |
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. | |
22 | REPLACE_CLOSE=1 | |
23 | fi | |
24 | ]) | |
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 | |
29 | gl_TEST_FCHDIR | |
30 | if test $HAVE_FCHDIR = 0; then | |
31 | REPLACE_CLOSE=1 | |
32 | fi | |
33 | fi | |
34 | ]) | |
35 | ]) |