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dnl Copyright (C) 2008-2023 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_CLOSE], |
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[ |
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AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) |
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m4_ifdef([gl_MSVC_INVAL], [ |
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AC_REQUIRE([gl_MSVC_INVAL]) |
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if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then |
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REPLACE_CLOSE=1 |
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fi |
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]) |
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m4_ifdef([gl_PREREQ_SYS_H_WINSOCK2], [ |
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gl_PREREQ_SYS_H_WINSOCK2 |
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if test $UNISTD_H_HAVE_WINSOCK2_H = 1; then |
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dnl Even if the 'socket' module is not used here, another part of the |
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dnl application may use it and pass file descriptors that refer to |
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dnl sockets to the close() function. So enable the support for sockets. |
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REPLACE_CLOSE=1 |
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fi |
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]) |
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dnl Replace close() 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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if test $REPLACE_CLOSE = 0; then |
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gl_TEST_FCHDIR |
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if test $HAVE_FCHDIR = 0; then |
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REPLACE_CLOSE=1 |
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fi |
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fi |
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]) |
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]) |
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