1 # close.m4 serial 8 2 dnl Copyright (C) 2008-2012 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. 6 7 AC_DEFUN([gl_FUNC_CLOSE], 8 [ 9 AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) 10 AC_REQUIRE([gl_MSVC_INVAL]) 11 if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then 12 REPLACE_CLOSE=1 13 fi 14 m4_ifdef([gl_PREREQ_SYS_H_WINSOCK2], [ 15 gl_PREREQ_SYS_H_WINSOCK2 16 if test $UNISTD_H_HAVE_WINSOCK2_H = 1; then 17 dnl Even if the 'socket' module is not used here, another part of the 18 dnl application may use it and pass file descriptors that refer to 19 dnl sockets to the close() function. So enable the support for sockets. 20 REPLACE_CLOSE=1 21 fi 22 ]) 23 dnl Replace close() for supporting the gnulib-defined fchdir() function, 24 dnl to keep fchdir's bookkeeping up-to-date. 25 m4_ifdef([gl_FUNC_FCHDIR], [ 26 if test $REPLACE_CLOSE = 0; then 27 gl_TEST_FCHDIR 28 if test $HAVE_FCHDIR = 0; then 29 REPLACE_CLOSE=1 30 fi 31 fi 32 ]) 33 ]) 34
