1# closedir.m4 serial 6 2dnl Copyright (C) 2011-2021 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7AC_DEFUN([gl_FUNC_CLOSEDIR], 8[ 9 AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) 10 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles 11 12 AC_CHECK_FUNCS([closedir]) 13 if test $ac_cv_func_closedir = no; then 14 HAVE_CLOSEDIR=0 15 fi 16 dnl Replace closedir() for supporting the gnulib-defined fchdir() function, 17 dnl to keep fchdir's bookkeeping up-to-date. 18 m4_ifdef([gl_FUNC_FCHDIR], [ 19 gl_TEST_FCHDIR 20 if test $HAVE_FCHDIR = 0; then 21 if test $HAVE_CLOSEDIR = 1; then 22 REPLACE_CLOSEDIR=1 23 fi 24 fi 25 ]) 26 dnl Replace closedir() for supporting the gnulib-defined dirfd() function. 27 case $host_os,$HAVE_CLOSEDIR in 28 os2*,1) 29 REPLACE_CLOSEDIR=1;; 30 esac 31]) 32