| # opendir.m4 serial 5 |
| dnl Copyright (C) 2011-2021 Free Software Foundation, Inc. |
| dnl This file is free software; the Free Software Foundation |
| dnl gives unlimited permission to copy and/or distribute it, |
| dnl with or without modifications, as long as this notice is preserved. |
| |
| AC_DEFUN([gl_FUNC_OPENDIR], |
| [ |
| AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) |
| AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles |
| |
| AC_CHECK_FUNCS([opendir]) |
| if test $ac_cv_func_opendir = no; then |
| HAVE_OPENDIR=0 |
| fi |
| dnl Replace opendir() for supporting the gnulib-defined fchdir() function, |
| dnl to keep fchdir's bookkeeping up-to-date. |
| m4_ifdef([gl_FUNC_FCHDIR], [ |
| gl_TEST_FCHDIR |
| if test $HAVE_FCHDIR = 0; then |
| if test $HAVE_OPENDIR = 1; then |
| REPLACE_OPENDIR=1 |
| fi |
| fi |
| ]) |
| dnl Replace opendir() on OS/2 kLIBC to support dirfd() function replaced |
| dnl by gnulib. |
| case $host_os,$HAVE_OPENDIR in |
| os2*,1) |
| REPLACE_OPENDIR=1;; |
| esac |
| ]) |
