2 # See if we need to provide fdopendir.
4 dnl Copyright (C) 2009-2010 Free Software Foundation, Inc.
5 dnl This file is free software; the Free Software Foundation
6 dnl gives unlimited permission to copy and/or distribute it,
7 dnl with or without modifications, as long as this notice is preserved.
9 # Written by Eric Blake.
11 AC_DEFUN([gl_FUNC_FDOPENDIR],
13 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
14 AC_CHECK_FUNCS_ONCE([fdopendir])
15 if test $ac_cv_func_fdopendir = no; then
16 AC_LIBOBJ([openat-proc])
17 AC_LIBOBJ([fdopendir])
21 AC_CACHE_CHECK([whether fdopendir works],
22 [gl_cv_func_fdopendir_works],
23 [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
26 ]], [int fd = open ("conftest.c", O_RDONLY);
28 return !!fdopendir (fd);])],
29 [gl_cv_func_fdopendir_works=yes],
30 [gl_cv_func_fdopendir_works=no],
31 [gl_cv_func_fdopendir_works="guessing no"])])
32 if test "$gl_cv_func_fdopendir_works" != yes; then
35 AC_LIBOBJ([fdopendir])