-# serial 2
+# serial 8
# See if we need to provide fdopendir.
-dnl Copyright (C) 2009 Free Software Foundation, Inc.
+dnl Copyright (C) 2009-2011 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_FDOPENDIR],
[
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+ dnl FreeBSD 7.3 has the function, but failed to declare it.
+ AC_CHECK_DECLS([fdopendir], [], [HAVE_DECL_FDOPENDIR=0], [[
+#include <dirent.h>
+ ]])
AC_CHECK_FUNCS_ONCE([fdopendir])
if test $ac_cv_func_fdopendir = no; then
- AC_LIBOBJ([openat-proc])
- AC_LIBOBJ([fdopendir])
- gl_REPLACE_DIRENT_H
HAVE_FDOPENDIR=0
else
AC_CACHE_CHECK([whether fdopendir works],
[AC_RUN_IFELSE([AC_LANG_PROGRAM([[
#include <dirent.h>
#include <fcntl.h>
-]], [int fd = open ("conftest.h", O_RDONLY);
- if (fd < 0) return 2;
- return !!fdopendir (fd);])],
+#include <unistd.h>
+#if !HAVE_DECL_FDOPENDIR
+extern
+# ifdef __cplusplus
+"C"
+# endif
+DIR *fdopendir (int);
+#endif
+]], [int result = 0;
+ int fd = open ("conftest.c", O_RDONLY);
+ if (fd < 0) result |= 1;
+ if (fdopendir (fd)) result |= 2;
+ if (close (fd)) result |= 4;
+ return result;])],
[gl_cv_func_fdopendir_works=yes],
[gl_cv_func_fdopendir_works=no],
[gl_cv_func_fdopendir_works="guessing no"])])
if test "$gl_cv_func_fdopendir_works" != yes; then
REPLACE_FDOPENDIR=1
- gl_REPLACE_DIRENT_H
- AC_LIBOBJ([fdopendir])
fi
fi
])