-# serial 1
+# serial 6
# 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 $ac_cv_func_fdopendir = no; then
AC_LIBOBJ([openat-proc])
AC_LIBOBJ([fdopendir])
- gl_REPLACE_DIRENT_H
HAVE_FDOPENDIR=0
+ else
+ AC_CACHE_CHECK([whether fdopendir works],
+ [gl_cv_func_fdopendir_works],
+ [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#include <dirent.h>
+#include <fcntl.h>
+#include <unistd.h>
+#if !HAVE_DECL_FDOPENDIR
+extern DIR *fdopendir (int);
+#endif
+]], [int result = 0;
+ int fd = open ("conftest.c", O_RDONLY);
+ if (fd < 0) result |= 1;
+ if (fdopendir (fd)) result |= 2;
+ if (close (fd)) result |= 4;
+ return result;])],
+ [gl_cv_func_fdopendir_works=yes],
+ [gl_cv_func_fdopendir_works=no],
+ [gl_cv_func_fdopendir_works="guessing no"])])
+ if test "$gl_cv_func_fdopendir_works" != yes; then
+ REPLACE_FDOPENDIR=1
+ AC_LIBOBJ([fdopendir])
+ fi
fi
])