It appears that the test in gnulib/m4/getcwd-path-max.m4 fails on Mac OS X 10.5.8, leaving behind a deep directory tree that $ac_clean_files doesn't properly clean up.
Is there any way to get "configure" to succeed on such a platform? Is Mac OS X 10.5.8 still a supported target for gnulib? If additional details are needed, please see the original bug report at https://savannah.gnu.org/bugs/index.php?57461 Thanks, James.
