I just upgraded my system and "meld" as well. I'm using "cfg-update -u" to compare files that did change utilizing meld
When I try to compare two file as root using meld I get: meld /etc/ddclient/ddclient.conf /etc/ddclient/._cfg0000_ddclient.conf Traceback (most recent call last): File "/usr/bin/meld", line 173, in <module> main() File "/usr/bin/meld", line 165, in main new_window = app.parse_args(sys.argv[1:]) File "/usr/lib64/meld/meld/meldapp.py", line 169, in parse_args tab = open_paths(args, options.auto_compare, options.auto_merge) File "/usr/lib64/meld/meld/meldwindow.py", line 796, in open_paths tab = self.append_diff(paths, auto_compare, auto_merge) File "/usr/lib64/meld/meld/meldwindow.py", line 746, in append_diff return self.append_filediff(paths, merge_output=merge_output) File "/usr/lib64/meld/meld/meldwindow.py", line 703, in append_filediff doc = filediff.FileDiff(app.prefs, len(files)) File "/usr/lib64/meld/meld/filediff.py", line 214, in __init__ self._cached_match = CachedSequenceMatcher() File "/usr/lib64/meld/meld/filediff.py", line 72, in __init__ None, matchers.init_worker, maxtasksperchild=1) File "/usr/lib64/python2.7/multiprocessing/__init__.py", line 232, in Pool return Pool(processes, initializer, initargs, maxtasksperchild) File "/usr/lib64/python2.7/multiprocessing/pool.py", line 138, in __init__ self._setup_queues() File "/usr/lib64/python2.7/multiprocessing/pool.py", line 232, in _setup_queues from .queues import SimpleQueue File "/usr/lib64/python2.7/multiprocessing/queues.py", line 48, in <module> from multiprocessing.synchronize import Lock, BoundedSemaphore, Semaphore, Condition File "/usr/lib64/python2.7/multiprocessing/synchronize.py", line 59, in <module> " function, see issue 3770.") ImportError: This platform lacks a functioning sem_open implementation, therefore, the required synchronization primitives needed will not function, see issue 3770. -- Joseph