The assistant from the standalone 64bit build crashes upon startup.

### Version information

     [0 zerodogg@firefly annexed]$ git annex version
     git-annex version: 5.20131230-g4aa88d8
     build flags: Assistant Webapp Pairing S3 WebDAV Inotify DBus XMPP Feeds Quvi TDFA
     key/value backends: SHA256E SHA1E SHA512E SHA224E SHA384E SHA256 SHA1 SHA512 SHA224 SHA384 WORM URL
     remote types: git gcrypt S3 bup directory rsync web webdav glacier hook external
     local repository version: 5
     supported repository version: 5
     upgrade supported from repository versions: 0 1 2 4
     [0 zerodogg@firefly annexed]$ uname -a
     Linux firefly 3.12.5-302.fc20.x86_64 #1 SMP Tue Dec 17 20:42:32 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
     [0 zerodogg@firefly annexed]$ cat /etc/fedora-release 
     Fedora release 20 (Heisenbug)
     [0 zerodogg@firefly annexed]$ 

### Error

     [0 zerodogg@firefly annexed]$ git annex webapp
     Launching web browser on file:///home/zerodogg/Documents/annexed/.git/annex/webapp.html
     
     (process:6045): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
     libgcc_s.so.1 must be installed for pthread_cancel to work
     error: git-annex died of signal 6
     [134 zerodogg@firefly annexed]$ ls -l /usr/lib64/libgcc_s.so.1
     lrwxrwxrwx. 1 root root 28 2013-12-18 10:54 /usr/lib64/libgcc_s.so.1 -> libgcc_s-4.8.2-20131212.so.1
     [0 zerodogg@firefly annexed]$ 

> [[fixed|done]] --[[Joey]]
