check dependencies

[hiro]

before submitting an extension I need to check dependencies.
This ugly one-line allows me to be a bit lazy:

(for bla in $(ldd `which mplayer`|awk '/=>/ {print $3}'|grep 'usr/local'); do ls -l $bla; done)| awk '/-> \/tmp\/tcloop/  {print $11}'|sed 's,.*tmp/tcloop/,,; s,/.*,,'|sort|uniq