I wish Midnight Commander had some command for this, but you can easily adapt your own. Put this into your ~/.mc/menu file:

r       Recursively compare directories         cd %d         find . -type f -print0 | xargs --null ls -l | cut -c33-1000 | sort -t. +1 > /tmp/00mc_current         cd %D         find . -type f -print0 | xargs --null ls -l | cut -c33-1000 | sort -t. +1 > /tmp/00mc_other         kdiff /tmp/00mc_current /tmp/00mc_other         rm -f /tmp/00mc_current /tmp/00mc_other

Now, when you press F2 and 'r' the file listings of the directories in the two panels will appear inside kdiff. The script depends heavily on ls output format.

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