This was pretty simple but complicated :). It turns out I updated alien bob’s repo to ffmpeg 0.11, thus upgrading to libavcodec.so.54. I’m sure I could have gotten away with a simple symlink but I wanted a clean install.
So I though I would simply rebuild digikam, right? Wrong. It failed, with weird errors like:
make: \*** [extra/libkface/test/detect] Error 1
collect2: error: ld returned 1 exit status make: *** [extra/kipi-plugins/removeredeyes/test/testipp] Error 1
Face detect above sounded a lot like digikam built successfully.