Woo hoo! It's installed. The ultimate error was a missing turbojpeg.h file. Thank goodness for the apt-file command. I was able to track that down to the libturbojpeg0-dev package, install that, and after a bit more fussing around now have jpegdupes installed.
Thanks for the help, Skip -- https://mail.python.org/mailman/listinfo/python-list
