Here's a doc which tells you all of the debian packages that you need to install in order to compile everything in Pd-extended:

http://puredata.org/docs/developer/Debian

There are lots and lots of packages, it should cover all objects in "externals" as well as Gem, GridFlow, PDP, and PiDiP. Its a wiki page, so please add any dependencies that are missing.

.hc

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