Hi,
instead about complaining how to compile Pd-extended for amd64 for ubuntu 12.04 here it is:
some recipes I used:
additional: sudo apt-get install libjack0 sudo apt-get install libjack-dev
as in maverick: sudo apt-get build-dep puredata gem pdp sudo apt-get install ttf-dejavu libfftw3-dev libspeex-dev libvorbis-dev libflac-dev libsndfile1-dev libgavl-dev libmad0-dev dssi-dev liblo-dev flite1-dev libtk-img tcllib libmp3lame0 libmp3lame-dev libimlib2-dev libtheora-dev libusb-0.1-4 libusb-dev sudo apt-get install libnetpbm10-dev ruby nasm libcv-dev libdc1394-22-dev
additional: sudo apt-get install liblua5.1-0-dev lua5.1 tcl8.5-de swig
http://puredata.info/docs/developer/BuildingPdExtended
cd pure-data/packages/linux_make make install && make package
enjoy kiilo