-i just want to say thank you so much andre, your post really helped... -a couple notes i'd like to add, addressing problems i had: -if you're using synaptic, you can use that fine to get the list of libs below, also make sure you have openGL installed. -if you're using synaptic, do NOT install Gem through synaptic, this is asking for trouble (chances are this is how you got the vorbis_info_clear message to begin with). if you have tried this, go into synaptic and remove Gem. use "mark for Complete Removal", not just removal, or else you'll still get the vorbis error after compiling. -use the cvs step below! this will give you the /Gem and /Gemlibs folders you need. if you try to use the iem packages, when you go into /gem-0.9.0/src you will not be able to autoconf! use the CVS version, and go into /Gem/src and you should be fine. -depending on your installation, you may have to "apt-get install cvs", "apt-get install autoconf" and "apt-get install make". when i initially tried to cvs/autoconf/make i didn't have those commands; if you get this problem too try those and see if it works then. -one final step andre left out, at least in my case: after compiling, copy Gem.pd_linux from /Gem/src to /usr/lib/pd/extra , otherwise when you run pd -lib Gem , it won't be able to load the Gem objects.

ultimately for me the two biggest problems were not fully removing Gem after trying the synaptic (apt-get) install, and then later not realizing i needed to copy Gem.pd_linux over. i'm a linux newb so forgive my amateurish explanations, but hopefully this helps some. this was also installed on pd with NO externals, so if you get the list of libs below in synaptic it will get all the dependencies for you (i.e. i didn't do pdp and pidip first like andre did and i was fine)

On Mon Nov 21 13:37:04 CET 2005 andre schmidt wrote:

i compiled gem without problems from cvs in ubuntu/breezy (note, i compiled pd, pdp and pidip first, so dunno if they had some depencies that are not listed here)

depencies: libgl-dev ftgl-dev libtiff4-dev libjpeg62-dev libmpeg3-dev libavifile-0.7-dev libquicktime-dev libdv4-dev

1. cvs -z3 -d:pserver:anonymous at cvs.gem.iem.at:/cvsroot/pd-gem checkout

Gem GemLibs 2. cd Gem/src 3. autoconf 4. ./configure 5. make

then if you want, "sudo make install" or "sudo checkinstall" (if you checkinstall, then you can also remove it with dpkg)