Hi. I am trying to install the GEM external for Pure Data on my Raspberry Pi. I have always found installing source code troubling as I do not know nearly enough about programming to work with all the options during the install.

I did find out that you can install GEM with the command line so I did that:
sudo apt install gem

I cannot find where it installed to and typing $ gem
gives me nothing but $ sudo apt install gem
gives me:
gem is already the newest version (1:0.94-8+b5).
Summary:
Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 1

I can point Pure Data to a normally installed external when I know where it is. How do I find GEM so I can point Pd to it?

I think you should just be able to put Gem in the list of libraries in Startup in the Preferences.

One issue however is that GEM requires OpenGL, where the Raspberry Pi (and other ARM based devices) only have OpenGLES.

I have had some moderate success using GL4ES to translate this: https://github.com/ptitSeb/gl4es

try installing it on another computer the same way and maybe you can see it there .

It should be in /usr/lib/pd/extra, but as @dreamer wrote, if you [declare -lib Gem] you should be able to use it.

no it never works easily I was learning pd for a year before I ever got it to work. I only ever got gem to work from sudo . the cia people dont even do anything someone else installs it for them

@willblackhurst said:

I only ever got gem to work from sudo

With all due respect, but... whaaa? That's not how Gem runs.

If you install a VST plugin, you don't run it at the command line. It will never work that way. Gem is a Pd plugin. It can't run without a Pd host. Sudo isn't a Pd host.

the cia people dont even do anything someone else installs it for them

I'm at some pains to understand the relevance, but, oh-kay.

hjh

Maybe the problem is with the current Raspberry Pi OS, Trixie.

When I type gem in the deken - Find Extenrals window, search field and click Search, I get the following:

Searching for "gem"...
Searching on http://deken.puredata.info/search...
Searching on http://deken.puredata.info/search returned 21 results
"gem": Found 0 usable packages (of 20 packages in total).
It appears that there are no matching packages for your architecture.

Maybe it just will not work with the Raspberry Pi at this time.