Emacs additions? (CEDET, JDE)

[TimeMint]

Hi,

I'm really puzzled by something in my install of LMDE x64. I can't find any of what used to be standard Emacs extension packages - CEDET, JDE, semantic. These are typically available in apt on Ubuntu or Debian, and looking through community.linuxmint.com -> software, I find them there as well. But there's nothing in the databases searched by my apt installation.

Does anyone know where I can find this stuff? Am I missing some repositories, or are these packages not part of LMDE, ever? I've searched the forums but been unable to find any references to JDE or CEDET.

Any suggestions appreciated - thanks!