Cleanup and standardize omnibus-software definitions

OMGWTFBBQ.

I see, so the idea is that you omit the standard embedded include libraries, because there's some depedency there which you are trying to avoid....  but you're not going to avoid it via a configure flag, and you're going to leave zero documentation about what the problem is, and the construct this alternate-reality universe to compile it under...

Please get rid of this hack, and figure out what is really going on here.

If you *really* need to use this, then my previous comment about using the standard CFLAGS is incorrect and you do really need to drop the `-I#{install_dir}/embedded/include`.

IMO, there's a better way to do this, and this hack needs to go.