Could we get an ebuild for Richard C. Waters's Series package for Common Lisp? (http://series.sourceforge.net/) The Debian package for it contains an ASDF system definition that might be useful.
I took a quick look at it and could not get it to build with sbcl, so this bug report will be low priority. Patches welcome.
Created attachment 35961 [details, diff] Fixes constants being redefined.
Created attachment 35962 [details, diff] Fixes bug with generator type for SBCL.
Created attachment 35964 [details, diff] Imports COMPILER-LET for SBCL.
I'm not really familiar with patches and such, hopefully my attachments are okay. Basically these three make Series 2.2.7 compile for me on SBCL (dev-lisp/sbcl 0.8.12). Somehow, s-test.lisp isn't working yet, but it appears to be a problem with the test framework, not Series itself. I get an error on test-case 11 for example, but when I just copy and paste the code for that test-case, it does work and produce the right answer.
Dirk, thank you very much for the SBCL patches. They have been incorporated into the dev-lisp/cl-series port just added to portage.