How do I get quicklisp to load rfc2388 in slime?

Question

I'm trying to load hunchentoot via quicklisp in slime, and getting the following error:

READ error during COMPILE-FILE:

  :ASCII stream decoding error on
  #<SB-SYS:FD-STREAM
    for "file [redacted]/dists/quicklisp/software/rfc2388-20120107-http/rfc2388.asd"
    {100607B723}>:

    the octet sequence #(196) cannot be decoded.

  (in form starting at line: 29, column: 29,
  file-position: 1615)
[Condition of type ASDF:LOAD-SYSTEM-DEFINITION-ERROR]

I get this when trying to run either:

(ql:quickload "hunchentoot")

Or simply:

(ql:quickload "rfc2388")

It seems that others are getting this too. I found one hint at a possible answer, saying:

The system file is encoded as UTF-8. 
I'm not sure how to configure things so that SBCL on Windows starts with 
UTF-8 as its default encoding for loading sources, but that's what you 
need to do. 

From there, I've tried (based on e.g. [this] adding the following to my emacs config:

(set-language-environment "UTF-8")
(setq slime-lisp-implementations
      '((sbcl ("/opt/local/bin/sbcl") :coding-system utf-8-unix)))
(setq slime-net-coding-system 'utf-8-unix)

But... I still get the same error, even after completely re-starting emacs, to make sure I had a fresh Slime that was reading the above config.

So, what am I missing, and/or otherwise how can I get this to load?

Thanks in advance! (More thanks to come for a successful answer. ;)

Answer 1

Have you checked your locale settings? Emacs configuration only tells it what coding systems to set for communication between SLIME and SWANK.

You can check for locale settings with /usr/bin/locale, for example:

navi ~ » locale
LANG=pl_PL.UTF-8
LC_CTYPE=pl_PL.UTF-8
LC_NUMERIC=pl_PL.UTF-8
LC_TIME=pl_PL.UTF-8
LC_COLLATE="pl_PL.UTF-8"
LC_MONETARY=pl_PL.UTF-8
LC_MESSAGES=C
LC_PAPER=pl_PL.UTF-8
LC_NAME="pl_PL.UTF-8"
LC_ADDRESS="pl_PL.UTF-8"
LC_TELEPHONE="pl_PL.UTF-8"
LC_MEASUREMENT=pl_PL.UTF-8
LC_IDENTIFICATION=pl_PL.UTF-8
LC_ALL=
navi ~ »

Mine is setup for UTF-8 everywhere, as you can see, except for displaying 'C' messages.