Some systems failed to build for Quicklisp dist

[quicklisp]

Building with SBCL 2.5.5 / ASDF 3.3.5 for quicklisp dist creation.

Trying to build commit id be2bf53

parse-rgb fails to build because of a failure in tcod.

tcod fails to build with the following error:

; caught WARNING:
;   Derived type of SB-ALIEN::ALLOC-TMP is (VALUES NULL &OPTIONAL), conflicting with its asserted type SINGLE-FLOAT.
;   See also:
;     The SBCL Manual, Node "Handling of Types"
...
Unhandled UIOP/LISP-BUILD:COMPILE-FILE-ERROR in thread #<SB-THREAD:THREAD tid=1855068 "main thread" RUNNING {1200F10003}>: COMPILE-FILE-ERROR while compiling #<CL-SOURCE-FILE "tcod" "tcod">

Full log here

[podiki]

Hmm. It has been several years since I've looked at this (and at the time was just enough to get it working, I didn't originally write any of the code) but I gave a quick try to see if I could see what was wrong.

I'm guessing something changed in the type checking (SBCL?). But even removing the a* callback stuff, loading this library gives me a division by zero error. This is with SBCL 2.5.2 and libtcod 1.24.0.

The last time I looked at this libtcod was stable/not much activity, which has since changed. So probably this library needs updates to match with the current libtcod. Still, might be quick to get it working with the last 1.x version, if someone can help out here...

EDIT: I take that back, can load cl-tcod with libtcod 1.24.0 and SBCL 2.5.2 after commenting out just that callback function example. I must have had a bad libtcod version/build when I was trying before. Still, that doesn't fix the underlying issue.

[podiki]

Ah, I guess all these defcallbacks should have return value :boolean. That seems to fix it.

[podiki]

Should be fixed with 637272c; I don't have quicklisp setup right now to test via that workflow, so please confirm. Thanks!