On MacOS: When I try to load log4cl I get a compile error:
CL-USER> (ql:quickload "log4cl")
To load "log4cl":
Load 1 ASDF system:
log4cl
; Loading "log4cl"
.
;
; caught ERROR:
; READ error during COMPILE-FILE:
;
; Lock on package SB-C violated when interning LAMBDA-PARENT while in package
; LOG4CL-IMPL.
; See also:
; The SBCL Manual, Node "Package Locks"
;
; (in form starting at line: 99, column: 0, position: 3779)
COMPILE-FILE-ERROR while
compiling #<CL-SOURCE-FILE "log4cl" "src" "naming-sbcl">
[Condition of type UIOP/LISP-BUILD:COMPILE-FILE-ERROR]
On Ubuntu: I do not see that error and log4cl loads without problem. What could be the cause of this?
Like said by coredump :
"Log4cl is trying to access an implementation symbol named sb-c::lambda-parent but this symbol probably does not exist on your version of sbcl on MacOS, and as such Lisp is trying to add this symbol to the SB-C package; but since the package is locked, this is forbidden."
And now I add my little two cents :
LAMBDA-PARENT has been removed from SBCL 3 years ago, with the following message :
"Remove LAMBDA-PARENT.
LAMBDA-LEXENV already has it."
Now the question is : what is the version of your log4cl library, and where does it come from ?
Mine is coming from Quicklisp and it works fine with version 2.3.2 of SBCL, it is http://beta.quicklisp.org/archive/log4cl/2021-12-09/log4cl-20211209-git.tgz
Maybe you should update Quicklisp :
To get updated software, use:
(ql:update-dist "quicklisp")
Software updates are usually available about once per month.
To update the Quicklisp client, use:
(ql:update-client)