(defvar x '(a b c))
(defvar y 'z)
(print `(y . ,@x))
CihkZWZ2YXIgeCAnKGEgYiBjKSkKKGRlZnZhciB5ICd6KQogCihwcmludCBgKHkgLiAsQHgpKQ==
; compiling file "/home/mKVRDS/prog.lisp" (written 23 MAY 2020 08:43:02 PM):
; compiling (DEFVAR X ...)
; compiling (DEFVAR Y ...);
; caught ERROR:
; READ error during COMPILE-FILE:
;
; (Y . ,@X) contains a splicing comma after a dot
;
; Line: 5, Column: 17, File-Position: 53
;
; Stream: #<SB-INT:FORM-TRACKING-STREAM for "file /home/mKVRDS/prog.lisp" {1001B885C3}>
;
; compilation unit aborted
; caught 1 fatal ERROR condition
; caught 1 ERROR condition
; compilation aborted after 0:00:00.032
Unhandled SIMPLE-ERROR in thread #<SB-THREAD:THREAD "main thread" RUNNING
{10005D05B3}>:
compilation failed
Backtrace for: #<SB-THREAD:THREAD "main thread" RUNNING {10005D05B3}>
0: (SB-DEBUG::DEBUGGER-DISABLED-HOOK #<SIMPLE-ERROR "compilation failed" {1001B956F3}> #<unused argument> :QUIT T)
1: (SB-DEBUG::RUN-HOOK *INVOKE-DEBUGGER-HOOK* #<SIMPLE-ERROR "compilation failed" {1001B956F3}>)
2: (INVOKE-DEBUGGER #<SIMPLE-ERROR "compilation failed" {1001B956F3}>)
3: (ERROR "compilation failed")
4: (SB-INT:SIMPLE-EVAL-IN-LEXENV (ERROR "compilation failed") #<NULL-LEXENV>)
5: (SB-INT:SIMPLE-EVAL-IN-LEXENV (WHEN (NTH-VALUE 2 (COMPILE-FILE "prog.lisp")) (ERROR "compilation failed")) #<NULL-LEXENV>)
6: (EVAL (WHEN (NTH-VALUE 2 (COMPILE-FILE "prog.lisp")) (ERROR "compilation failed")))
7: (SB-IMPL::PROCESS-EVAL/LOAD-OPTIONS ((:EVAL . "(when(nth-value 2(compile-file \"prog.lisp\"))(error \"compilation failed\"))") (:EVAL . "(quit)")))
8: (SB-IMPL::TOPLEVEL-INIT)
9: ((FLET SB-UNIX::BODY :IN SAVE-LISP-AND-DIE))
10: ((FLET "WITHOUT-INTERRUPTS-BODY-14" :IN SAVE-LISP-AND-DIE))
11: ((LABELS SB-IMPL::RESTART-LISP :IN SAVE-LISP-AND-DIE))
unhandled condition in --disable-debugger mode, quitting