Build fails: asdf:build-op cannot be executed

[barracuda156]

--->  Building cl-slynk
xinstall: mkdir /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lisp_cl-slynk/cl-slynk/work/build
xinstall: mkdir /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lisp_cl-slynk/cl-slynk/work/build/source
xinstall: mkdir /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lisp_cl-slynk/cl-slynk/work/build/system
Execute asdf:build-op at slynk by SBCL
This is SBCL 2.4.8, an implementation of ANSI Common Lisp.
More information about SBCL is available at <http://www.sbcl.org/>.

SBCL is free software, provided as is, with absolutely no warranty.
It is mostly in the public domain; some portions are provided under
BSD-style licenses.  See the CREDITS and COPYING files in the
distribution for more information.
; compiling file "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lisp_cl-slynk/cl-slynk/work/build/source/cl-slynk/slynk-backend.lisp" (written 14 JAN 2021 05:12:56 PM):

; file: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lisp_cl-slynk/cl-slynk/work/build/source/cl-slynk/slynk-backend.lisp
; in: DEFUN %UTF8-ENCODE
;     (SLYNK-BACKEND::%UTF8-ENCODE (CODE-CHAR 65533) SLYNK-BACKEND::BUFFER
;      SLYNK-BACKEND::START SLYNK-BACKEND::END)
; 
; note: deleting unreachable code
; 
; caught WARNING:
;   Constant
;     #\REPLACEMENT_CHARACTER conflicts with its asserted type
;     (UNSIGNED-BYTE 31).
;   See also:
;     The SBCL Manual, Node "Handling of Types"


; wrote /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lisp_cl-slynk/cl-slynk/work/.home/.cache/common-lisp/sbcl-2.4.8-macosx-ppc32/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lisp_cl-slynk/cl-slynk/work/build/source/cl-slynk/slynk-backend-tmp7LQ0A0VI.fasl
; compilation finished in 0:00:02.393
Unhandled UIOP/LISP-BUILD:COMPILE-FILE-ERROR in thread #<SB-THREAD:THREAD tid=267 "main thread" RUNNING
                                                          {11E61611}>:
  COMPILE-FILE-ERROR while compiling #<CL-SOURCE-FILE "slynk" "slynk-backend">

Backtrace for: #<SB-THREAD:THREAD tid=267 "main thread" RUNNING {11E61611}>
0: (SB-DEBUG::DEBUGGER-DISABLED-HOOK #<UIOP/LISP-BUILD:COMPILE-FILE-ERROR {127857B9}> #<unused argument> :QUIT T)
1: (SB-DEBUG::RUN-HOOK *INVOKE-DEBUGGER-HOOK* #<UIOP/LISP-BUILD:COMPILE-FILE-ERROR {127857B9}>)
2: (INVOKE-DEBUGGER #<UIOP/LISP-BUILD:COMPILE-FILE-ERROR {127857B9}>)
3: (ERROR UIOP/LISP-BUILD:COMPILE-FILE-ERROR :CONTEXT-FORMAT "~/asdf-action::format-action/" :CONTEXT-ARGUMENTS ((#<ASDF/LISP-ACTION:COMPILE-OP > . #<ASDF/LISP-ACTION:CL-SOURCE-FILE "slynk" "slynk-backend">)))
4: (UIOP/LISP-BUILD:CHECK-LISP-COMPILE-RESULTS NIL T T "~/asdf-action::format-action/" ((#<ASDF/LISP-ACTION:COMPILE-OP > . #<ASDF/LISP-ACTION:CL-SOURCE-FILE "slynk" "slynk-backend">)))
5: ((SB-PCL::EMF ASDF/ACTION:PERFORM) #<unused argument> #<unused argument> #<ASDF/LISP-ACTION:COMPILE-OP > #<ASDF/LISP-ACTION:CL-SOURCE-FILE "slynk" "slynk-backend">)
6: ((LAMBDA NIL :IN ASDF/ACTION:CALL-WHILE-VISITING-ACTION))
7: ((:METHOD ASDF/ACTION:PERFORM-WITH-RESTARTS :AROUND (T T)) #<ASDF/LISP-ACTION:COMPILE-OP > #<ASDF/LISP-ACTION:CL-SOURCE-FILE "slynk" "slynk-backend">) [fast-method]
8: ((:METHOD ASDF/PLAN:PERFORM-PLAN (T)) #<ASDF/PLAN:SEQUENTIAL-PLAN {114711A1}>) [fast-method]
9: ((FLET SB-C::WITH-IT :IN SB-C::%WITH-COMPILATION-UNIT))
10: ((:METHOD ASDF/PLAN:PERFORM-PLAN :AROUND (T)) #<ASDF/PLAN:SEQUENTIAL-PLAN {114711A1}>) [fast-method]
11: ((:METHOD ASDF/OPERATE:OPERATE (ASDF/OPERATION:OPERATION ASDF/COMPONENT:COMPONENT)) #<ASDF/OPERATE:BUILD-OP > #<ASDF/SYSTEM:SYSTEM "slynk"> :PLAN-CLASS NIL :PLAN-OPTIONS NIL) [fast-method]
12: ((SB-PCL::EMF ASDF/OPERATE:OPERATE) #<unused argument> #<unused argument> #<ASDF/OPERATE:BUILD-OP > #<ASDF/SYSTEM:SYSTEM "slynk">)
13: ((LAMBDA NIL :IN ASDF/OPERATE:OPERATE))
14: ((:METHOD ASDF/OPERATE:OPERATE :AROUND (T T)) #<ASDF/OPERATE:BUILD-OP > #<ASDF/SYSTEM:SYSTEM "slynk">) [fast-method]
15: ((SB-PCL::EMF ASDF/OPERATE:OPERATE) #<unused argument> #<unused argument> ASDF/OPERATE:BUILD-OP SLYNK)
16: ((LAMBDA NIL :IN ASDF/OPERATE:OPERATE))
17: ((:METHOD ASDF/OPERATE:OPERATE :AROUND (T T)) ASDF/OPERATE:BUILD-OP SLYNK) [fast-method]
18: (ASDF/SESSION:CALL-WITH-ASDF-SESSION #<FUNCTION (LAMBDA NIL :IN ASDF/OPERATE:OPERATE) {114710AD}> :OVERRIDE T :KEY NIL :OVERRIDE-CACHE T :OVERRIDE-FORCING NIL)
19: ((LAMBDA NIL :IN ASDF/OPERATE:OPERATE))
20: (ASDF/SESSION:CALL-WITH-ASDF-SESSION #<FUNCTION (LAMBDA NIL :IN ASDF/OPERATE:OPERATE) {125C308D}> :OVERRIDE NIL :KEY NIL :OVERRIDE-CACHE NIL :OVERRIDE-FORCING NIL)
21: ((:METHOD ASDF/OPERATE:OPERATE :AROUND (T T)) ASDF/OPERATE:BUILD-OP SLYNK) [fast-method]
22: (SB-INT:SIMPLE-EVAL-IN-LEXENV (ASDF/OPERATE:OPERATE (QUOTE ASDF/OPERATE:BUILD-OP) (QUOTE SLYNK)) #<NULL-LEXENV>)
23: (EVAL (ASDF/OPERATE:OPERATE (QUOTE ASDF/OPERATE:BUILD-OP) (QUOTE SLYNK)))
24: (SB-IMPL::PROCESS-EVAL/LOAD-OPTIONS ((:EVAL . "(require \"asdf\")") (:EVAL . #<(SIMPLE-ARRAY CHARACTER (298)) (setf asdf:*central-registry* (list* (quote *default-pathname-defaults*) #p"/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lisp_cl-sly... {1318963F}>) (:EVAL . "(asdf:operate (quote asdf:build-op) (quote slynk))") (:QUIT)))
25: (SB-IMPL::TOPLEVEL-INIT)
26: ((FLET SB-UNIX::BODY :IN SB-IMPL::START-LISP))
27: ((FLET "WITHOUT-INTERRUPTS-BODY-3" :IN SB-IMPL::START-LISP))
28: (SB-IMPL::%START-LISP)

unhandled condition in --disable-debugger mode, quitting
; 
; compilation unit aborted
;   caught 1 fatal ERROR condition
;   caught 1 WARNING condition
;   printed 1 note
Command failed: /opt/local/bin/sbcl --no-sysinit --no-userinit --non-interactive --eval '(require "asdf")' --eval '(setf asdf:*central-registry* (list* (quote *default-pathname-defaults*) #p"/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lisp_cl-slynk/cl-slynk/work/build/system/" #p"/opt/local/share/common-lisp/system/" asdf:*central-registry*))' --eval '(asdf:operate (quote asdf:build-op) (quote slynk))' 2>&1
Exit code: 1
Error: Failed to build cl-slynk: asdf:build-op cannot be executed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lisp_cl-slynk/cl-slynk/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there
is a bug.
Error: Processing of port cl-slynk failed

[aadcg]

Try this patch - slime/slime@f1f9991.