CLISP fails to install (but CLISP-HEAD works)

Attempt to enable tests for CLISP fails with this log:

```
/home/runner/.roswell/src/clisp-2.49/modules/regexp/gllib/regexec.c: In function ‘match_ctx_add_entry’:
/home/runner/.roswell/src/clisp-2.49/modules/regexp/gllib/regexec.c:4318:29: warning: comparison of integer expressions of different signedness: ‘int’ and ‘Idx’ {aka ‘long unsigned int’} [-Wsign-compare]
4318 | if (mctx->max_mb_elem_len < to - from)
| ^
ar: `u' modifier ignored since `D' is the default (see `U')
/home/runner/.roswell/src/clisp-2.49/modules/regexp/regexi.c: In function ‘C_subr_regexp_regexp_exec’:
/home/runner/.roswell/src/clisp-2.49/modules/regexp/regexi.c:137:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
137 | if (re_count < fixnum_to_V(Symbol_value(S(multiple_values_limit)))) {
| ^
/home/runner/.roswell/src/clisp-2.49/modules/regexp/regexi.c:141:7: note: here
141 | case ret_list:
| ^~~~
0 errors, 0 warnings
*** - FFI::FIND-FOREIGN-VARIABLE: foreign variable
# does not have
the required size or alignment

./clisp-link: failed in /home/runner/.roswell/src/clisp-2.49/src
make: *** [Makefile:2284: base] Error 1
0 ......................................................................
700 ......................................................................
1400 ......................................................................
2100 ......................................................................
2800 ...................................
Installing clisp/2.49...
prefix: #P"/home/runner/.roswell/impls/x86-64/linux/clisp/2.49/"
chdir /home/runner/.roswell/src/clisp-2.49/src/
*** - FFI::FIND-FOREIGN-VARIABLE: foreign variable
# does not have
the required size or alignment

./clisp-link: failed in /home/runner/.roswell/src/clisp-2.49/src
make: *** [Makefile:2284: base] Error 1
Unhandled UIOP/RUN-PROGRAM:SUBPROCESS-ERROR in thread #:
Subprocess with command "make install"
exited with error code 2

Backtrace for: #
0: (SB-DEBUG::DEBUGGER-DISABLED-HOOK # # :QUIT T)
1: (SB-DEBUG::RUN-HOOK SB-EXT:*INVOKE-DEBUGGER-HOOK* #)
2: (INVOKE-DEBUGGER #)
3: (CERROR "IGNORE-ERROR-STATUS" UIOP/RUN-PROGRAM:SUBPROCESS-ERROR :COMMAND "make install" :CODE 2 :PROCESS NIL)
4: (UIOP/RUN-PROGRAM::%CHECK-RESULT 2 :COMMAND "make install" :PROCESS NIL :IGNORE-ERROR-STATUS NIL)
5: (UIOP/RUN-PROGRAM::%USE-SYSTEM "make install" :OUTPUT T :ERROR-OUTPUT T)
6: (ROSWELL.INSTALL.CLISP::CLISP-INSTALL (:TARGET "clisp" :VERSION "2.49" :VERSION-NOT-SPECIFIED 0 :ARGV NIL))
7: (INSTALL-IMPL "clisp" NIL NIL (# ROSWELL.INSTALL.CLISP::CLISP-ARGV-PARSE START # ROSWELL.INSTALL.CLISP::CLISP-LIB ROSWELL.INSTALL.CLISP::CLISP-EXPAND ROSWELL.INSTALL.CLISP::CLISP-PATCH ROSWELL.INSTALL.CLISP::CLISP-CONFIG ROSWELL.INSTALL.CLISP::CLISP-MAKE ROSWELL.INSTALL.CLISP::CLISP-INSTALL ROSWELL.INSTALL.CLISP::CLISP-CLEAN SETUP))
8: (INSTALL-IMPL-IF-PROBED "clisp" NIL #)
9: (INSTALL NIL)
10: (SB-INT:SIMPLE-EVAL-IN-LEXENV (APPLY (QUOTE MAIN) ROSWELL:*ARGV*) #)
11: (SB-INT:SIMPLE-EVAL-IN-LEXENV (ROSWELL:QUIT (APPLY (QUOTE MAIN) ROSWELL:*ARGV*)) #)
12: (SB-EXT:EVAL-TLF (ROSWELL:QUIT (APPLY (QUOTE MAIN) ROSWELL:*ARGV*)) NIL NIL)
13: ((LABELS SB-FASL::EVAL-FORM :IN SB-INT:LOAD-AS-SOURCE) (ROSWELL:QUIT (APPLY (QUOTE MAIN) ROSWELL:*ARGV*)) NIL)
14: (SB-INT:LOAD-AS-SOURCE # :VERBOSE NIL :PRINT NIL :CONTEXT "loading")
15: ((LABELS SB-FASL::LOAD-STREAM-1 :IN LOAD) # NIL)
16: (SB-FASL::CALL-WITH-LOAD-BINDINGS # # NIL #)
17: (LOAD # :VERBOSE NIL :PRINT NIL :IF-DOES-NOT-EXIST :ERROR :EXTERNAL-FORMAT :DEFAULT)
18: ((FLET ROSWELL::BODY :IN ROSWELL:SCRIPT) #)
19: (ROSWELL:SCRIPT "/usr/local/etc/roswell/install.ros" "clisp")
20: (ROSWELL:RUN ((:EVAL "(ros:quicklisp)") (:SCRIPT "/usr/local/etc/roswell/install.ros" "clisp") (:QUIT NIL)))
21: (SB-INT:SIMPLE-EVAL-IN-LEXENV (ROSWELL:RUN (QUOTE ((:EVAL "(ros:quicklisp)") (:SCRIPT "/usr/local/etc/roswell/install.ros" "clisp") (:QUIT NIL)))) #)
22: (EVAL (ROSWELL:RUN (QUOTE ((:EVAL "(ros:quicklisp)") (:SCRIPT "/usr/local/etc/roswell/install.ros" "clisp") (:QUIT NIL)))))
23: (SB-IMPL::PROCESS-EVAL/LOAD-OPTIONS ((:EVAL . "(progn #-ros.init(cl:load \"/usr/local/etc/roswell/init.lisp\"))") (:EVAL . "(ros:run '((:eval\"(ros:quicklisp)\")(:script \"/usr/local/etc/roswell/install.ros\"\"clisp\")(:quit ())))")))
24: (SB-IMPL::TOPLEVEL-INIT)
25: ((FLET SB-UNIX::BODY :IN SB-IMPL::START-LISP))
26: ((FLET "WITHOUT-INTERRUPTS-BODY-3" :IN SB-IMPL::START-LISP))
27: (SB-IMPL::%START-LISP)

unhandled condition in --disable-debugger mode, quitting
0 ...............................
Error: Process completed with exit code 1.
```