Solaris 2.5.1 + EGCS 1.1.1 + MULE: b63 failed

The first time the executable is run ("testing for lisp shadows"), it crashes with the following stack trace. FWIW, building without MULE works. I've updated my "lisp" tree to get the new "mule" subdirectory, and have removed my old "mule-base" package. -lipp #0 0xef0748e8 in kill () #1 0x7a900 in fatal_error_signal (sig=11) at emacs.c:262 #2 <signal handler called> #3 0x4a734 in mark_object (obj=540550144) at alloc.c:3170 #4 0x5f53c in mark_char_table (obj=2, markobj=0x4a64c <mark_object>) at chartab.c:145 #5 0x4a77c in mark_object (obj=540801024) at alloc.c:3180 #6 0x4a8ac in mark_object (obj=4000924) at alloc.c:3234 #7 0x4a854 in mark_object (obj=2977792) at alloc.c:3216 #8 0x4c26c in garbage_collect_1 () at alloc.c:4493 #9 0x7e6c8 in Feval (form=1078462908) at eval.c:2919 #10 0x107e54 in readevalloop (readcharfun=541587968, sourcename=1615332676, evalfun=0x7e460 <Feval>, printflag=0) at lread.c:1341 #11 0x107000 in Fload_internal (file=1615332676, no_error=268435455, nomessage=268434432, nosuffix=2772992, codesys=-1607541148, used_codesys=-1607639036) at lread.c:747 #12 0x7f3c4 in funcall_recording_as (recorded_as=1, nargs=5, args=0xefffd4a8) at eval.c:3193 #13 0x83710 in Ffuncall (nargs=6, args=0xefffd4a8) at eval.c:3238 #14 0x56344 in Fbyte_code (bytestr=1613132116, vector=-2144964060, maxdepth=351232) at bytecode.c:416 #15 0x806b8 in funcall_lambda (fun=539390740, nargs=3, arg_vector=0xefffd75c) at eval.c:3597 #16 0x7f708 in funcall_recording_as (recorded_as=1, nargs=3, args=0xefffd758) at eval.c:3214 #17 0x83710 in Ffuncall (nargs=4, args=0xefffd758) at eval.c:3238 #18 0x56344 in Fbyte_code (bytestr=1612609064, vector=-2145487288, maxdepth=351232) at bytecode.c:416 #19 0x7ec50 in Feval (form=1075738136) at eval.c:3063 #20 0x7c278 in condition_case_1 (handlers=1075738208, bfun=0x7e460 <Feval>, barg=1075738136, hfun=0x7c2c4 <run_condition_case_handlers>, harg=-1607638940) at eval.c:1653 #21 0x8352c in condition_case_3 (bodyform=1075738136, var=-1607638940, handlers=1075738208) at eval.c:1715 #22 0x56870 in Fbyte_code (bytestr=1612608984, vector=-2145487368, maxdepth=351232) at bytecode.c:576 #23 0x806b8 in funcall_lambda (fun=538867556, nargs=1, arg_vector=0xefffdd3c) at eval.c:3597 #24 0x7f708 in funcall_recording_as (recorded_as=1, nargs=1, args=0xefffdd38) at eval.c:3214 #25 0x82e1c in call1 (fn=1, arg0=1614203412) at eval.c:3238 #26 0xdebc8 in mapcar1 (leni=48, vals=0x0, fn=538867556, seq=1078003580) at fns.c:3237 #27 0xe1318 in Fmapc (fn=538867556, seq=1078003580) at fns.c:3320 #28 0x7f4b4 in funcall_recording_as (recorded_as=1, nargs=2, args=0xefffe030) at eval.c:3197 #29 0x83710 in Ffuncall (nargs=3, args=0xefffe030) at eval.c:3238 #30 0x56344 in Fbyte_code (bytestr=1612609424, vector=-2145486936, maxdepth=351232) at bytecode.c:416 #31 0x806b8 in funcall_lambda (fun=538867640, nargs=2, arg_vector=0xefffe2dc) at eval.c:3597 #32 0x7f708 in funcall_recording_as (recorded_as=1, nargs=2, args=0xefffe2d8) at eval.c:3214 #33 0x83710 in Ffuncall (nargs=3, args=0xefffe2d8) at eval.c:3238 #34 0x56344 in Fbyte_code (bytestr=1612609552, vector=-2145486808, maxdepth=351232) at bytecode.c:416 #35 0x806b8 in funcall_lambda (fun=538867772, nargs=1, arg_vector=0xefffe804) at eval.c:3597 #36 0x7f708 in funcall_recording_as (recorded_as=1, nargs=1, args=0xefffe800) at eval.c:3214 #37 0x83710 in Ffuncall (nargs=2, args=0xefffe800) at eval.c:3238 #38 0x56344 in Fbyte_code (bytestr=1612904540, vector=-2145191588, maxdepth=351232) at bytecode.c:416 #39 0x806b8 in funcall_lambda (fun=539163452, nargs=0, arg_vector=0xefffe950) at eval.c:3597 #40 0x800a0 in apply_lambda (fun=539163452, numargs=0, unevalled_args=-1607639036) at eval.c:3501 #41 0x7edb4 in Feval (form=1077330156) at eval.c:3085 #42 0x7c278 in condition_case_1 (handlers=-1607638940, bfun=0x7e460 <Feval>, barg=1077330156, hfun=0x6091c <cmd_error>, harg=-1607639036) at eval.c:1653 #43 0x609ac in top_level_1 (dummy=2771968) at cmdloop.c:206 #44 0x83430 in internal_catch (tag=-1607561116, func=0x60970 <top_level_1>, arg=-1607639036, threw=0x0) at eval.c:1328 #45 0x5ff8c in initial_command_loop (load_me=395632) at cmdloop.c:285 #46 0x79200 in sort_args (argc=2760704, argv=0xefffef5c) at emacs.c:1705 #47 0x7aae8 in main (argc=2, argv=0xefffef5c, envp=0xefffef68) at emacs.c:2122 --- I'm reporting for duty as a modern person. I want to do the Latin Hustle now!