FreeBSD 3.0-CURRENT (soon to be -RELEASE) has switched from a.out to ELF and XEmacs won't build or run properly. If s/freebsd.h is synched up with Emacs 20.3, to use unexelf.c for instance, it will build properly, but dumps core when it attempts to run. Moreover, Emacs-20.3 builds and runs perfectly fine in the new ELF world of FreeBSD. This is with 21.2, though I imagine all versions would have this same problem. Here's a backtrace: (gdb) bt #0 0x8051ccd in allocate_string_chars_struct (string_it_goes_with=0x8398634, fullsize=56) at /jaz/xemacs/xemacs-21.2/src/alloc.c:2123 #1 0x8051e96 in make_uninit_string (length=50) at /jaz/xemacs/xemacs-21.2/src/alloc.c:2156 #2 0x8052412 in make_string ( contents=0xefbfd394 "/jaz/xemacs/xemacs-21.2/objdir/lisp/auto-autoloads", length=50) at /jaz/xemacs/xemacs-21.2/src/alloc.c:2391 #3 0x80d2803 in Fexpand_file_name (name={gu = {type = Lisp_Type_Record, val = 34496901}, s = {bits = 0, val = 68993802}, u = {bits = 0, val = 68993802}, ui = 137987604, i = 137987604, v = 0x8398614, cv = 0x8398614}, default_directory={gu = {type = Lisp_Type_Record, val = 34520969}, s = {bits = 0, val = 69041938}, u = {bits = 0, val = 69041938}, ui = 138083876, i = 138083876, v = 0x83afe24, cv = 0x83afe24}) at /jaz/xemacs/xemacs-21.2/src/fileio.c:1267 #4 0x808b130 in funcall_recording_as (recorded_as={gu = { type = Lisp_Type_Record, val = 34370561}, s = {bits = 0, val = 68741122}, u = {bits = 0, val = 68741122}, ui = 137482244, i = 137482244, v = 0x831d004, cv = 0x831d004}, nargs=2, args=0xefbfd734) at /jaz/xemacs/xemacs-21.2/src/eval.c:3197 #5 0x808b365 in Ffuncall (nargs=3, args=0xefbfd734) at /jaz/xemacs/xemacs-21.2/src/eval.c:3238 #6 0x80612e6 in Fbyte_code (bytestr={gu = {type = Lisp_Type_Record, val = 34190489}, s = {bits = 0, val = 68380978}, u = {bits = 0, val = 68380978}, ui = 136761956, i = 136761956, v = 0x826d264, cv = 0x826d264}, vector={gu = {type = Lisp_Type_Record, val = 34190535}, s = {bits = 0, val = 68381070}, u = {bits = 0, val = 68381070}, ui = 136762140, i = 136762140, v = 0x826d31c, cv = 0x826d31c}, maxdepth={ gu = {type = Lisp_Type_Int_Even, val = 3}, s = {bits = 1, val = 6}, u = { bits = 1, val = 6}, ui = 13, i = 13, v = 0xd, cv = 0xd}) at /jaz/xemacs/xemacs-21.2/src/bytecode.c:416 #7 0x808c3c4 in funcall_lambda (fun={gu = {type = Lisp_Type_Record, val = 34190664}, s = {bits = 0, val = 68381328}, u = {bits = 0, val = 68381328}, ui = 136762656, i = 136762656, v = 0x826d520, cv = 0x826d520}, nargs=0, arg_vector=0xefbfd7e0) at /jaz/xemacs/xemacs-21.2/src/eval.c:3599 #8 0x808bc8b in apply_lambda (fun={gu = {type = Lisp_Type_Record, val = 34190664}, s = {bits = 0, val = 68381328}, u = {bits = 0, val = 68381328}, ui = 136762656, i = 136762656, v = 0x826d520, cv = 0x826d520}, numargs=0, unevalled_args={gu = { type = Lisp_Type_Record, val = 34347009}, s = {bits = 0, val = 68694018}, u = {bits = 0, val = 68694018}, ui = 137388036, i = 137388036, v = 0x8306004, cv = 0x8306004}) at /jaz/xemacs/xemacs-21.2/src/eval.c:3501 #9 0x808ac14 in Feval (form={gu = {type = Lisp_Type_Record, val = 34413513}, s = {bits = 0, val = 68827026}, u = {bits = 0, val = 68827026}, ui = 137654052, i = 137654052, v = 0x8346f24, cv = 0x8346f24}) at /jaz/xemacs/xemacs-21.2/src/eval.c:3085 #10 0x8087f60 in condition_case_1 (handlers={gu = {type = Lisp_Type_Record, val = 34347037}, s = {bits = 0, val = 68694074}, u = {bits = 0, val = 68694074}, ui = 137388148, i = 137388148, v = 0x8306074, cv = 0x8306074}, bfun=0x8089e14 <Feval>, barg={gu = { type = Lisp_Type_Record, val = 34413513}, s = {bits = 0, val = 68827026}, u = {bits = 0, val = 68827026}, ui = 137654052, i = 137654052, v = 0x8346f24, cv = 0x8346f24}, hfun=0x8069140 <cmd_error>, harg={gu = {type = Lisp_Type_Record, val = 34347009}, s = {bits = 0, val = 68694018}, u = {bits = 0, val = 68694018}, ui = 137388036, i = 137388036, v = 0x8306004, cv = 0x8306004}) at /jaz/xemacs/xemacs-21.2/src/eval.c:1653 #11 0x806a158 in top_level_1 (dummy={gu = {type = Lisp_Type_Record, val = 34347009}, s = {bits = 0, val = 68694018}, u = {bits = 0, val = 68694018}, ui = 137388036, i = 137388036, v = 0x8306004, cv = 0x8306004}) at /jaz/xemacs/xemacs-21.2/src/cmdloop.c:206 #12 0x8087b74 in internal_catch (tag={gu = {type = Lisp_Type_Record, val = 34366591}, s = {bits = 0, val = 68733182}, u = {bits = 0, ---Type <return> to continue, or q <return> to quit--- val = 68733182}, ui = 137466364, i = 137466364, v = 0x83191fc, cv = 0x83191fc}, func=0x806a12c <top_level_1>, arg={gu = { type = Lisp_Type_Record, val = 34347009}, s = {bits = 0, val = 68694018}, u = {bits = 0, val = 68694018}, ui = 137388036, i = 137388036, v = 0x8306004, cv = 0x8306004}, threw=0x0) at /jaz/xemacs/xemacs-21.2/src/eval.c:1328 #13 0x8069290 in initial_command_loop (load_me={gu = {type = Lisp_Type_Record, val = 34347009}, s = {bits = 0, val = 68694018}, u = {bits = 0, val = 68694018}, ui = 137388036, i = 137388036, v = 0x8306004, cv = 0x8306004}) at /jaz/xemacs/xemacs-21.2/src/cmdloop.c:285 #14 0x8083a65 in xemacs_21_2_b1_i386_unknown_freebsd3_0 (argc=1, argv=0xefbfdac4, envp=0xefbfdacc, restart=0) at /jaz/xemacs/xemacs-21.2/src/emacs.c:1702 #15 0x808412b in main (argc=1, argv=0xefbfdac4, envp=0xefbfdacc) at /jaz/xemacs/xemacs-21.2/src/emacs.c:2119 #16 0x804e51e in _start () -- Josh Howard (jrh(a)zeppelin.net) -- http://www.zeppelin.net/