We're making progress! On SunOS-5.5, here is the latest failure from 21.5: gcc -O2 -pipe -ffast-math -fno-exceptions -fno-gnu-linker -L/u/shelton/new/SunOS-5.5/lib -L/usr/ccs/lib -Xlinker -R/u/shelton/new/SunOS-5.5/lib:/usr/dt/lib:/usr/openwin/lib -L/usr/dt/lib -L/usr/openwin/lib -o temacs abbrev.o alloc.o balloon_help.o balloon-x.o blocktype.o buffer.o bytecode.o callint.o callproc.o casefiddle.o casetab.o chartab.o filelock.o cmdloop.o cmds.o console.o console-stream.o data.o database.o device.o dired.o doc.o doprnt.o dynarr.o editfns.o elhash.o emacs.o eval.o events.o event-stream.o event-unixoid.o unexsol2.o getloadavg.o inline.o terminfo.o extents.o faces.o file-coding.o fileio.o filemode.o floatfns.o fns.o font-lock.o frame.o general.o dgif_lib.o gif_io.o glyphs.o glyphs-eimage.o glyphs-shared.o glyphs-widget.o gui.o menubar.o scrollbar.o toolbar.o gutter.o hash.o imgproc.o indent.o insdel.o intl.o keymap.o line-number.o lread.o lstream.o macros.o marker.o md5.o minibuf.o objects.o opaque.o print.o process.o process-unix.o profile.o rangetab.o realpath.o redisplay.o redisplay-output.o regex.o search.o select.o sysdll.o emodules.o signal.o sound.o specifier.o strftime.o symbols.o syntax.o sysdep.o text.o tooltalk.o console-tty.o device-tty.o event-tty.o frame-tty.o objects-tty.o redisplay-tty.o cm.o undo.o unicode.o console-x.o device-x.o event-Xt.o frame-x.o glyphs-x.o objects-x.o redisplay-x.o select-x.o xgccache.o intl-x.o gui-x.o menubar-x.o scrollbar-x.o toolbar-x.o toolbar-common.o widget.o window.o lastfile.o gmalloc.o vm-limit.o ralloc.o EmacsFrame.o EmacsShell.o TopLevelEmacsShell.o TransientEmacsShell.o EmacsManager.o ../lwlib/liblw.a -lpng -lz -lXpm -ltt -lXmu -lXt -lXext -lX11 -lcurses -lkvm -lkstat -lm -lsocket -lnsl -lelf -lgen -ldl Undefined first referenced symbol in file wcslen buffer.o (symbol belongs to implicit dependency /usr/lib/libw.so.1) ld: fatal: Symbol referencing errors. No output written to temacs collect2: ld returned 1 exit status make[1]: *** [temacs] Error 1 make[1]: Leaving directory `/u/shelton/new/build/SunOS-5.5/xemacs-21.5-2002-04-18/src' make: *** [dump-elcs] Error 2 And here is the contents of the Installation file uname -a: SunOS ise4 5.5.1 Generic_103640-34 sun4m sparc /u/shelton/new/src/xemacs-21.5-2002-04-18/configure '--prefix=/u/shelton/new/SunOS-5.5/xemacs-21.5-2002-04-18' '--with-gcc' '--site-includes=/u/shelton/new/SunOS-5.5/include' '--site-libraries=/u/shelton/new/SunOS-5.5/lib' '--infopath=/u/shelton/new/info' '--with-mule=no' '--compiler=gcc' '--cflags=-O2 -pipe -ffast-math -fno-exceptions' '--with-dialogs=no' '--with-widgets=no' '--package-path=/u/shelton/new/site-packages::/u/shelton/new/xemacs-packages' '--debug=no' '--error-checking=none' XEmacs 21.5-b6 "bok choi" configured for `sparc-sun-solaris2.5.1'. Compilation / Installation: Source code location: /u/shelton/new/src/xemacs-21.5-2002-04-18 Installation prefix: /u/shelton/new/SunOS-5.5/xemacs-21.5-2002-04-18 Additional header files: /u/shelton/new/SunOS-5.5/include Additional libraries: /u/shelton/new/SunOS-5.5/lib Runtime library search path: /u/shelton/new/SunOS-5.5/lib:/usr/dt/lib:/usr/openwin/lib Operating system description file: `s/sol2.h' Machine description file: `m/sparc.h' Compiler: gcc -O2 -pipe -ffast-math -fno-exceptions Relocating allocator for buffers: yes GNU version of malloc: yes Window System: Compiling in support for the X window system: - X Windows headers location: /usr/dt/include /usr/openwin/include - X Windows libraries location: /usr/dt/lib /usr/openwin/lib - Handling WM_COMMAND properly. Using Lucid menubars. Using Lucid scrollbars. TTY: Images: Compiling in support for GIF images (builtin). Compiling in support for XPM images. Compiling in support for PNG images. Sound: Databases: Compiling in support for DBM. Internationalization: Mail: Compiling in support for "dot-locking" mail spool file locking method. Other Features: Inhibiting IPv6 canonicalization at startup. Compiling in support for ToolTalk. Compiling in support for dynamic shared object modules. WARNING: --------------------------------------------------------- WARNING: Compiling in support for runtime error checking. WARNING: XEmacs will run noticeably more slowly as a result. WARNING: Error checking is on by default for XEmacs beta releases. WARNING: --------------------------------------------------------- On SunOS-4.1, here is the error which results: gcc -O2 -pipe -ffast-math -fno-exceptions -I. -I../src -I/u/shelton/new/src/xemacs-21.5-2002-04-18/lib-src -I/u/shelton/new/src/xemacs-21.5-2002-04-18/src -DHAVE_CONFIG_H -I/u/shelton/new/SunOS-4.1/include /u/shelton/new/src/xemacs-21.5-2002-04-18/lib-src/movemail.c /u/shelton/new/src/xemacs-21.5-2002-04-18/lib-src/pop.c getopt.o getopt1.o regex.o -L/u/shelton/new/SunOS-4.1/lib -Xlinker -Bstatic -ltermcap -lkvm -lm -o movemail /u/shelton/new/src/xemacs-21.5-2002-04-18/lib-src/movemail.c:86: conflicting types for `strerror' /u/shelton/new/src/xemacs-21.5-2002-04-18/lib-src/../src/sysfile.h:387: previous declaration of `strerror' make[1]: *** [movemail] Error 1 make[1]: Leaving directory `/tmp_mnt/u/shelton/new/build/SunOS-4.1/xemacs-21.5-2002-04-18/lib-src' make: *** [lib-src] Error 2 Here is the contents of config.log: HTH, vin