Assuming you meant to uncomment the (defun cl-float-limits () code, I did so and it's doing pretty well. It now builds OK and loads up just fine. It re-sizes purespace and loads again. Almost home, but then... Dumping under the name xemacs Purespace usage: 1045352 of 1045352 (100%). Impurities: conses used: 14402 conses free: 2260 cons storage: 272384 symbols used: 7579 symbols free: 4 symbol storage: 367792 vectors used: 597 vectors total length: 32955 vector storage: 277968 short strings used: 1373 long strings used: 1 strings free: 3372 short strings total length: 63731 short string storage: 90112 long strings total length: 57290 string header storage: 115824 floats used: 2 floats free: 21 float storage: 2048 markers used: 34 marker storage: 2016 extents used: 14 extent storage: 2032 symbol value lisp magics used: 24 symbol value lisp magic storage: 3264 symbol value varaliases used: 46 symbol value varalias storage: 2208 opaque lists used: 2 opaque list storage: 96 opaques used: 4 opaque storage: 196 color instances used: 1 color instance storage: 48 font instances used: 1 font instance storage: 64 range tables used: 1 range table storage: 32 faces used: 25 face storage: 3800 glyphs used: 18 glyph storage: 1440 specifiers used: 374 specifier storage: 46146 weak lists used: 374 weak list storage: 17952 char tables used: 12 char table storage: 25152 buffers used: 6 buffer storage: 3072 extent infos used: 4 extent info storage: 160 consoles used: 3 console storage: 576 command builders used: 1 command builder storage: 104 keymaps used: 123 keymap storage: 10824 devices used: 1 device storage: 280 frames used: 1 frame storage: 456 image instances used: 1 image instance storage: 128 windows used: 2 window storage: 1472 lcrecord lists used: 12 lcrecord list storage: 576 hashtables used: 265 hashtable storage: 21200 streams used: 2 streams on free list: 2 stream storage: 358 /bin/sh: 738 Memory fault - core dumped make[2]: [xemacs] Error 139 (ignored) Testing for Lisp shadows ... /bin/sh: ./xemacs: cannot execute make[2]: Leaving directory `/home/oberman/utils/xemacs-21.0-b40/src' make[1]: Leaving directory `/home/oberman/utils/xemacs-21.0-b40/src' Building finder database ... /bin/sh: /usr/users/oberman/utils/xemacs-21.0-b40/src/xemacs: cannot execute make: *** [lisp/finder-inf.el] Error 1 And, indeed, xemacs does not have execute privs, although I assume the 738 Memory fault is the real source of the problem. I then re-built the whole thing with gcc-2.7.2.3 and got about the same error (/bin/sh: 9663 Memory fault - core dumped). So it does not appear to be compiler related. I will re-build with debugging as soon as I get a few minutes so that I can (possibly) tell something from the core file. R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman(a)es.net Phone: +1 510 486-8634