It looks safe now. Here's the patch from pre5 to pre6 since it's small. 1998-05-06 SL Baur <steve(a)altair.xemacs.org&gt; * frame.c (adjust_frame_size): Don't mix integers and Lisp_Objects. Index: version.sh =================================================================== RCS file: /usr/local/xemacs/xemacs-20.0/version.sh,v retrieving revision 1.89 diff -u -r1.89 version.sh --- version.sh 1998/05/06 22:52:00 1.89 +++ version.sh 1998/05/06 23:56:08 ＠＠ -2,7 +2,7 ＠＠ emacs_major_version=21 emacs_minor_version=0 emacs_beta_version=39 -xemacs_codename="Russian White-pre5" +xemacs_codename="Russian White-pre6" infodock_major_version=3 infodock_minor_version=90 infodock_build_version=5 Index: src/frame.c =================================================================== RCS file: /usr/local/xemacs/xemacs-20.0/src/frame.c,v retrieving revision 1.30 diff -u -r1.30 frame.c --- src/frame.c 1998/05/06 22:52:24 1.30 +++ src/frame.c 1998/05/06 23:39:58 ＠＠ -645,8 +645,8 ＠＠ Vadjust_frame_function, frame)); if (keep_char_size) - Fset_frame_size (frame, FRAME_CHARWIDTH(f), - FRAME_CHARHEIGHT(f), Qnil); + Fset_frame_size (frame, make_int(FRAME_CHARWIDTH(f)), + make_int(FRAME_CHARHEIGHT(f)), Qnil); } if (!keep_char_size)