[Bug: 21.5-b13] wrongly deletes an always visible window

================================================================ Dear Bug Team! The documentation says: The lisp code below does nothing that would make the window not be displayed in the frame. Therefore, the above quote says that the window should still be valid or not "deleted". But, window-live-p returns nil. The XEmacs documentation below says that the return value of nil means the window is deleted. Since the window was not really deleted, I believe window-live-p should have returned t. (switch-to-buffer-other-window "NewBuffer") (setq window (selected-window)) (read-string "Press ENTER: ") (message "window-live-p returned %s" (window-live-p window)) To reproduce this: 1. put the lisp code above into a file named t.el 2. run: xemacs -q -load t.el 3. after it prompts you to press ENTER, go ahead and press ENTER This bug causes ispell to fail. ispell.el apparently assumes a window will be alive, but since it is not alive, ispell fails. So if you fix the window bug, it will probably make ispell start working again. Here is how to reproduce the ispell bug: 1. Run xemacs -q 2. Click the mouse on the ispell icon 3. It will say "XEmacs" is misspelled. Type the r key to replace that word. 4. type the ENTER key It says, "Wrong type argument: window-live-p, #<window 0x106c>" But of course, it should not give that error message. Both the window-live-p and ispell bugs fail in xemacs 21.5.10, but not in 21.5.9, so apparently, 21.5.10 was the first version to have the bugs. The bugs remain in the current version of 21.5.13. ================================================================ System Info to help track down your bug: --------------------------------------- uname -a: Linux sumatra.ca.metsci.com 2.4.18-17.7.xsmp #1 SMP Tue Oct 8 12:37:04 EDT 2002 i686 unknown ./configure '--prefix=/sumatra/bjacob/xemacs-21.5.13_install' XEmacs 21.5-b13 "cauliflower" configured for `i686-pc-linux'. Compilation / Installation: Source code location: /sumatra/bjacob/xemacs-21.5.13 Installation prefix: /sumatra/bjacob/xemacs-21.5.13_install Operating system description file: `s/linux.h' Machine description file: `m/intel386.h' Compiler: gcc -Wall -Wno-switch -Winline -Wmissing-prototypes -Wsign-compare -Wundef -Wstrict-prototypes -Wshadow -Wmissing-declarations -g -O3 Relocating allocator for buffers: no GNU version of malloc: yes - Using Doug Lea's new malloc from the GNU C Library. Window System: Compiling in support for the X window system: - X Windows headers location: /usr/X11R6/include - X Windows libraries location: /usr/X11R6/lib - Handling WM_COMMAND properly. Using Lucid menubars. Using Lucid scrollbars. Using Motif dialog boxes. Using Motif native widgets. TTY: Compiling in support for ncurses. Compiling in support for GPM (General Purpose Mouse). Images: Compiling in support for GIF images (builtin). Compiling in support for XPM images. Compiling in support for PNG images. Compiling in support for JPEG images. Compiling in support for TIFF images. Sound: Compiling in support for sound (native). Databases: Compiling in support for Berkeley database. Compiling in support for LDAP. Internationalization: Mail: Compiling in support for "dot-locking" mail spool file locking method. Other Features: Inhibiting IPv6 canonicalization at startup. Compiling in support for dynamic shared object modules. Using the new portable dumper. Compiling in support for extra debugging code. 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: --------------------------------------------------------- Load-Path Lisp Shadows: ---------------------- (/sumatra/bjacob/xemacs-21.5.13_install/lib/xemacs/xemacs-packages/lisp/build/build-report /sumatra/bjacob/xemacs-21.5.13_install/lib/xemacs-21.5-b13/lisp/build-report) Installed XEmacs Packages: ------------------------- ((zenirc:version 1.13 :type regular) (xslt-process :version 1.11 :type regular) (xslide :version 1.06 :type regular) (xemacs-devel :version 1.52 :type single-file) (xemacs-base :version 1.75 :type regular) (w3 :version 1.28 :type regular) (vm :version 7.14 :type regular) (viper :version 1.35 :type regular) (view-process :version 1.12 :type regular) (vhdl :version 1.16 :type regular) (vc-cc :version 1.21 :type regular) (vc :version 1.37 :type regular) (tramp :version 1.12 :type regular) (tpu :version 1.12 :type regular) (tooltalk :version 1.13 :type regular) (tm :version 1.35 :type regular) (time :version 1.12 :type regular) (textools :version 1.14 :type regular) (text-modes :version 1.6 :type single-file) (texinfo :version 1.23 :type regular) (supercite :version 1.19 :type regular) (strokes :version 1.08 :type regular) (speedbar :version 1.26 :type regular) (sounds-wav :version 1.1 :type regular) (sounds-au :version 1.1 :type regular) (sml-mode :version 0.09 :type regular) (slider :version 1.13 :type regular) (sieve :version 1.13 :type regular) (sh-script :version 1.17 :type regular) (sgml :version 1.08 :type regular) (semantic :version 1.17 :type regular) (scheme :version 1.13 :type regular) (sasl :version 1.12 :type regular) (ruby-modes :version 1.01 :type regular) (rmail :version 1.13 :type regular) (reftex :version 1.28 :type regular) (python-modes :version 1.02 :type single-file) (psgml-dtds :version 1.02 :type regular) (psgml :version 1.4 :type regular) (ps-print :version 1.08 :type regular) (prog-modes :version 1 .72 :type single-file) (pgg :version 1.02 :type regular) (perl-modes :version 1.04 :type single-file) (pcomplete :version 1.02 :type regular) (pcl-cvs :version 1.64 :type regular) (pc :version 1.25 :type single-file) (os-utils :version 1.3 :type single-file) (ocaml :version 0.04 :type regular) (net-utils :version 1.31 :type single-file) (mmm-mode :version 1.0 :type regular) (misc-games :version 1.16 :type single-file) (mine :version 1.14 :type regular) (mh-e :version 1.19 :type regular) (mew :version 1.17 :type regular) (mailcrypt :version 2.12 :type regular) (mail-lib :version 1.57 :type regular) (liece :version 1.11 :type regular) (jde :version 1.45 :type regular) (ispell :version 1.24 :type regular) (ilisp :version 1.31 :type regular) (igrep :version 1.1 :type regular) (idlwave :version 1.28 :type regular) (ibuffer :version 1.08 :type regular) (hm--html-menus :version 1.2 :type regular) (haskell-mode :version 1.05 :type regular) (gnus :version 1.68 :type regular) (gnats :version 1.15 :type regular) (general-docs :version 1.0 :type regular) (games :version 1.13 :type regular) (fsf-compat :version 1.12 :type single-file) (frame-icon :version 1.09 :type regular) (fortran-modes :version 1.02 :type single-file) (forms :version 1.14 :type regular) (footnote :version 1.15 :type regular) (eudc :version 1.37 :type regular) (eterm :version 1.13 :type regular) (ess :version 1.03 :type regular) (eshell :version 1.05 :type regular) (emerge :version 1.09 :type regular) (elib :version 1.1 :type single-file) (eieio :version 1.04 :type regular) (efs :version 1.29 :type regular) (edt :version 1.12 :type regular) (edit-utils :version 2.0 :type single-file) (ediff :version 1.46 :type regular) (edebug :version 1.17 :type regular) (ecrypto :version 0.12 :type regular) (ecb :version 1.06 :type regular) (docbookide :version 0.06 :type regular) (dired :version 1.13 :type regular) (dictionary :version 1.11 :type regular) (debug :version 1.16 :type regular) (crisp :version 1.12 :type regular) (cookie :version 1.14 :type regular) (clearcase :version 1.06 :type regular) (cc-mode :version 1.33 :type regular) (calendar :version 1.19 :type regular) (calc :version 1.23 :type regular) (c-support :version 1.16 :type single-file) (build :version 1.1 :type regular) (bbdb :version 1.21 :type regular) (auctex :version 1.35 :type regular) (apel :version 1.26 :type regular) (ada :version 1.13 :type regular)) Installed Modules: ----------------- Features: -------- (mail-abbrevs xemacsbug shadow sendmail rfc822 zenirc-autoloads xslt-process-autoloads xslide-autoloads xemacs-devel-autoloads xemacs-base-autoloads w3-autoloads vm-autoloads viper-autoloads view-process-autoloads vhdl-autoloads vc-cc-autoloads vc-autoloads tramp-autoloads tpu-autoloads tooltalk-autoloads tm-autoloads time-autoloads textools-autoloads text-modes-autoloads texinfo-autoloads supercite-autoloads strokes-autoloads speedbar-autoloads sounds-wav-autoloads sounds-au-autoloads sml-mode-autoloads slider-autoloads sieve-autoloads sh-script-autoloads sgml-autoloads semantic-autoloads scheme-autoloads sasl-autoloads ruby-modes-autoloads rmail-autoloads reftex-autoloads python-modes-autoloads psgml-dtds-autoloads psgml-autoloads ps-print-autoloads prog-modes-autoloads pgg-autoloads perl-modes-autoloads pcomplete-autoloads pcl-cvs-autoloads pc-autoloads os-utils-autoloads ocaml-autoloads net-utils-autoloads mmm-mode-autoloads misc-games-autoloads mine-autoloads mh-e-autoloads mew-autoloads mailcrypt-autoloads mail-lib-autoloads liece-autoloads jde-autoloads ispell-autoloads ilisp-autoloads igrep-autoloads idlwave-autoloads ibuffer-autoloads hm--html-menus-autoloads haskell-mode-autoloads gnus-autoloads gnats-autoloads general-docs-autoloads games-autoloads fsf-compat-autoloads frame-icon-autoloads fortran-modes-autoloads forms-autoloads footnote-autoloads eudc-autoloads eterm-autoloads ess-autoloads eshell-autoloads emerge-autoloads elib-autoloads eieio-autoloads efs-autoloads edt-autoloads edit-utils-autoloads ediff-autoloads edebug-autoloads ecrypto-autoloads ecb-autoloads docbookide-autoloads dired-autoloads dictionary-autoloads debug-autoloads crisp-autoloads cookie-autoloads clearcase-autoloads cc-mode-autoloads calendar-autoloads calc-autoloads c-support-autoloads build-autoloads bbdb-autoloads auctex-autoloads apel-autoloads ada-autoloads modules-autoloads auto-autoloads loadhist rsz-minibuf auto-show fontl-hooks x-iso8859-1 code-cmds gutter-items menubar-items x-menubar mode-motion mouse behavior itimer auto-save lisp-mode easymenu iso8859-1 page buff-menu lib-complete cus-file derived newcomment env text-props frame obsolete cus-start custom widget cl-extra mini-cl cl cl-19 packages backquote unicode lucid-scrollbars cut-buffer lucid-menubars motif-dialogs x c-balloon-help tty-frames tty toolbar native-sound scrollbar unix-processes multicast network-streams subprocesses modules menu-accelerator-support menubar berkeley-db md5 xemacs gutter tiff png gif jpeg xpm xbm lisp-float-type file-coding linux dialog devices window-system base64) Recent keystrokes: ----------------- M-x r e p TAB o TAB r TAB b TAB BS x e TAB RET Recent messages (most recent first): ----------------------------------- Parsing /sumatra/bjacob/.mailrc... done Parsing /sumatra/bjacob/.mailrc... 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