comparison lisp/find-paths.el @ 1330:4542b72c005e

[xemacs-hg @ 2003-03-01 07:25:26 by ben] build patch Makefile.in.in: Move src deletions to src/Makefile.in.in. dump-paths.el, dumped-lisp.el: Delete. Combine stuff into setup-paths.el. find-paths.el: Removed. Make this file contain generic routines only. Move stuff to compute Emacs roots to setup-paths.el. startup.el: Removed. Move these variables into setup-paths.el. setup-paths.el, startup.el: Removed. Combine all high-level code for computing the paths into setup-paths.el. Create new function startup-find-load-path to encapsulate all logic for computing `load-path'. Eliminate invocation-directory and invocation-name parameters since there is no point (false generality) -- the code references other globals, which cannot be specified. Eliminate some code duplicated between setup-paths.el and startup.el. Clean up the debug-paths code and output load-path in addition. Add logic to paths-emacs-root-p to support separated source and build trees. loadup.el, make-docfile.el, update-elc-2.el, update-elc.el: Rewrite to allow for separated source and build trees, as may occur in MS Windows. NOTE TO BUILD HACKERS: loadup.el, make-docfile.el, update-elc.el and update-elc-2.el made two assumptions that are no longer correct: (1) The source and build trees are in the same place. (2) They can make assumptions about where `.' is. These files now compute the locations of the source and build roots at the top of the file. *ALL* constant file names or path snippets must now be made absolute using expand-file-name and one of these roots. dumped-lisp.el, packages.el: Removed. Remove some unused lists of Lisp files. packages-hardcoded-lisp (empty, in any case) moved to dumped-lisp.el. startup.el: When a compiled init file is out-of-date wrt the uncompiled version, load the uncompiled version and issue a nasty warning. update-elc-2.el: Force touching of auto-autoloads files when REBUILD_AUTOLOADS was set. update-elc.el: Fix code that checks whether dumping is necessary to check against xemacs.dmp, not xemacs.exe, when Unix and pdump. lwlib-Xm.c: Fix compile warning. README, config.inc.samp, xemacs.mak: -- Major reorganization and cleanup. -- Add support for separated build tree and source tree. -- Delete all support for X Windows building, since it's totally bit-rotten and will never be fixed up. Instruct people to use Cygwin if they want such support. make-build-dir: New script to create a skeleton build tree for use with separated build and source tree compilation. m/acorn.h, m/alliant-2800.h, m/alliant.h, m/altos.h, m/amdahl.h, m/arm.h, m/att3b.h, m/aviion.h, m/clipper.h, m/cnvrgnt.h, m/convex.h, m/cydra5.h, m/delta.h, m/delta88k.h, m/dpx2.h, m/elxsi.h, m/ews4800r.h, m/gould.h, m/hp800.h, m/hp9000s300.h, m/i860.h, m/ibmps2-aix.h, m/ibmrs6000.h, m/ibmrt-aix.h, m/ibmrt.h, m/intel386.h, m/iris4d.h, m/iris5d.h, m/iris6d.h, m/irist.h, m/m68k.h, m/masscomp.h, m/mg1.h, m/mips-nec.h, m/mips-siemens.h, m/mips.h, m/nh3000.h, m/nh4000.h, m/ns32000.h, m/plexus.h, m/powerpc.h, m/sequent-ptx.h, m/sequent.h, m/sgi-challenge.h, m/stride.h, m/tad68k.h, m/targon31.h, m/tekxd88.h, m/template.h, m/tower32.h, m/tower32v3.h, m/ustation.h, m/wicat.h, m/xps100.h, data.c, doc.c, editfns.c, emacs.c, lrecord.h, ntheap.c, process-unix.c, sysdep.c, unexec.c: Delete all support for bit-rotten CANNOT_DUMP. Just use pdump. Makefile.in.in: Lots o' cleanup. Use names like LISP, SRC instead of lispdir, srcdir, for consistency with xemacs.mak and the conventions in the rest of the file. Eliminate use of ${...} in favor of $(...), to make it easier to move code between this file and xemacs.mak. Fix dependency handling wrt NEEDTODUMP to eliminate problems some people (e.g. Vin) have been seeing with non-GNU makes. Write a long section about the subtle but oh-so-important differences in dependency processing between nmake, make, and GNU make. Add unicode-encapsulate target, from xemacs.mak. chartab.c, lrecord.h: Fix crash due to attempt to free objects across dump/undump.
author ben
date Sat, 01 Mar 2003 07:25:56 +0000
parents 5636ae1c0234
children 13a418960a88
comparison
equal deleted inserted replaced
1329:389741884c65 1330:4542b72c005e
1 ;;; find-paths.el --- setup various XEmacs paths 1 ;;; find-paths.el --- setup various XEmacs paths
2 2
3 ;; Copyright (C) 1985-1986, 1990, 1992-1997 Free Software Foundation, Inc. 3 ;; Copyright (C) 1985-1986, 1990, 1992-1997 Free Software Foundation, Inc.
4 ;; Copyright (c) 1993, 1994 Sun Microsystems, Inc. 4 ;; Copyright (c) 1993, 1994 Sun Microsystems, Inc.
5 ;; Copyright (C) 1995 Board of Trustees, University of Illinois 5 ;; Copyright (C) 1995 Board of Trustees, University of Illinois
6 ;; Copyright (C) 2003 Ben Wing.
6 7
7 ;; Author: Mike Sperber <sperber@informatik.uni-tuebingen.de> 8 ;; Author: Mike Sperber <sperber@informatik.uni-tuebingen.de>
8 ;; Maintainer: XEmacs Development Team 9 ;; Maintainer: XEmacs Development Team
9 ;; Keywords: internal, dumped 10 ;; Keywords: internal, dumped
10 11
97 (defun paths-find-recursive-load-path (directories &optional max-depth) 98 (defun paths-find-recursive-load-path (directories &optional max-depth)
98 "Construct a recursive load path underneath DIRECTORIES." 99 "Construct a recursive load path underneath DIRECTORIES."
99 (paths-find-recursive-path directories 100 (paths-find-recursive-path directories
100 max-depth paths-no-lisp-directory-regexp)) 101 max-depth paths-no-lisp-directory-regexp))
101 102
102 (defun paths-emacs-root-p (directory)
103 "Check if DIRECTORY is a plausible installation root."
104 (or
105 ;; installed
106 (paths-file-readable-directory-p (paths-construct-path (list directory
107 "lib"
108 (construct-emacs-version-name))))
109 ;; in-place or windows-nt
110 (and
111 (paths-file-readable-directory-p (paths-construct-path (list directory "lisp")))
112 (paths-file-readable-directory-p (paths-construct-path (list directory "etc"))))))
113
114 (defun paths-emacs-data-root-p (directory)
115 "Check if DIRECTORY is a plausible data installation root.
116 A data installation root is one containing data files that may be shared
117 among multiple different versions of XEmacs, the packages in particular."
118 (or
119 ;; installed
120 (paths-file-readable-directory-p (paths-construct-path (list directory
121 "lib"
122 emacs-program-name)))
123 (paths-file-readable-directory-p (paths-construct-path (list directory
124 "lib"
125 (construct-emacs-version-name))))
126 ;; in-place or windows-nt
127 (and
128 (paths-file-readable-directory-p (paths-construct-path (list directory "lisp")))
129 (paths-file-readable-directory-p (paths-construct-path (list directory "etc"))))))
130
131 (defun paths-chase-symlink (file-name) 103 (defun paths-chase-symlink (file-name)
132 "Chase a symlink until the bitter end." 104 "Chase a symlink until the bitter end."
133 (let ((maybe-symlink (file-symlink-p file-name))) 105 (let ((maybe-symlink (file-symlink-p file-name)))
134 (if maybe-symlink 106 (if maybe-symlink
135 (let* ((directory (file-name-directory file-name)) 107 (let* ((directory (file-name-directory file-name))
136 (destination (expand-file-name maybe-symlink directory))) 108 (destination (expand-file-name maybe-symlink directory)))
137 (paths-chase-symlink destination)) 109 (paths-chase-symlink destination))
138 file-name))) 110 file-name)))
139
140 (defun paths-find-emacs-root
141 (invocation-directory invocation-name)
142 "Find the run-time root of XEmacs."
143 (let* ((executable-file-name (paths-chase-symlink
144 (concat invocation-directory
145 invocation-name)))
146 (executable-directory (file-name-directory executable-file-name))
147 (maybe-root-1 (file-name-as-directory
148 (paths-construct-path '("..") executable-directory)))
149 (maybe-root-2 (file-name-as-directory
150 (paths-construct-path '(".." "..") executable-directory))))
151 (or (and (paths-emacs-root-p maybe-root-1)
152 maybe-root-1)
153 (and (paths-emacs-root-p maybe-root-2)
154 maybe-root-2))))
155 111
156 (defun paths-construct-path (components &optional expand-directory) 112 (defun paths-construct-path (components &optional expand-directory)
157 "Convert list of path components COMPONENTS into a path. 113 "Convert list of path components COMPONENTS into a path.
158 If EXPAND-DIRECTORY is non-NIL, use it as a directory to feed 114 If EXPAND-DIRECTORY is non-NIL, use it as a directory to feed
159 to EXPAND-FILE-NAME." 115 to EXPAND-FILE-NAME."
296 (paths-filter #'(lambda (component) 252 (paths-filter #'(lambda (component)
297 (null (string-equal "" component))) 253 (null (string-equal "" component)))
298 directories) 254 directories)
299 directories))) 255 directories)))
300 256
301 (defun paths-find-emacs-roots (invocation-directory
302 invocation-name
303 root-p)
304 "Find all plausible installation roots for XEmacs.
305 INVOCATION-DIRECTORY is the directory from which XEmacs was started.
306 INVOCATION-NAME is the name of the XEmacs executable that was originally
307 started.
308 ROOT-P is a function that tests whether a root is plausible."
309 (let* ((potential-invocation-root
310 (paths-find-emacs-root invocation-directory invocation-name))
311 (invocation-roots
312 (and potential-invocation-root
313 (list potential-invocation-root)))
314 (potential-installation-roots
315 (paths-uniq-append
316 (and configure-exec-prefix-directory
317 (list (file-name-as-directory
318 configure-exec-prefix-directory)))
319 (and configure-prefix-directory
320 (list (file-name-as-directory
321 configure-prefix-directory)))))
322 (installation-roots
323 (paths-filter root-p potential-installation-roots)))
324 (paths-uniq-append invocation-roots
325 installation-roots)))
326
327 ;;; find-paths.el ends here 257 ;;; find-paths.el ends here