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README
Created by Laurence D. Finston (LDF)
 
* (1) Copyright and License.

This file is part of GNU 3DLDF, a package for three-dimensional drawing.  
Copyright (C) 2003, 2004, 2005, 2006, 2007 The Free Software Foundation  

GNU 3DLDF is free software; you can redistribute it and/or modify 
it under the terms of the GNU General Public License as published by 
the Free Software Foundation; either version 3 of the License, or 
(at your option) any later version.  

GNU 3DLDF is distributed in the hope that it will be useful, 
but WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
GNU General Public License for more details.  

You should have received a copy of the GNU General Public License 
along with GNU 3DLDF; if not, write to the Free Software 
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA 

GNU 3DLDF is a GNU package.  
It is part of the GNU Project of the  
Free Software Foundation 
and is published under the GNU General Public License. 
See the website http://www.gnu.org 
for more information.   
GNU 3DLDF is available for downloading from 
http://www.gnu.org/software/3dldf/LDF.html.
It is also available from 
http://www.dante.de/software/ctan/, the Dante www-server  
and from http://wwwuser.gwdg.de/~lfinsto1, 
the author's website.  

Please send bug reports to lfinsto1@gwdg.de
The mailing list help-3dldf@gnu.org is available for people to 
ask other users for help.  
The mailing list info-3dldf@gnu.org is for sending 
announcements to users. To subscribe to these mailing lists, send an 
email with ``subscribe <email-address>'' as the subject.  

The author can be contacted at: 

Laurence D. Finston                  
c/o Free Software Foundation, Inc.  
51 Franklin St, Fifth Floor          
Boston, MA  02110-1301              
USA                               

lfinsto1@gwdg.de
s246794@stud.uni-goettingen.de 


$Id: README,v 1.5 2007/09/19 10:59:40 lfinsto1 Exp $

* IMPORTANT! LDF 2004.09.09.

I am currently in the process of preparing an alpha release,
to be called "GNU 3DLDF 1.2.0.1".  I will be using the number "1.2.0" 
to identify preliminary versions, so this number does not identify 
a particular release.

I am also working on updating this file.  Some of the 
information in it _no longer applies_.  Please contact 
`help-3dldf@gnu.org' if you have questions.

For more information specifically about the preliminary versions, 
see the files `00README' and `00NEWS'.

* Downloading

GNU 3DLDF is available for downloading from the following servers using
the protocols indicated (i.e., `ftp', `http', and `rsync'): 

Free Software Foundation/GNU Project server:

ftp://ftp.gnu.org/gnu/3dldf
http://ftp.gnu.org/gnu/3dldf

GWDG (Gesellschaft fuer wissenschaftliche Datenverarbeitung) server: 

http://ftp.gwdg.de/pub/gnu2/3dldf/
ftp://ftp.gwdg.de/pub/gnu2/3dldf/
rsync://ftp.gwdg.de/pub/gnu2/3dldf/ 

DANTE's CTAN server (DANTE = Deutschsprachige Anwendervereinigung TeX e.V., 
                     CTAN  = Comprehensive TeX Archive Network)
 
http://dante.ctan.org/CTAN/graphics/3DLDF/

and from the author's website:  
http://wwwuser.gwgd.de/~lfinsto1 

* Mailing lists

The following mailing lists are now available:
bug-3dldf@gnu.org  --- For bug reports.
help-3dldf@gnu.org --- For users to ask one another for help.  
info-3dldf@gnu.org --- For the maintainer of GNU 3DLDF to send 
                       announcements to users. 

To subscribe to these mailing lists, please send an 
email with ``subscribe'' as the subject.  


* Web sites
The official GNU 3DLDF website is
http://www.gnu.org/software/3dldf.  

* Description of GNU 3DLDF 

GNU 3DLDF is a package for three-dimensional drawing with MetaPost output.

* Documentation

The files /3DLDF-1.2.0/CWEB/3DLDFprg.ps and
/3DLDF-1.2.0/DOC/TEXINFO/3DLDF.ps contain respectively the documents  
_3DLDF: The Program_ and the _3DLDF User and Reference Manual_ 
in PostScript format.  In addition,
/3DLDF-1.2.0/CWEB/3DLDFprg.dvi contains _3DLDF: The Program_ in DVI
format.  If you need to  
regenerate the documentation for some reason, type `make ps' at the
command line from the directory /3DLDF-1.2.0/.  
Please note, that if you decide to run cweave on 3DLDFprg.web by hand,
be sure to use the version of the file cwebmacs.tex 
in /3DLDF-1.2.0/CWEB/, since I've made a number of additions and changes
to the original.  Ordinarily, it will be used automatically, so most
users won't need to worry about this. 

The file 3DLDF.info contains the _User and Reference Manual_ in
Info format.  It's generated by `make install'.  It can also be
generated by `make info'.  To make an HTML version, call
`makeinfo --html 3DLDF.texi'.  

I apologize for the number of typos and other errors in the
documentation.  I hope they don't detract from their usefulness.  
Please see the section ``Errata and Addenda'' on my website:
http://wwwuser.gwdg.de/~lfinsto1/index.html

* Installing 

See the file INSTALL for instructions on installing GNU 3DLDF.


* Patch instructions

The following instructions explain how to use 
`3DLDF-1.1.5.1-1.2.0.diff.gz' to update 3DLDF 1.1.5.1.

The best way to apply the patch `3DLDF-1.1.5.1-1.2.0.diff.gz' is to 
put the distribution of GNU 3DLDF 1.1.5.1 in a new directory, e.g.,
`3DLDF-1.1.5.1'.
You may want you create a distribution by calling `make dist' from a
shell in the working directory `3DLDF-1.1.5.1/'.
Then you will have to uncompress and expand `3DLDF-1.1.5.1.tar.gz':

     gunzip 3DLDF-1.1.5.1.tar.gz
     tar pxvf 3DLDF-1.1.5.1.tar

If you choose to use your existing `3DLDF-1.1.5.1' directory instead,
you should save any files you don't want changed in a safe place.  

Please note that the HTML version of the Texinfo manual is not part of
the distribution.  It is, however, downloadable separately from 
my website and the GWDG server, so there should be no need to
generate it yourself.  See `* Downloading', above, for the
URLs (Uniform Resource Locators).

Rename `3DLDF-1.1.5.1' `3DLDF-1.2.0'  

    mv 3DLDF-1.1.5.1 3DLDF-1.2.0

Now, put `3DLDF-1.1.5.1-1.2.0.diff.gz' in `3DLDF-1.2.0'.
Change the working directory to `3DLDF-1.2.0' and unpack 
`3DLDF-1.1.5.1-1.2.0.diff.gz':

    mv 3DLDF-1.1.5.1-1.2.0.diff.gz 3DLDF-1.2.0/
    cd 3DLDF-1.2.0
    gunzip 3DLDF-1.1.5.1-1.2.0.diff.gz

Apply the patch:

    patch -p1 -i 3DLDF-1.1.5.1-1.2.0.diff

* Running GNU 3DLDF

Once GNU 3DLDF is installed, put the code for your drawings in
/3DLDF-1.2.0/main.web, and call `make run' from the command
line in the directory /3DLDF-1.2.0/ to run 3dldf (the executable
program), MetaPost, TeX, and dvips, to generate a PostScript file
containing your drawings.  

As a convenience, 3DLDF-1.2.0/ and 3DLDF-1.2.0/CWEB/ both contain an
identical shell script called `ldfr', which simply calls 'make run',
so that GNU 3DLDF can be used conveniently from either directory.  

* make Targets

BUG FIX: I've added `touch 3DLDFmp.mp' to the `3DLDFmp.mp' target in
3DLDF-1.2.0/CWEB/Makefile.am.  This ensures that  
TeX and dvips will be run if MetaPost is run on `3DLDFmp.mp'.  This
happens if `3DLDFput.mp' is newer than `3DLDFmp.mp', but the latter
isn't changed, so TeX and dvips weren't being run.  I'm surprized
nobody's complained about this. Not yet documented in the
_3DLDF User and Reference Manual_. 

3DLDF-1.2.0/CWEB/Makefile.am contains several 
`PHONY' targets as synonyms for several targets.

These are targets that users may want to call often:

`cpl' for `3dldf':  For compiling and linking `3dldf'.

`mp' for `3DLDFmp.mp':  For running MetaPost on `3DLDFmp.mp'.

`ldf' for `3DLDFput.mp': For running `3dldf'.

Most users should never need to call `make ps' or `make pdf', 
unless they are making changes to GNU 3DLDF.

`ps' for generating `3DLDFprg.ps'.

`pdf' for generating `3DLDFprg.pdf'.  It uses `ps2pdf'.  Automake
doesn't generate a `pdf' target in 3DLDF-1.2.0/CWEB/ automatically,
but it does in 3DLDF-1.2.0/DOC/TEXINFO/.  However, it requires
`pdftex', which is not installed on the computer I'm using.  It may be
on yours, however, so I didn't want to override the default `pdf' target.

If you want to generate `3DLDF.pdf' for some reason, and `make pdf'
doesn't work on your computer either, try `ps2pdf 3DLDF.ps'.  However,
please note that `3DLDF.pdf' is included in the distribution and
available separately from my website and other download sites (see
"Downloading" above), along with `3DLDF.ps'. 
The HTML version is also available from my website,
http://ftp.gwdg.de/pub/gnu2/3dldf/
ftp://ftp.gwdg.de/pub/gnu2/3dldf/
and 
rsync://ftp.gwdg.de/pub/gnu2/3dldf/ 

These targets are new in GNU 3DLDF 1.2.0, and are not yet documented in
the _3DLDF User and Reference Manual_ (/3DLDF-1.2.0/DOC/TEXINFO/3DLDF.ps).  

To get rid of the files that GNU 3DLDF generates, without deleting any
important ones, call `make purge'.

For further information, see the _3DLDF User and
Reference Manual_ (/3DLDF-1.2.0/DOC/TEXINFO/3DLDF.ps).  

Users should avoid the use of the following extensions in 
/3DLDF-1.2.0/CWEB/: .rpo, .h, .hbk, .tim, and .tmw. 
Each CWEB file has corresponding files with the same name and 
these extensions.  

* Information on building:

If only TeX text, comments, or whitespace in the CWEB file are
changed, then no recompilation or relinking takes place, and the CWEB
file isn't retangled the next time `make 3dldf' is called.
Unfortunately, whitespace in literal strings that are part of the C++
code are also ignored, contrary to what I wrote in
3DLDF-1.2.0/CWEB/ChangeLog.  It's not likely that this will cause any
problems in actual use, though.

If only the C++ code has changed, the .cxx file is recompiled, and 3dldf is
relinked. 

If the header file has changed, all of the C++ files that depend on it are
recompiled, and 3dldf is relinked.

Two ``timer'' files are used for keeping track of whether
<filename>.h and/or <filename>.cxx has changed. 

The procedure seems to work when multiple files are changed in various
ways.  However, one unpleasant consequence is that the CWEB file must
be touched to give it an earlier timestamp in the case that neither
the C++ file nor the header file 
has changed (but only in this case!).  This means that the file has
changed on disk, so that 
the buffer must be reverted, if the user is currently working on it,
which is likely.  The shell script `tsthdweb' prints a message to this
effect to standard output.  It's annoying to have to revert the
buffer, but I haven't thought of a way
around this problem. It's a consequence of using the timestamps of
files to decide whether they need to be reprocessed. The best solution
may be to return to using an auxilliary program for controlling
recompilation.  However, this will mean maintaining two different
methods of rebuilding, because Automake requires valid build rules.

** Reverting buffers

If you're using Emacs, you can set a key to revert the buffer without
querying by putting the following sexp (s-expression, but I don't know
what ``s'' stands for) into your `.emacs' file:

(global-set-key [f5] '(lambda () (interactive) (revert-buffer t t)))

Or, if you're using, for example, foo mode, you can put the following 
sexp into your foo-mode-hook declaration:

(local-set-key foo-mode-map [f5] '(lambda () (interactive) 
                                  (revert-buffer t t)))
For example,
(setq lisp-mode-hook
      '(lambda ()
       (local-set-key [f5] '(lambda () (interactive) 
                                     (revert-buffer t t)))))

Or, if you've defined a foo mode yourself, you can put the key
assignment into foo-mode-map:

(if foo-mode-map ()
  (setq foo-mode-map (nconc (make-sparse-keymap) c-mode-map))
  (define-key foo-mode-map [f5] '(lambda () (interactive)
                                     (revert-buffer t t))))


*Information about Changes

For information about changes to GNU 3DLDF, see 
NEWS, ChangeLog, ./CWEB/ChangeLog, 
./DOC/ChangeLog, ./DOC/TEXINFO/ChangeLog, 
./RCSFREEZE.log
./CWEB/RCSFREEZE.log, ./DOC/RCSFREEZE.log, and ./DOC/TEXINFO/RCSFREEZE.log.  
The latter files
contain information about frozen configurations, referring to general
changes affecting multiple files.  


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1	lfinsto1	1.2	README
2			Created by Laurence D. Finston (LDF)
3
4	lfinsto1	1.5	* (1) Copyright and License.
5	lfinsto1	1.2
6	lfinsto1	1.5	This file is part of GNU 3DLDF, a package for three-dimensional drawing.
7			Copyright (C) 2003, 2004, 2005, 2006, 2007 The Free Software Foundation
8	lfinsto1	1.2
9			GNU 3DLDF is free software; you can redistribute it and/or modify
10			it under the terms of the GNU General Public License as published by
11	lfinsto1	1.6	the Free Software Foundation; either version 3 of the License, or
12	lfinsto1	1.5	(at your option) any later version.
13	lfinsto1	1.2
14			GNU 3DLDF is distributed in the hope that it will be useful,
15			but WITHOUT ANY WARRANTY; without even the implied warranty of
16			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17	lfinsto1	1.5	GNU General Public License for more details.
18	lfinsto1	1.2
19			You should have received a copy of the GNU General Public License
20			along with GNU 3DLDF; if not, write to the Free Software
21	lfinsto1	1.5	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22	lfinsto1	1.2
23			GNU 3DLDF is a GNU package.
24			It is part of the GNU Project of the
25			Free Software Foundation
26			and is published under the GNU General Public License.
27			See the website http://www.gnu.org
28			for more information.
29			GNU 3DLDF is available for downloading from
30	lfinsto1	1.5	http://www.gnu.org/software/3dldf/LDF.html.
31	lfinsto1	1.2	It is also available from
32			http://www.dante.de/software/ctan/, the Dante www-server
33	lfinsto1	1.5	and from http://wwwuser.gwdg.de/~lfinsto1,
34	lfinsto1	1.2	the author's website.
35
36	lfinsto1	1.5	Please send bug reports to lfinsto1@gwdg.de
37	lfinsto1	1.2	The mailing list help-3dldf@gnu.org is available for people to
38			ask other users for help.
39			The mailing list info-3dldf@gnu.org is for sending
40			announcements to users. To subscribe to these mailing lists, send an
41			email with ``subscribe <email-address>'' as the subject.
42	lfinsto1	1.5
43	lfinsto1	1.2	The author can be contacted at:
44
45	lfinsto1	1.6	Laurence D. Finston
46			c/o Free Software Foundation, Inc.
47			51 Franklin St, Fifth Floor
48			Boston, MA 02110-1301
49			USA
50	lfinsto1	1.2
51	lfinsto1	1.5	lfinsto1@gwdg.de
52	lfinsto1	1.2	s246794@stud.uni-goettingen.de
53
54
55	lfinsto1	1.7	$Id: README,v 1.5 2007/09/19 10:59:40 lfinsto1 Exp $
56	lfinsto1	1.2
57	lfinsto1	1.3	* IMPORTANT! LDF 2004.09.09.
58	lfinsto1	1.2
59			I am currently in the process of preparing an alpha release,
60	lfinsto1	1.7	to be called "GNU 3DLDF 1.2.0.1". I will be using the number "1.2.0"
61	lfinsto1	1.2	to identify preliminary versions, so this number does not identify
62			a particular release.
63
64			I am also working on updating this file. Some of the
65			information in it _no longer applies_. Please contact
66			`help-3dldf@gnu.org' if you have questions.
67
68	lfinsto1	1.3	For more information specifically about the preliminary versions,
69			see the files `00README' and `00NEWS'.
70
71	lfinsto1	1.2	* Downloading
72
73			GNU 3DLDF is available for downloading from the following servers using
74			the protocols indicated (i.e., `ftp', `http', and `rsync'):
75
76			Free Software Foundation/GNU Project server:
77
78			ftp://ftp.gnu.org/gnu/3dldf
79			http://ftp.gnu.org/gnu/3dldf
80
81			GWDG (Gesellschaft fuer wissenschaftliche Datenverarbeitung) server:
82
83			http://ftp.gwdg.de/pub/gnu2/3dldf/
84			ftp://ftp.gwdg.de/pub/gnu2/3dldf/
85			rsync://ftp.gwdg.de/pub/gnu2/3dldf/
86
87			DANTE's CTAN server (DANTE = Deutschsprachige Anwendervereinigung TeX e.V.,
88			CTAN = Comprehensive TeX Archive Network)
89
90			http://dante.ctan.org/CTAN/graphics/3DLDF/
91
92			and from the author's website:
93			http://wwwuser.gwgd.de/~lfinsto1
94
95			* Mailing lists
96
97			The following mailing lists are now available:
98			bug-3dldf@gnu.org --- For bug reports.
99			help-3dldf@gnu.org --- For users to ask one another for help.
100			info-3dldf@gnu.org --- For the maintainer of GNU 3DLDF to send
101			announcements to users.
102
103			To subscribe to these mailing lists, please send an
104			email with ``subscribe'' as the subject.
105
106
107			* Web sites
108			The official GNU 3DLDF website is
109			http://www.gnu.org/software/3dldf.
110
111			* Description of GNU 3DLDF
112
113			GNU 3DLDF is a package for three-dimensional drawing with MetaPost output.
114
115			* Documentation
116
117	lfinsto1	1.7	The files /3DLDF-1.2.0/CWEB/3DLDFprg.ps and
118			/3DLDF-1.2.0/DOC/TEXINFO/3DLDF.ps contain respectively the documents
119	lfinsto1	1.2	_3DLDF: The Program_ and the _3DLDF User and Reference Manual_
120			in PostScript format. In addition,
121	lfinsto1	1.7	/3DLDF-1.2.0/CWEB/3DLDFprg.dvi contains _3DLDF: The Program_ in DVI
122	lfinsto1	1.2	format. If you need to
123			regenerate the documentation for some reason, type `make ps' at the
124	lfinsto1	1.7	command line from the directory /3DLDF-1.2.0/.
125	lfinsto1	1.2	Please note, that if you decide to run cweave on 3DLDFprg.web by hand,
126			be sure to use the version of the file cwebmacs.tex
127	lfinsto1	1.7	in /3DLDF-1.2.0/CWEB/, since I've made a number of additions and changes
128	lfinsto1	1.2	to the original. Ordinarily, it will be used automatically, so most
129			users won't need to worry about this.
130
131			The file 3DLDF.info contains the _User and Reference Manual_ in
132			Info format. It's generated by `make install'. It can also be
133			generated by `make info'. To make an HTML version, call
134			`makeinfo --html 3DLDF.texi'.
135
136			I apologize for the number of typos and other errors in the
137			documentation. I hope they don't detract from their usefulness.
138			Please see the section ``Errata and Addenda'' on my website:
139			http://wwwuser.gwdg.de/~lfinsto1/index.html
140
141			* Installing
142
143			See the file INSTALL for instructions on installing GNU 3DLDF.
144
145
146			* Patch instructions
147
148			The following instructions explain how to use
149	lfinsto1	1.7	`3DLDF-1.1.5.1-1.2.0.diff.gz' to update 3DLDF 1.1.5.1.
150	lfinsto1	1.2
151	lfinsto1	1.7	The best way to apply the patch `3DLDF-1.1.5.1-1.2.0.diff.gz' is to
152	lfinsto1	1.2	put the distribution of GNU 3DLDF 1.1.5.1 in a new directory, e.g.,
153			`3DLDF-1.1.5.1'.
154			You may want you create a distribution by calling `make dist' from a
155			shell in the working directory `3DLDF-1.1.5.1/'.
156			Then you will have to uncompress and expand `3DLDF-1.1.5.1.tar.gz':
157
158			gunzip 3DLDF-1.1.5.1.tar.gz
159			tar pxvf 3DLDF-1.1.5.1.tar
160
161			If you choose to use your existing `3DLDF-1.1.5.1' directory instead,
162			you should save any files you don't want changed in a safe place.
163
164			Please note that the HTML version of the Texinfo manual is not part of
165			the distribution. It is, however, downloadable separately from
166			my website and the GWDG server, so there should be no need to
167			generate it yourself. See `* Downloading', above, for the
168			URLs (Uniform Resource Locators).
169
170	lfinsto1	1.7	Rename `3DLDF-1.1.5.1' `3DLDF-1.2.0'
171	lfinsto1	1.2
172	lfinsto1	1.7	mv 3DLDF-1.1.5.1 3DLDF-1.2.0
173	lfinsto1	1.2
174	lfinsto1	1.7	Now, put `3DLDF-1.1.5.1-1.2.0.diff.gz' in `3DLDF-1.2.0'.
175			Change the working directory to `3DLDF-1.2.0' and unpack
176			`3DLDF-1.1.5.1-1.2.0.diff.gz':
177	lfinsto1	1.2
178	lfinsto1	1.7	mv 3DLDF-1.1.5.1-1.2.0.diff.gz 3DLDF-1.2.0/
179			cd 3DLDF-1.2.0
180			gunzip 3DLDF-1.1.5.1-1.2.0.diff.gz
181	lfinsto1	1.2
182			Apply the patch:
183
184	lfinsto1	1.7	patch -p1 -i 3DLDF-1.1.5.1-1.2.0.diff
185	lfinsto1	1.2
186			* Running GNU 3DLDF
187
188			Once GNU 3DLDF is installed, put the code for your drawings in
189	lfinsto1	1.7	/3DLDF-1.2.0/main.web, and call `make run' from the command
190			line in the directory /3DLDF-1.2.0/ to run 3dldf (the executable
191	lfinsto1	1.2	program), MetaPost, TeX, and dvips, to generate a PostScript file
192			containing your drawings.
193
194	lfinsto1	1.7	As a convenience, 3DLDF-1.2.0/ and 3DLDF-1.2.0/CWEB/ both contain an
195	lfinsto1	1.2	identical shell script called `ldfr', which simply calls 'make run',
196			so that GNU 3DLDF can be used conveniently from either directory.
197
198			* make Targets
199
200			BUG FIX: I've added `touch 3DLDFmp.mp' to the `3DLDFmp.mp' target in
201	lfinsto1	1.7	3DLDF-1.2.0/CWEB/Makefile.am. This ensures that
202	lfinsto1	1.2	TeX and dvips will be run if MetaPost is run on `3DLDFmp.mp'. This
203			happens if `3DLDFput.mp' is newer than `3DLDFmp.mp', but the latter
204			isn't changed, so TeX and dvips weren't being run. I'm surprized
205			nobody's complained about this. Not yet documented in the
206			_3DLDF User and Reference Manual_.
207
208	lfinsto1	1.7	3DLDF-1.2.0/CWEB/Makefile.am contains several
209	lfinsto1	1.2	`PHONY' targets as synonyms for several targets.
210
211			These are targets that users may want to call often:
212
213			`cpl' for `3dldf': For compiling and linking `3dldf'.
214
215			`mp' for `3DLDFmp.mp': For running MetaPost on `3DLDFmp.mp'.
216
217			`ldf' for `3DLDFput.mp': For running `3dldf'.
218
219			Most users should never need to call `make ps' or `make pdf',
220			unless they are making changes to GNU 3DLDF.
221
222			`ps' for generating `3DLDFprg.ps'.
223
224			`pdf' for generating `3DLDFprg.pdf'. It uses `ps2pdf'. Automake
225	lfinsto1	1.7	doesn't generate a `pdf' target in 3DLDF-1.2.0/CWEB/ automatically,
226			but it does in 3DLDF-1.2.0/DOC/TEXINFO/. However, it requires
227	lfinsto1	1.2	`pdftex', which is not installed on the computer I'm using. It may be
228			on yours, however, so I didn't want to override the default `pdf' target.
229
230			If you want to generate `3DLDF.pdf' for some reason, and `make pdf'
231			doesn't work on your computer either, try `ps2pdf 3DLDF.ps'. However,
232			please note that `3DLDF.pdf' is included in the distribution and
233			available separately from my website and other download sites (see
234			"Downloading" above), along with `3DLDF.ps'.
235			The HTML version is also available from my website,
236			http://ftp.gwdg.de/pub/gnu2/3dldf/
237			ftp://ftp.gwdg.de/pub/gnu2/3dldf/
238			and
239			rsync://ftp.gwdg.de/pub/gnu2/3dldf/
240
241	lfinsto1	1.7	These targets are new in GNU 3DLDF 1.2.0, and are not yet documented in
242			the _3DLDF User and Reference Manual_ (/3DLDF-1.2.0/DOC/TEXINFO/3DLDF.ps).
243	lfinsto1	1.2
244			To get rid of the files that GNU 3DLDF generates, without deleting any
245			important ones, call `make purge'.
246
247			For further information, see the _3DLDF User and
248	lfinsto1	1.7	Reference Manual_ (/3DLDF-1.2.0/DOC/TEXINFO/3DLDF.ps).
249	lfinsto1	1.2
250			Users should avoid the use of the following extensions in
251	lfinsto1	1.7	/3DLDF-1.2.0/CWEB/: .rpo, .h, .hbk, .tim, and .tmw.
252	lfinsto1	1.2	Each CWEB file has corresponding files with the same name and
253			these extensions.
254
255			* Information on building:
256
257			If only TeX text, comments, or whitespace in the CWEB file are
258			changed, then no recompilation or relinking takes place, and the CWEB
259			file isn't retangled the next time `make 3dldf' is called.
260			Unfortunately, whitespace in literal strings that are part of the C++
261			code are also ignored, contrary to what I wrote in
262	lfinsto1	1.7	3DLDF-1.2.0/CWEB/ChangeLog. It's not likely that this will cause any
263	lfinsto1	1.2	problems in actual use, though.
264
265			If only the C++ code has changed, the .cxx file is recompiled, and 3dldf is
266			relinked.
267
268			If the header file has changed, all of the C++ files that depend on it are
269			recompiled, and 3dldf is relinked.
270
271			Two ``timer'' files are used for keeping track of whether
272			<filename>.h and/or <filename>.cxx has changed.
273
274			The procedure seems to work when multiple files are changed in various
275			ways. However, one unpleasant consequence is that the CWEB file must
276			be touched to give it an earlier timestamp in the case that neither
277			the C++ file nor the header file
278			has changed (but only in this case!). This means that the file has
279			changed on disk, so that
280			the buffer must be reverted, if the user is currently working on it,
281			which is likely. The shell script `tsthdweb' prints a message to this
282			effect to standard output. It's annoying to have to revert the
283			buffer, but I haven't thought of a way
284			around this problem. It's a consequence of using the timestamps of
285			files to decide whether they need to be reprocessed. The best solution
286			may be to return to using an auxilliary program for controlling
287			recompilation. However, this will mean maintaining two different
288			methods of rebuilding, because Automake requires valid build rules.
289
290			** Reverting buffers
291
292			If you're using Emacs, you can set a key to revert the buffer without
293			querying by putting the following sexp (s-expression, but I don't know
294			what ``s'' stands for) into your `.emacs' file:
295
296			(global-set-key [f5] '(lambda () (interactive) (revert-buffer t t)))
297
298			Or, if you're using, for example, foo mode, you can put the following
299			sexp into your foo-mode-hook declaration:
300
301			(local-set-key foo-mode-map [f5] '(lambda () (interactive)
302			(revert-buffer t t)))
303			For example,
304			(setq lisp-mode-hook
305			'(lambda ()
306			(local-set-key [f5] '(lambda () (interactive)
307			(revert-buffer t t)))))
308
309			Or, if you've defined a foo mode yourself, you can put the key
310			assignment into foo-mode-map:
311
312			(if foo-mode-map ()
313			(setq foo-mode-map (nconc (make-sparse-keymap) c-mode-map))
314			(define-key foo-mode-map [f5] '(lambda () (interactive)
315			(revert-buffer t t))))
316
317
318			*Information about Changes
319
320			For information about changes to GNU 3DLDF, see
321			NEWS, ChangeLog, ./CWEB/ChangeLog,
322			./DOC/ChangeLog, ./DOC/TEXINFO/ChangeLog,
323			./RCSFREEZE.log
324			./CWEB/RCSFREEZE.log, ./DOC/RCSFREEZE.log, and ./DOC/TEXINFO/RCSFREEZE.log.
325			The latter files
326			contain information about frozen configurations, referring to general
327			changes affecting multiple files.
328
329
330
331			%% Local Variables:
332			%% mode:TeX
333			%% outline-minor-mode:t
334			%% outline-regexp:"^\\*+"
335			%% End:
336
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