bug#61980: [gnu.org #1925573] [Guile manual] Dead 404 link report.

Hello Guile maintainers,

Yuval Langer reports 2 dead links in the Guile manual (see below):

1) (html_node/SLIB.html) ../slib_html/Require.html#Require
   (guile.html) slib.html#Require
Replacement --> https://people.csail.mit.edu/jaffer/slib/Require.html#Require

2) (html_node/JACAL.html) ../jacal_html/index.html#Top
   (guile.html) jacal.html#Top
Replacement --> https://people.csail.mit.edu/jaffer/jacal/index.html


But there are many more. I checked the external links (http*) in the monolithic version, and found these:

* http://www.ccs.neu.edu/home/dorai/t-y-scheme/t-y-scheme.html
404

* http://mitpress.mit.edu/sicp/sicp.html
404

* http://www.gnome.org/projects/dia/
--> https://wiki.gnome.org/Apps/Dia/

* http://sites.google.com/site/evalapply/eccentric.txt
blocked by login (requires JavaScript)

* http://www.gnu.org/software/gettext/manual/gettext.html#GUI-program-problems
missing anchor

* https://sourceware.org/gdb/current/onlinedocs/gdb.html#Auto_002dloading
--> https://sourceware.org/gdb/current/onlinedocs/gdb.html/Auto_002dloading.html#Auto_002dloading

* https://sourceware.org/gdb/current/onlinedocs/gdb.html#Auto_002dloading-safe-path
missing anchor

* http://www-swiss.ai.mit.edu/~jaffer/JACAL.html
wrong redirect

* http://www.gnu.org/software/libc/manual/html_mono/libc.html#crypt
--> https://www.gnu.org/software/libc/manual/html_mono/libc.html#Cryptographic-Functions ?
Encrypting Passwords --> Cryptographic Functions ?

* http://cnswww.cns.cwru.edu/php/chet/readline/readline.html#Top
404

* http://cnswww.cns.cwru.edu/php/chet/readline/readline.html#Conditional-Init-Constructs
404

* http://cnswww.cns.cwru.edu/php/chet/readline/readline.html#How-Completing-Works
404

* http://cnswww.cns.cwru.edu/php/chet/readline/readline.html#Completion-Functions
404

* http://dwarfstd.org/
301 --> https://web.archive.org/web/20230302153848/https://dwarfstd.org/

* http://clojure.org/transients
301 --> https://clojure.org/reference/transients

* http://www.gnu.org/copyleft/
301 --> https://www.gnu.org/licenses/copyleft.html

Le Dim 05 Mar 2023 01:45:13, [email protected] a écrit :
> In:
> 
> https://www.gnu.org/software/guile/manual/html_node/SLIB.html
> 
> the "require" link in "require can then be used in the usual way (see
> Require in The SLIB Manual). For example," is 404.
> 
> Many thanks,
> Yuval Langer.
> 

Le Dim 05 Mar 2023 01:49:28, [email protected] a écrit :
> (sorry for sending two emails at such a short interval)
> 
> In:
> 
> https://www.gnu.org/software/guile/manual/html_node/JACAL.html
> 
> the "Jacal" link in "For complete documentation on Jacal, please read
> the Jacal manual. If it has been installed on line, you can look at
> Jacal in JACAL Symbolic Mathematics System. Otherwise you can find it
> on the web at http://www-swiss.ai.mit.edu/~jaffer/JACAL.html"
> 
> is:
> 
> https://www.gnu.org/software/guile/manual/jacal_html/index.html#Top
> 
> which is a 404 page.
> 
> Many thanks,
> Yuval Langer.
>