Re: guile-gnome-0 - guile-1.6.8-6.3 - random crash

[David Pirotte <david@altosw.be>]

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forgot to attach postgres.scm ...


Le Thu, 08 Apr 2010 20:53:17 +0200,
Andy Wingo <wingo@pobox.com> a écrit :

> Hi David,
> 
> I'm happy to help, and glad to hear things are going OK. You probably
> have the largest guile-gnome-using apps out there... Also, one of these
> three lists is probably enough ;)

:-) left guile-devel only this time

> On Thu 08 Apr 2010 20:06, David Pirotte <david@altosw.be> writes:
> ...

> I just downloaded
> http://vychodil.inf.upol.cz/research/development/gtrees/download/gtrees-0.5-alpha.tar.bz2,
> and it seems to compile fine against 2.0. I did a (load-extension
> "./libgtrees" "define_gtrees_module") and that worked, and then
> (use-modules (gtrees-module)) and that worked too.

Yes. Just made things working both with guile-1.6 and guile-1.8 [on the same
machine I mean], by changing the module definition as this [if others would like to
do so...]:

;; --
(define-module (struct gtrees))

(let ((ef-ver (string->symbol (effective-version))))
  (case ef-ver
    ((#{1.6}#)
     (dynamic-call "init_gtrees_module"
		   (dynamic-link "/usr/local/lib/gtrees-0.3/libgtrees.so")))
    (else
     (dynamic-call "init_gtrees_module"
		   (dynamic-link "/usr/local/lib/gtrees-0.5/libgtrees.so")))
    ))
;; --

> Perhaps you will be able to skip 1.8 ;-) But it should work with 1.8 as well.

Well, as much as possible, due to the amount of work I have, I'll stick to debian
packages until I finish the application I am working on, then I'll try 2.0 and
guile-vm, I can't wait! but I have to :-(

> > 	guile-1.8 and guile-pg, a prehistoric version which will remain so until
>                       ^^ 

> No such luck with guile-pg, it will need patches. I even tried applying
> debian's patches to see if that would help, but guile-pg uses gh.h.
> Copying Thien-Thi, who appears to be the upstream: what is the right
> thing to do here? Get it into a project on savannah in git hosting, no?

If you remember, thanks to dsmith, on xchat, I could produce a guile-pg [debian]
package patched that works with guile-1.8 [the problem was a dependency one: here is
what I wrote to myself:

;;;
;;; Debian package [patching guile-pg-0.16]
;;;

A] Getting the source

	cd ~/alto/admin/guile-pg
	apt-get build-dep guile-pg
	apt-get source guile-pg
	cd guile-pg-0.16

B] Changing the dependency towards guile-1.8
   
 	cd guile-pg-0.16/debian
	
   perform the following change

<	Build-Depends: debhelper (>> 4.0), quilt, libpq-dev, guile-1.6-dev
>	Build-Depends: debhelper (>> 4.0), quilt, libpq-dev, guile-1.8-dev

	But I also wrote something about patching libpostgres.c and .h,
	[postgres-7.4: the only SW that's still is not a debian package [in my
	dependency 'little tower'] but a manual compilation [and they are @ 8.4 now,
	so quite late on this side too ...] can't find right now but if people are
	interested i'll make that info avalable too, let me know.

C] Then I changed the module definition [attached]

;; --

So I was wondering, in order to be as practicle as possible and save 'lost'
debugging time, is it possible to install both guile-gnom0 and guile-gnome2 on the
same machine ?

	I think I tried and didn't work, but I might be wrong.

That would fantastic because I could right away porting the development I am doing
and later on port the old apps.

Cheers,
David





[-- Attachment #2: postgres.scm --]
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;;; postgres.scm --- wrap PostgreSQL libpq

;;    Guile-pg - A Guile interface to PostgreSQL
;;    Copyright (C) 1999,2000,2002,2003 Free Software Foundation, Inc.
;;
;;    This program 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 2 of the License, or
;;    (at your option) any later version.
;;
;;    This program 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 this program; if not, write to the Free Software
;;    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

;;    Author: Ian Grant <Ian.Grant@cl.cam.ac.uk>

;; Load the C interface functions

(define-module (database postgres))

(let ((ef-ver (string->symbol (effective-version))))
  (case ef-ver
    ((#{1.6}#)
     (dynamic-call "init_postgres"
		   (dynamic-link "/usr/alto/admin/guile-pg/guile-1.6/libpostgres.so")))
    (else
     (dynamic-call "init_postgres"
		   (dynamic-link "/usr/alto/admin/guile-pg/guile-1.8/libpostgres.so")))
    ))

#!
(cond
 ;; maybe this is already done
 ((and (defined? 'pg-guile-pg-loaded) pg-guile-pg-loaded))
 ;; use app-module loader if there
 ((defined? 'make-app-module-loader)
  ((make-app-module-loader
    (lambda (name)
      (car (list
            `("~A/guile-pg/0.16" ,(assq-ref %guile-build-info 'libdir)))))
    (lambda (name)
      `("lib~A" ,name))
    (lambda (name)
      `("init_~A" ,name)))
   "postgres"))
 ;; primitive way
 (else (dynamic-call
        "init_postgres"
        (dynamic-link
         (car (list
               (format #f "~A/guile-pg/0.16/libpostgres.so"
                       (assq-ref %guile-build-info 'libdir))))))))
!#

(export pg-guile-pg-loaded)             ; ugh

(export pg-connectdb)
(export pg-connection?)
(export pg-setdb)
(export pg-reset)
(export pg-get-client-data)
(export pg-set-client-data!)
(export pg-exec)
(export pg-result?)
(export pg-error-message)
(export pg-get-db)
(export pg-get-user)
(export pg-get-pass)
(export pg-get-host)
(export pg-get-port)
(export pg-get-tty)
(export pg-get-options)
(export pg-get-connection)
(export pg-backend-pid)
(export pg-result-status)
(export pg-ntuples)
(export pg-nfields)
(export pg-cmdtuples)
(export pg-oid-status)
(export pg-oid-value)
(export pg-fname)
(export pg-fnumber)
(export pg-ftype)
(export pg-fsize)
(export pg-getvalue)
(export pg-getlength)
(export pg-getisnull)
(export pg-binary-tuples?)
(export pg-fmod)
(export pg-guile-pg-version)
(export pg-getline)
(export pg-putline)
(export pg-endcopy)
(export pg-trace)
(export pg-untrace)

(export pg-make-print-options)
(export pg-print)

(export pg-lo-creat)
(export pg-lo-open)
(export pg-lo-unlink)
(export pg-lo-get-connection)
(export pg-lo-get-oid)
(export pg-lo-tell)
(export pg-lo-seek)
(export pg-lo-read)
(export pg-lo-import)
(export pg-lo-export)

(define-public (pg-guile-pg-module-config-stamp) "Sun Apr 15 15:55:56 UTC 2007")
(define-public (pg-guile-pg-module-version) "0.16")

;; backward compatibility (not documented to encourage
;;                         usage of symbols in new code)
;;
;; WARNING: these will go away!

(define-public PGRES_EMPTY_QUERY    'PGRES_EMPTY_QUERY)
(define-public PGRES_COMMAND_OK     'PGRES_COMMAND_OK)
(define-public PGRES_TUPLES_OK      'PGRES_TUPLES_OK)
(define-public PGRES_COPY_OUT       'PGRES_COPY_OUT)
(define-public PGRES_COPY_IN        'PGRES_COPY_IN)
(define-public PGRES_BAD_RESPONSE   'PGRES_BAD_RESPONSE)
(define-public PGRES_NONFATAL_ERROR 'PGRES_NONFATAL_ERROR)
(define-public PGRES_FATAL_ERROR    'PGRES_FATAL_ERROR)

;;; postgres.scm ends here