Edit detail for #109 hyperdoc uncompress failed revision 1 of 1

changed:
-
Greetings!  Anyone see this when trying to run the graphics demos from
the hyperdoc utility?::

  (1) -> uncompress: 
  "/fix/t1/camm/debian/axiom/axiom-20050205/mnt/linux/doc/viewports/
    OneVariableGraphicsPage1.VIEW/image.xpm.Z".gz:
  No such file or directory


From BillPage Wed Mar 30 09:55:23 -0600 2005
From: Bill Page
Date: Wed, 30 Mar 2005 09:55:23 -0600
Subject: See #129
Message-ID: <20050330095523-0600@page.axiom-developer.org>



From kratt6 Thu Jun 9 06:21:50 -0500 2005
From: kratt6
Date: Thu, 09 Jun 2005 06:21:50 -0500
Subject: 
Message-ID: <20050609062150-0500@page.axiom-developer.org>

(from William Sitt, email of Monday, February 21, 2005 2:51 AM)


I would like to report that compiling Feb 2005 release on Fedora FC2
was successful. However, when running Hyperdoc and selecting Topic,
graphics, 2d-graphics, Parametric Curves, draw(...) I got the error: 

  sh: line1: uncompress: command not found.

 

To solve the problem, I put in the following symbolic links::

  su
  cd /bin
  ln -s gzip compress
  ln -s gunzip uncompress

and that solves the problem.


Perhaps Axiom should change its use of these obsolete commands?

From kratt6 Fri Jun 17 07:29:50 -0500 2005
From: kratt6
Date: Fri, 17 Jun 2005 07:29:50 -0500
Subject: Fix
Message-ID: <20050617072950-0500@page.axiom-developer.org>

The command 'uncompress' appears only in line 114 of
'src/lib/pixmap.c.pamphlet' and should be replaced by 'gunzip' there.

From kratt6 Fri Jun 17 07:30:05 -0500 2005
From: kratt6
Date: Fri, 17 Jun 2005 07:30:05 -0500
Subject: property change
Message-ID: <20050617073005-0500@page.axiom-developer.org>

Status: open => fix proposed 


From TimDaly Sun Oct 30 12:57:01 -0600 2005
From: Tim Daly
Date: Sun, 30 Oct 2005 12:57:01 -0600
Subject: property change
Message-ID: <20051030125701-0600@wiki.axiom-developer.org>

Status: fix proposed => pending (next release) 


From TimDaly Sun Oct 30 12:57:59 -0600 2005
From: Tim Daly
Date: Sun, 30 Oct 2005 12:57:59 -0600
Subject: 
Message-ID: <20051030125759-0600@wiki.axiom-developer.org>

gunzip properly handles .Z compress files.
I checked with FC4 and uncompress is missing.
Since you need gzip to build Axiom you likely have gunzip.


From BillPage Wed Jun 21 06:20:31 -0500 2006
From: Bill Page
Date: Wed, 21 Jun 2006 06:20:31 -0500
Subject: graphic demos work
Message-ID: <20060621062031-0500@wiki.axiom-developer.org>

Status: pending (next release) => closed 


From BillPage Tue Feb 6 22:37:33 -0600 2007
From: Bill Page
Date: Tue, 06 Feb 2007 22:37:33 -0600
Subject: wh-sandbox: error in hyperdoc - uncompress is obsolete
Message-ID: <20070206223733-0600@wiki.axiom-developer.org>

Status: closed => fix proposed 


From BillPage Tue Feb 6 22:42:30 -0600 2007
From: Bill Page
Date: Tue, 06 Feb 2007 22:42:30 -0600
Subject: Re: wh-sandbox: error in hyperdoc
Message-ID: <20070206224230-0600@wiki.axiom-developer.org>

On February 6, 2007 11:01 AM Waldek Hebisch wrote:

Bill Page wrote::
 
 > While testing Hyperdoc in the current version wh-sandbox on OpenSuSE 10.2 I
 > encountered the following problem while run some example graphics:
 > 
 > Hyperdoc processed crashed (window disappeared) and the following message
 > appeared in the Axiom console session:
 > 
 > (2) -> XIO:  fatal IO error 104 (Connection reset by peer) on X server ":0.0"
 >       after 40603 requests (40235 known processed) with 0 events remaining.
 > read_pixmap_file: unable to open
 > 
 /home/wspage/axiom-sandbox/target/i686-suse-linux/share/viewports/AssortedGraphicsExamplePage6.VIEW/image.xpm
 > uncompress: No such file or directory
 > 
 > -------
 > 
 > My understanding is that 'uncompress' is an obselete name for 'gzip -d'. Is that
 > correct?

 
Not exactly, 'uncompress' the program to decompress .Z (LZW compressed)
files.  Later 'gzip' was created and to large degree reduced need to
use 'compress' and 'uncompress'.  And yes, 'gzip -d' can do the job
of 'uncompress' (and more).
 
I have met similar (or maybe exactly this) problem.  'uncompress'
program is uses by Xpm library - to see any images at all you
must have 'uncompress' program (shell script passing work to 'gzip -d'
may serve as a replacement).  But on some machines there are problems
even if 'uncompress' is present.  In fact on dual core Pentums running
Debian prerelease most of the time I get error trying to see images
(but sometimes images work).  I have traced my problem to Xpm library
- it looked that 'uncompress' was nicely decompressing images,
but for unknown reasons Xpm library decided that 'uncompress' was
not working and returned error indication.  I am not sure where the
real error is: it may be bug in this version of Xpm library, it may
be that Hyperdoc is messing with process control in ways which
confilct with Xpm.  All machines where I was able to reproduce the
problem run the same version of Debian on the same hardware, so it
looked likely that this is a bug in Debian provided Xpm library.
 
There is a workaroud: in wh-sandbox Hyperdoc will uncompressed files
if they are present (or 'gzip' compressed ones, but AFAIK 'gzip -d'
has the same problem as 'uncompress').  At least in my case reading
uncompressed images never failed.  So you can try uncomressing
all .xpm.Z files (wastefull on space, but should work ...).
 
In the future we want to replace Xpm library by a different (portable)
image library, so the problem should automatically go away.  If the
problem affects more poeple I will probably look again at it to
find quicker solutuion.
 

  (1) -> uncompress: 
  "/fix/t1/camm/debian/axiom/axiom-20050205/mnt/linux/doc/viewports/
    OneVariableGraphicsPage1.VIEW/image.xpm.Z".gz:
  No such file or directory

  su
  cd /bin
  ln -s gzip compress
  ln -s gunzip uncompress

 > While testing Hyperdoc in the current version wh-sandbox on OpenSuSE 10.2 I
 > encountered the following problem while run some example graphics:
 > 
 > Hyperdoc processed crashed (window disappeared) and the following message
 > appeared in the Axiom console session:
 > 
 > (2) -> XIO:  fatal IO error 104 (Connection reset by peer) on X server ":0.0"
 >       after 40603 requests (40235 known processed) with 0 events remaining.
 > read_pixmap_file: unable to open
 > 
 /home/wspage/axiom-sandbox/target/i686-suse-linux/share/viewports/AssortedGraphicsExamplePage6.VIEW/image.xpm
 > uncompress: No such file or directory
 > 
 > -------
 > 
 > My understanding is that 'uncompress' is an obselete name for 'gzip -d'. Is that
 > correct?