From maintainers-request at octave dot org Mon Jan  9 05:50:55 2006
Subject: Re: Successful compilation with MinGW
From: Shai Ayal <shaiay at gmail dot com>
To: Bill Denney <denney at seas dot upenn dot edu>
Cc: octave maintainers mailing list <maintainers at octave dot org>
Date: Mon, 9 Jan 2006 13:49:19 +0200

I think that including a cygwin1.dll in a "nice" windows installer is
not that hard. From what I remember, the problem pops up when you
already have another version of the cygwin1.dll installed you get very
bad conflicts since they seem to relay on version independent registry
entries-- i.e. installing octave+cygwin.dll in a system with cygwin
already installed would break the old cygwin installation.

If we were able to get around this problem, a one-step windows
installer would be possible.

Shai

I quote from the cygwin FAQ: http://cygwin.com/faq.html

"You should only have one copy of the Cygwin DLL on your system. If
you have multiple versions, they will conflict and cause problems.

If you get the error "shared region is corrupted" or "shared region
version mismatch" it means you have multiple versions of cygwin1.dll
running at the same time. This could happen, for example, if you
update cygwin1.dll without exiting all Cygwin apps (including inetd)
beforehand.

The only DLL that is sanctioned by the Cygwin project is the one that
you get by running http://cygwin.com/setup.exe, installed in the
directory controlled by this program. If you have other versions on
your system and desire help from the cygwin project, you should delete
or rename all DLLs that are not installed by setup.exe"


On 1/9/06, Bill Denney <denney at seas dot upenn dot edu> wrote:
> On Sun, 8 Jan 2006, John Swensen wrote:
>
> > This is a little off topic since you are talking about Octave without Cygwin,
> > but I have been working on an Octave GUI for the past year or so.  I only get
> > about an hour or two a week to work on it, but am slowly making progress.  It
> > requires Cygwin + Xwindows + various GTK packages from cygwin-ports (for
> > Windows), but also runs on OSX and Linux.  I have a rudimentary editor with
> > Octave syntax highlighting implemented with the GtkSourceView widget.  For
> > the gnome people out there, it is the same widget used for gedit.  My next
> > step is to integrate the source editor with the Octave debugging
> > underpinnings.  You can see a screenshot of the UI portion at
> > http://swenmac.homeip.net:8080/OctaveUI.png
> > The panels on the left are implemented with the widgets used in Gimp, such
> > that they can be tabbed together, detached completely, or docked in various
> > orders.
> > I have a friend who is setting up a Subversion repository and Trac wiki for
> > me.  Once I have that done and a little more debugging, I will post a link to
> > the sources to the list.
> >
> > I do have one Octave under MingW question.  Is there any big advantage to
> > running Octave under MingW rather than just with Cygwin?
>
> The UI looks pretty familiar.  I like it.
>
> The reason to use MingW instead of cygwin is that you don't need to
> install the full cygwin packages (which has been mentioned as intimidating
> before).  You can just make a normal-looking windows installer for it, and
> it can run as any other windows program.
>
> Bill
>
> --
> "Do you know how dumb the average person is? Well, half of them are
> dumber than that."
>    -- unattributed
>
>