RE: Motif and Xt Widgets using Cygwin20/NT

["Suhaib Siddiqi" <ssiddiqi at inspirepharm dot com>]

Exceed XDK will not work with the latest Cygwin 1.1.2.  Exceed XDk also
requires a lot of code hacking.  I found it a pain to port an X11/MOTIF code
to Windows.

Can you please be very brief?  I get confused with long e-mails ;-)

One thing to NOTE. Cygwin B20.1 is one thing and CYgwin 1.1.2 is another.
Cygwin 1.1.2 is the Cygwin version you install from
sources.redhat.com/cygwin
in the "latest" directory.

The X11 development kit on
ftp://sources.redhat.com/pub/cygwin/xfree/xc-4-binaries
is for Cygwin 1.1.2 and it will not work with Cygwin B20.1.  Cygwin 1.1.2 is
the
next generation version of Cygwin B20.1 with improved capabilities.

You should never ever mix any binaries from
ftp://sources.redhat.com/pub/cygwin/xfree/xc-4-binaries
with Cygwin B20.1.

The Lesstif binaries at http://www.lesstif.org are for Cygwin 1.1.2
There is not libXm.a in archives under
ftp://sources.redhat.com/pub/cygwin/xfree/xc-4-binaries
because it contains no binaries.  LessTIf is not part of stock X11 or Xfree
therefore it not a good idea to mix it in X11 distribution because it will
create more confusions.

As far as capabilities of Cygwin and developing MOTIF/X11 applications with
it, I can say for sure it
is a marvelous tools. I ported some very compilcated drug design 3D software
from SGI to Windows using Cygwin and my X11 developement tools from
Cygwin/XFree.
If you have the right libraries and insatlled properly, you should be able
to port your code with very little effort to Windows.

I would suggest.

1) Install Cygwin 1.1.2 using setup.exe from
ftp://sources.redhat.com/pub/cygwin/latest

2) Install X11R6 in /usr/X11R6 from
ftp://sources.redhat.com/pub/cygwin/xfree/xc-4-binaries


3) Install Lesstif from http://www.lesstif.org for Cygwin 1.1.x
into /usr/X11R6

Now you should be all set to go to port your code, unless you need
image librareis like tif, jpeg and png etc, which you could
grab from http://cygutils.netpedia.net and install them in /usr/lib and
/usr/include

Any more questions, please ask specific questions.  Your link problems are
because you installed Cygwin B20.1 and are using some of the libraries
for newer Cygwin which is Cygwin 1.1.2.


>
> 	There are also some totally undefined functions (Xshm, Xmalloc,
> Xcalloc, XWidthofScreen, ...) that are present within VMS and Solaris, but
> don't appear anywhere in the Xfree bundle.

Xshm is not supported by XFree itself, but you need IPC from
http://cygutils.netpedia.net to support SHM in your code.

There is a an order of link you must follow,
-lXm -lXt -lICE -lSM -lXext -lX11

otherwise you might get unresolved symbols.

No symbol had been taken out of XFree and non-added.  If any symbol
you think was present at Solaris, but not on Xfree, that
you need to research.  It is a 100% port of X11 libraries from Xfree86
which you use on Linux and other UNIX boxes.  Maybe your applications
needs to #include some headers from X11? did you do a grep -i '...' *.h
to see which headers have funtions you need and if they are included
by your code?


Suhaib


> -----Original Message-----
> From: cygwin-xfree-owner@sources.redhat.com
> [mailto:cygwin-xfree-owner@sources.redhat.com]On Behalf Of Poor, Jeff
> Sent: Monday, July 17, 2000 5:34 PM
> To: 'cygwin-xfree@sourceware.cygnus.com'
> Subject: RE: Motif and Xt Widgets using Cygwin20/NT
>
>
> It appears that I rattled a few nerves by asking the original question of
> this thread.  For that I do apologize.  I realize that Cygwin and all the
> related software items are "free", and that any support provided is major
> plus.
>
> Let me please recap my situation, and if there is a solution I
> would be most
> thankful for response:
>
> My only past experience with Cygwin was the B19 version packaged
> with ModSAF
> 5.0 (a STRICOM DOD defense simulation).  Folks at STRICOM were capable of
> getting ModSAF (a UNIX/X11 application) running under Cygwin,
> with some help
> from Hummingbird (Exceed).
>
> As stated in my original message, I have large scale Alpha/VMS C/X11/Motif
> application I would like to attempt to re-host on a PC (Win-NT) without
> major changes to the software.  Cygwin seem a feasible method for
> attempting
> this task, so I DID research the web pages and attempted to develop a
> working configuration.
>
> Obviously, some of us that aren't intimate with the Cygwin development are
> unclear on versioning of the product (doesn't the confusion in the past
> email relay this issue?).  I believe there is something called
> B19, another
> called B20 (beta versions, downloadable?) ... and still something
> else known
> as V1.1.2 (is this the distributed CD-ROM product?).
>
> As I stated in my original message, I did tinker some with various "X11"
> releases and Cygwin B20 (i.e. I used Cygwin_B20_full.exe
> cygwin-xfree-x11r6.4-cygwin-B20.1.tar).  I tried using the Unv of
> Tennessee
> self-install, and then tried running the DroolView update.  I
> tried using a
> the file B20_X11R6_4.tar.gz created by Arlindo da Silva out of
> NASA/Goddard.
>
>
> I did read the FAQ's and the mail archives attempting to get past the
> version incompatibilities, which eventually lead me to the submitting my
> question (i.e. Motif and Xt Widgets using Cygwin20/NT).
>
> The initial response back from the mail list was: "link to libXm.a and if
> you do not have it get it from www.lesstif.org".   I followed those
> directions, which created the "version problems" and created a
> new "crop" of
> questions on my part. Suhaib's response then was: "  You are
> doing something
> basically very wrong, mixing X11R6.4 for B20.1 with Cygwin 1.1.2, ...".
>
> My two questions at this point are:
>
> 1) 	How can you state that I'm "X11R6.4 for B20.1 with Cygwin 1.1.2"?  I
> thought I was using B20, and really have no idea how you came to the
> conclusion I was using "1.1.2".
>
> 2) Where specifically is a "installable" version of Cygwin
> (version 1.1????)
> available that will run with the file
> lesstif-0_90-cygwin-1_1_tar.gz (which
> appears to be the resource I need to get the Motif like
> functions)?  Mirror
> sites appear to only have setups for B20 versions.  Is it possible
> (plausible) to un-tar the file cygwin-1.1.2.tar.gz into my B20 directory
> structure and have it run (vs. doing a Windows-NT Install)?
>
> Again, I apologize for my blatant ignorance one the subject at hand (I did
> state up front that wasn't "an expert").  Hopefully this message conveys
> that fact that there is confusion in the realm ... perhaps a
> short tutorial
> on the subject would aid all of us.
>
> Thank you again for all the time and effort put forth.
>
> Jeff Poor
> Northrop Grumman
> Airborne Ground Surveillance and Battle Management Systems
> Melbourne, Florida
> (321) 726-7335   poorje@mail.northgrum.com
>
> 	----------
> 	From:  Poor, Jeff
> 	Sent:  Friday, July 14, 2000 12:40 PM
> 	To:  'cygwin-xfree@sourceware.cygnus.com'
> 	Subject:  Motif and Xt Widgets using Cygwin20/NT
>
> 	I'm attempting to port a large GUI application (written in C) that
> originally ran on an Alpha/VMS system onto a PC running NT4.0.
> By no means
> am I a Motif/X11 expert, but I have successfully ported this
> application to
> a SUN/Solaris platform with very little effort.
>
> 	I've installed Cygwin with the Cygwin_B20_full.exe, and have used
> the cygwin-xfree-x11r6.4-cygwin-B20.1.tar file to get the latest X11 &
> Motif.  (Note, I danced around quite a bit getting correct version that
> worked, DLLs, etc.)
>
> 	At this point, a large number of the Motif Widget classes aren't
> being found .... for instance, when I go to link I see things such as:
>
> 	  undefined reference to `xmTextWidgetClass'
> 	  undefined reference to `xmSeparatorWidgetClass'
> 	  undefined reference to `xmArrowButtonWidgetClass'
> 	  undefined reference to `xmArrowButtonWidgetClass'
> 	  undefined reference to `xmSeparatorWidgetClass'
> 	  undefined reference to `xmTextWidgetClass'
> 	  undefined reference to `XmTextSetString'
>
> 	Each of these classes are defined as "extern" with the *.h (header)
> files under /X11R6.4/lesstif/Motif1.2/include (and Motif2.0).
>
> 	There are also some totally undefined functions (Xshm, Xmalloc,
> Xcalloc, XWidthofScreen, ...) that are present within VMS and Solaris, but
> don't appear anywhere in the Xfree bundle.
>
>
> ------------------------------------------------------------------
> ----------
> ----
> 	Also, in the link phase I get the following messages which are X11
> related but not specific to the above mission objects:
>
> 	   /.../X11R6.4/lib/libXt.a(Shell.o)(.text+0x35aa):Shell.c:
> undefined reference to `IceConnectionNumber'
> 	   /.../X11R6.4/lib/libXt.a(Shell.o)(.text+0x3c44):Shell.c:
> undefined reference to `IceProcessMessages'
>
> 	Any leads on what these anomalies are caused by?  THANKS!!!!
>
>
> 	Jeff Poor
> 	Northrop Grumman
> 	Airborne Ground Surveillance and Battle Management Systems
> 	Melbourne, Florida
> 	(321) 726-7335   poorje@mail.northgrum.com
>