[GRASS-dev] A portible shell for GRASS 7+ ?

[Michael Barton]

Although this sounds grim, it actually may not be as bad as it seems. Most
are x11 issues, and many have new TclTk equivalents. See below.

Michael
__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton


> From: Glynn Clements <glynn at gclements.plus.com>
> Date: Fri, 9 Jun 2006 21:28:22 +0100
> To: Michael Barton <michael.barton at asu.edu>
> Cc: "Laurent C." <lrntct at gmail.com>, Wolfgang Zillig <wollez at gmx.net>,
> grass-devel <grass-dev at grass.itc.it>
> Subject: Re: [GRASS-dev] A portible shell for GRASS 7+ ?
> 
> 
> Michael Barton wrote:
> 
>> If someone could compile the existing Windows native code with the d.modules
>> and gis.m intact, and start it up using native Windows wish it should run
>> theoretically. But I don¹t know how to do this and so can¹t test it. It
>> would be good to know if our efforts in this direction are helpful, though.
> 
> I can get most of GRASS to compile on Windows without Cygwin (this
> relies upon the not-yet-committed changes to libraster to allow
> driver-less rendering).
> 
> However, there appear to be some fundamental problems with the MSVC
> run-time, e.g. fseek() doesn't work on files opened for update
> ("wb+"), so I wouldn't expect it to run.
> 
> FWIW, the portions which fail to compile are:
> 
> lib/fonts/for_grass
> lib/vector/diglib
> 
> Both due to fseek() issues.

These may be the most problematic

> 
> display/d.colors
> raster/r.le/r.le.trace
> 
> Undefined reference to sleep()
> 

Neither needed for most GIS work.
d.colors requires x11 anyway and would not run without Cygwin

> display/d.mon/pgms
> 
> Undefined reference to ttyname()

Don't know what this might do

> 
> vector/v.digit
> 
> Undefined reference to gettimeofday()

Requires x11 and wouldn't run anyway without Cygwin

> 
> imagery/i.ortho.photo/photo.2image
> imagery/i.ortho.photo/photo.2target
> imagery/i.points
> imagery/i.vpoints
> 
> Missing <sys/wait.h>

i.points and v.points require x11 and replaced by TclTk georectifier. Have
to do without i.ortho.photo, but this is a specialized application.

> 
> imagery/i.class
> 
> Undefined SIGTSTP

It would be nice if this worked.

> 
> imagery/i.ortho.photo/photo.rectify
> imagery/i.rectify

i.rectify needs to work for the georectifier, but doesn't need to run in x11
interactive mode.

> 
> Both define a symbol "compress" which conflicts with zlib.
> 
> display/d.paint.labels
> raster/r.support/modcats
> raster/r.support/modcolr
> raster/r.support/modhist
> raster/r.support/modhead
> 
> Attempting to use ln/mv on files which don't exist (need to add the
> .exe suffix).


d.paint.lables/d.labels replaced by TclTk equivalent in gis.m. Didn't work
right in TclTk canvas anyway (at least on Mac)
r.support would be nice but not critical


> 
> This is with only mandatory external dependencies; no Tcl/Tk, PNG,
> TIFF, OpenGL etc.
> 
> -- 
> Glynn Clements <glynn at gclements.plus.com>