On Thu, Nov 25, 1999 at 08:18:52PM -0600, Bernhard Reiter wrote:
On Thu, Nov 25, 1999 at 02:13:12AM -0800, Russell Senior wrote:
> >>>>> "Bernhard" == Bernhard Reiter <bernhard@alpha1.csd.uwm.edu> writes:
> Bernhard> AFAIK the GPL allows linking with other truely free software
> Bernhard> packages.
BTw: This discussion was unrelated and took place in gnu.misc.discuss.
> BTW, had you noticed the problematic inclusion of the `Numerical
> Recipes' code in the now-GPL'd GRASS v5.0b4? Grep for `Cambridge
> University Press' and take a look at the conditions.
We will have to look into it than, I guess. We might have more licensing
problems in the code.
Here is, what my grep found:
grass5.0beta 58: find . -exec grep 'Cambridge University Press' /dev/null {} \;
./man/man1/i.fft:Cambridge University Press, 1988.
./man/man1/i.ifft:Cambridge University Press, 1988.
./src/imagery/i.cca/cmd/jacobi.c: (Cambridge University Press, 1988). Copyright (C) 1986, 1988 by
./src/imagery/i.cca/cmd/jacobi.c: (Cambridge University Press, 1988). Copyright (C) 1986, 1988 by
./src/imagery/i.fft/cmd/fft.c: (Cambridge University Press, 1988). Copyright (C) 1986, 1988 by
./src/imagery/i.pca/cmd/eigen.c: (Cambridge University Press, 1988). Copyright (C) 1986, 1988 by
./src/imagery/i.zc/cmd/fft.c: (Cambridge University Press, 1988). Copyright (C) 1986, 1988 by
./src.contrib/CERL/imagery/i.shape/fft.c: (Cambridge University Press, 1988). Copyright (C) 1986, 1988 by
./src.contrib/CERL/sites/s.surf.krig/NR.c:published by Cambridge University Press, and are used by permission."
It reads like:
/* Based on "Numerical Recipies in C; The Art of Scientific Computing"
(Cambridge University Press, 1988). Copyright (C) 1986, 1988 by
Numerical Recipes Software. Permission is granted for unlimited
use within GRASS only. */
and comes down to three relatively small functions:
"egvorder" (eigsrt) function
"fft" (fourn) function
"jacobi" function
./src.contrib/CERL/sites/s.surf.krig/NR.c contains more explaination
and different functions.
ludcmp routine - finds inverse of matrix A
lubksb routine - multiplies inverse of matrix A (from lucmp) by matrix b
and returns matrix x (weights) in "b".
I recommend removing these commands from the grass-beta source code
until some rewrites these basic functions or the copyright situtation
is clarified. I think the algorithms can be
found in any good algebra book. Somebody just have to do it.
Where the algorithms are adapted, I don't know if the copyright
actually still applies.
Bernhard
--
Research Assistant, Geog Dept UM-Milwaukee, USA. (www.uwm.edu/~bernhard)
Free Software Projects and Consulting (intevation.net)
Association for a Free Informational Infrastructure (ffii.org)
