···

       
13
       
13
       
 
       
  zlib,

     

       
14
       
14
       
 
       
}:

     

       
15
       
15
       
 
       


     

       
16
       
16
       
+
       
let

     

       
17
       
17
       
+
       
  gecode_6_3_0 = gecode.overrideAttrs (_: {

     

       
18
       
18
       
+
       
    version = "6.3.0";

     

       
19
       
19
       
+
       
    src = fetchFromGitHub {

     

       
20
       
20
       
+
       
      owner = "gecode";

     

       
21
       
21
       
+
       
      repo = "gecode";

     

       
22
       
22
       
+
       
      rev = "f7f0d7c273d6844698f01cec8229ebe0b66a016a";

     

       
23
       
23
       
+
       
      hash = "sha256-skf2JEtNkRqEwfHb44WjDGedSygxVuqUixskTozi/5k=";

     

       
24
       
24
       
+
       
    };

     

       
25
       
25
       
+
       
    patches = [ ];

     

       
26
       
26
       
+
       
  });

     

       
27
       
27
       
+
       
in

     

       
28
       
28
       
+
       
let

     

       
29
       
29
       
+
       
  gecode = gecode_6_3_0;

     

       
30
       
30
       
+
       
in

     

       
31
       
31
       
+
       


     

       
16
       
32
       
 
       
stdenv.mkDerivation (finalAttrs: {

     

       
17
       
33
       
 
       
  pname = "minizinc";

     

       
18
       
34
       
 
       
  version = "2.9.3";

     
···

       
42
       
58
       
 
       
    mkdir -p $out/share/minizinc/solvers/

     

       
43
       
59
       
 
       
    jq \

     

       
44
       
60
       
 
       
      '.version = "${gecode.version}"

     

       
45
       
45
       
-
       
       | .mznlib = "${gecode}/share/gecode/mznlib"

     

       
61
       
61
       
+
       
       | .mznlib = "${gecode}/share/minizinc/gecode/"

     

       
46
       
62
       
 
       
       | .executable = "${gecode}/bin/fzn-gecode"' \

     

       
47
       
63
       
 
       
       ${./gecode.msc} \

     

       
48
       
64
       
 
       
       >$out/share/minizinc/solvers/gecode.msc

     

···

       
12
       
12
       
 
       
  dontInstall = true;

     

       
13
       
13
       
 
       


     

       
14
       
14
       
 
       
  buildCommand = ''

     

       
15
       
15
       
-
       
    minizinc --solver gecode ${./aust.mzn}

     

       
16
       
16
       
-
       
    minizinc --solver cbc ${./loan.mzn} ${./loan1.dzn}

     

       
17
       
17
       
-
       
    touch $out

     

       
15
       
15
       
+
       
    mkdir -p $out

     

       
16
       
16
       
+
       
    minizinc --solver gecode ${./aust.mzn} | tee $out/aust.log

     

       
17
       
17
       
+
       
    minizinc --solver gecode ${./nqueens.mzn} | tee $out/nqueens.log

     

       
18
       
18
       
+
       
    minizinc --solver cbc ${./loan.mzn} ${./loan1.dzn} | tee $out/loan.log

     

       
18
       
19
       
 
       
  '';

     

       
19
       
20
       
 
       


     

       
20
       
21
       
 
       
  meta.timeout = 10;

     

···

       
1
       
1
       
+
       
int: n = 8; % The number of queens.

     

       
2
       
2
       
+
       


     

       
3
       
3
       
+
       
array [1..n] of var 1..n: q;

     

       
4
       
4
       
+
       


     

       
5
       
5
       
+
       
include "alldifferent.mzn";

     

       
6
       
6
       
+
       


     

       
7
       
7
       
+
       
constraint alldifferent(q);

     

       
8
       
8
       
+
       
constraint alldifferent(i in 1..n)(q[i] + i);

     

       
9
       
9
       
+
       
constraint alldifferent(i in 1..n)(q[i] - i);