Merge pull request #21066 from gdeest/fix/isl-update

isl: add 0.17.1

pkgs/development/libraries/isl/0.17.1.nix

@@ -0,0 +1,21 @@
+{ stdenv, fetchurl, gmp }:
+
+stdenv.mkDerivation rec {
+  name = "isl-0.17.1";
+
+  src = fetchurl {
+    url = "http://isl.gforge.inria.fr/${name}.tar.xz";
+    sha256 = "be152e5c816b477594f4c6194b5666d8129f3a27702756ae9ff60346a8731647";
+  };
+
+  buildInputs = [ gmp ];
+
+  enableParallelBuilding = true;
+
+  meta = {
+    homepage = http://www.kotnet.org/~skimo/isl/;
+    license = stdenv.lib.licenses.lgpl21;
+    description = "A library for manipulating sets and relations of integer points bounded by linear constraints";
+    platforms = stdenv.lib.platforms.all;
+  };
+}