Nix integration

ns3-simulations/nix/ns3/default.nix

@@ -0,0 +1,36 @@
+{ stdenv, fetchurl, python, gsl }:
+
+stdenv.mkDerivation rec {
+  ##### Configure NIX #####
+  name="ns3";
+  sourceRoot="ns-allinone-3.29/ns-3.29/"; # Since we have 2 source tarball (ns-3 & ECOFEN) nix need to know which one to use
+
+  ##### Fetch ns-3 And ECOFEN #####
+  src = [
+      (fetchurl {
+      url = https://www.nsnam.org/releases/ns-allinone-3.29.tar.bz2;
+      sha256 = "0m9dpmby116qk1m4x645i1p92syn30yzn9dgxxji5i25g30abpsd";
+      })
+      
+      (fetchurl {
+      url = http://people.irisa.fr/Anne-Cecile.Orgerie/ECOFEN/ecofen-v2.tar.bz2;
+      sha256 = "1dnmm20ihas6hwwb8qbx8sr3h66nrg8h55x6f2aqpf3xima29dyh";
+      })
+  ];
+
+  ##### Configure Dependencies #####
+  buildInputs= [ python gsl ];
+
+  ##### Configure Phases #####
+  postUnpack=''mv ecofen-module-v2 ${sourceRoot}/contrib/ecofen'';
+  configurePhase=''
+  export CXXFLAGS="-Wall -g -O0" # Don't treat warning as error when compiling ns-3
+  python2 waf configure
+  '';
+  buildPhase=''python2 waf'';
+  installPhase=''
+  mkdir -p $out/include
+  cp -r ./build/lib $out/
+  cp -r ./build/ns3 $out/include
+  '';
+}