1 files changed, 70 insertions, 0 deletions
diff --git a/pkgs/development/libraries/physics/geant4/g4py/default.nix b/pkgs/development/libraries/physics/geant4/g4py/default.nix
new file mode 100644
index 00000000000..f90b2e6c4ae
--- /dev/null
+++ b/pkgs/development/libraries/physics/geant4/g4py/default.nix
@@ -0,0 +1,70 @@
+{ stdenv, fetchurl
+
+# The target version of Geant4
+, geant4
+
+# Python (obviously) and boost::python for wrapping.
+, python
+, boost
+}:
+
+let
+  buildG4py = 
+    { version, src, geant4}:
+
+    stdenv.mkDerivation rec {
+      inherit version src geant4;
+      name = "g4py-${version}";
+
+      # ./configure overwrites $PATH, which clobbers everything.
+      patches = [ ./configure.patch ];
+      patchFlags = "-p0";
+
+      configurePhase = ''
+        export PYTHONPATH=$PYTHONPATH:${geant4}/lib64:$prefix
+
+        source ${geant4}/share/Geant4-*/geant4make/geant4make.sh
+        cd environments/g4py
+
+        ./configure linux64 --prefix=$prefix \
+                            --with-g4install-dir=${geant4} \
+                            --with-python-incdir=${python}/include/python${python.majorVersion} \
+                            --with-python-libdir=${python}/lib \
+                            --with-boost-incdir=${boost}/include \
+                            --with-boost-libdir=${boost}/lib
+      '';
+
+      enableParallelBuilding = true;
+      buildInputs = [ geant4 boost python ];
+
+      setupHook = ./setup-hook.sh;
+
+      # Make sure we set PYTHONPATH
+      shellHook = ''
+        source $out/nix-support/setup-hook
+      '';
+
+      meta = {
+        description = "Python bindings and utilities for Geant4.";
+        longDescription = ''
+          Geant4 is a toolkit for the simulation of the passage of particles through matter.      
+          Its areas of application include high energy, nuclear and accelerator physics, as well as studies in medical and space science.
+          The two main reference papers for Geant4 are published in Nuclear Instruments and Methods in Physics Research A 506 (2003) 250-303, and IEEE Transactions on Nuclear Science 53 No. 1 (2006) 270-278.
+        '';
+        homepage = http://www.geant4.org;
+        license = stdenv.lib.licenses.g4sl;
+        maintainers = [ ];
+        platforms = stdenv.lib.platforms.all;
+      }; 
+    };
+
+    fetchGeant4 = import ../fetch.nix {
+      inherit stdenv fetchurl;
+    };  
+
+in {
+  v10_0_2 = buildG4py {
+    inherit (fetchGeant4.v10_0_2) version src;
+    geant4 = geant4.v10_0_2;
+  };  
+}