bigsort: add the shuffle program

garlic/apps/bigsort/shuffle.nix

@@ -0,0 +1,43 @@
+{
+  stdenv
+, cc
+, mpi
+}:
+
+with stdenv.lib;
+stdenv.mkDerivation rec {
+  name = "shuffle";
+
+  src = builtins.fetchGit {
+    url = "ssh://git@bscpm02.bsc.es/dalvare1/bigsort.git";
+    ref = "garlic/mpi+send+omp+task";
+  };
+
+  postUnpack = "sourceRoot=$sourceRoot/ShuffleSeq";
+
+  # FIXME: Remove the ../commons/Makefile as is not useful here, we only need
+  # the CPP_SRC and OBJ variables.
+  postPatch = ''
+    sed -i '1cCPP_SRC = $(wildcard *.cpp)' Makefile
+    sed -i '2cOBJ = $(CPP_SRC:.cpp=.o)' Makefile
+  '';
+
+  buildInputs = [
+    cc
+    mpi
+  ];
+
+  makeFlags = [
+    "I_MPI_CXX=${cc.cc.CXX}"
+    "CPP_BIN=mpicxx"
+  ];
+
+  enableParallelBuilding = true;
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp shuffle $out/bin/shuffle
+  '';
+
+  programPath = "/bin/shuffle";
+}