Merge pull request #48 from pmarreck/master

add a default.nix build file for easy builds of this on nix/nixOS

default.nix

@@ -0,0 +1,26 @@
+with import <nixpkgs> {};
+# fastStdenv.mkDerivation { # for faster running times (8-12%) BUT... nondeterministic builds :(
+stdenv.mkDerivation {
+  name = "vanitygen++";
+  src = ./.;
+
+  enableParallelBuilding = true;
+
+  nativeBuildInputs = [ pkg-config ];
+
+  buildInputs = [ gcc pcre openssl opencl-clhpp ocl-icd curl curlpp ];
+
+  buildPhase = ''
+    make all
+  '';
+
+  # for a generic copy of all compiled executables:
+  # cp $(find * -maxdepth 1 -executable -type f) $out/bin/
+  installPhase = ''
+    mkdir -p $out/bin
+    cp keyconv oclvanitygen++ oclvanityminer vanitygen++ $out/bin/
+  '';
+}
+# to run this on nix/nixos, just run `nix-build` in the directory containing this file
+# and then run any executable in the result/bin directory
+# e.g. `./result/bin/vanitygen++ -h`