Added chipmunk 2 physics library

svn path=/nixpkgs/trunk/; revision=13519

pkgs/development/libraries/chipmunk/default.nix

@@ -0,0 +1,38 @@
+args :  
+let 
+  lib = args.lib;
+  fetchurl = args.fetchurl;
+  FullDepEntry = args.FullDepEntry;
+
+  version = lib.getAttr ["version"] "4.1.0" args; 
+  buildInputs = with args; [
+    cmake freeglut mesa 
+    libX11 xproto inputproto libXi libXmu
+  ];
+in
+rec {
+  src = fetchurl {
+    url = "http://files.slembcke.net/chipmunk/release/Chipmunk-${version}.tgz";
+    sha256 = "0ry17lf4kdcac91bpavks2cswch3izsmmam0yhczk7rayj9cvqsh";
+  };
+
+  inherit buildInputs;
+  configureFlags = [];
+  
+  /* doConfigure should be specified separately */
+  phaseNames = ["genMakefile" "doMakeInstall" "demoInstall"];
+
+  genMakefile = FullDepEntry ''
+    cmake -D CMAKE_INSTALL_PREFIX=$out . 
+  '' ["minInit" "addInputs" "doUnpack"];
+
+  demoInstall = FullDepEntry(''
+    ensureDir $out/bin
+    cp chipmunk_demos $out/bin
+  '') ["doMakeInstall" "defEnsureDir"];
+      
+  name = "chipmunk-" + version;
+  meta = {
+    description = "Chipmunk 2D physics engine";
+  };
+}