irrlicht: update rev 3843 (1.8) -> rev 5104 (1.8); fixed awkward naming; use svn release branch

pkgs/development/libraries/irrlicht/default.nix

@@ -2,21 +2,16 @@
 
 
 stdenv.mkDerivation rec {
-  # Version 3843 is required for supertuxkart
-  name = "irrlicht-1.8-svn-3843";
+  name = "irrlicht-${version}-svn-${revision}";
+  version = "1.8";
+  revision = "5104"; # newest revision as of 05-16-15
 
   src = fetchsvn {
-    url = https://irrlicht.svn.sourceforge.net/svnroot/irrlicht/trunk;
-    rev = 3843;
-    sha256 = "0v31l3k0fzy7isdsx2sh0baaixzlml1m7vgz6cd0015d9f5n99vl";
+    url = "https://svn.code.sf.net/p/irrlicht/code/branches/releases/${version}"; # get 1.8 release (same regardless of rev)
+    rev = "${revision}";
+    sha256 = "18xvlrjf113mphf29iy24hmrkh7xff6j9cz0chrxjqbr9xk9h1yq";
   };
 
-  patches = [ ./irrlicht-1.8.1-mesa-10.x.patch ];
-
-  postPatch = ''
-    sed -i /stdcall-alias/d source/Irrlicht/Makefile
-  '';
-
   preConfigure = ''
     cd source/Irrlicht
   '';
@@ -30,11 +25,6 @@ stdenv.mkDerivation rec {
     mkdir -p $out/lib
   '';
 
-  postInstall = ''
-    ln -s libIrrlicht.so.1.8.0-SVN $out/lib/libIrrlicht.so.1.8
-    ln -s libIrrlicht.so.1.8.0-SVN $out/lib/libIrrlicht.so
-  '';
-
   buildInputs = [ unzip mesa libXrandr libX11 libXxf86vm ];
 
   meta = {