* converted happy and haddock to use generic Cabal builder

svn path=/nixpkgs/trunk/; revision=10252

pkgs/development/tools/documentation/haddock/default.nix

@@ -1,25 +1,11 @@
-{stdenv, fetchurl, ghc}:
+{cabal}:
 
-stdenv.mkDerivation (rec {
+cabal.mkDerivation (self : {
   pname = "haddock";
   version = "2.0.0.0";
-  name = "${pname}-${version}";
-  src = fetchurl {
-    url = "http://hackage.haskell.org/packages/archive/${pname}/${version}/${name}.tar.gz";
-    sha256 = "a2ea5bdc127bc8b189a8d869f582ec774fea0933e7f5ca89549a6c142b9993df";
+  name = self.fname;
+  sha256 = "a2ea5bdc127bc8b189a8d869f582ec774fea0933e7f5ca89549a6c142b9993df";
+  meta = {
+    description = "a tool for automatically generating documentation from annotated Haskell source code";
   };
-  buildInputs = [ghc];
-
-  configurePhase = '' 
-    ghc --make Setup.lhs
-    ./Setup configure -v --prefix="$out"
-  '';
-
-  buildPhase = ''
-    ./Setup build
-  '';
-
-  installPhase = ''
-    ./Setup install
-  '';
 })

pkgs/development/tools/parsing/happy/happy-1.17.nix

@@ -1,28 +1,12 @@
-{stdenv, fetchurl, perl, ghc}:
+{cabal, perl}:
 
-stdenv.mkDerivation (rec {
+cabal.mkDerivation (self : {
 
   # requires cabal-1.2 (and therefore, in Nix, currently ghc-6.8)
 
   pname = "happy";
   version = "1.17";
-  name = "${pname}-${version}";
-  src = fetchurl {
-    url = "http://www.haskell.org/happy/dist/${version}/${name}.tar.gz";
-    sha256 = "dca4e47d17e5d538335496236b3d2c3cbff644cf7380c987a4714e7784c70a2b";
-  };
-  buildInputs = [ghc perl];
-
-  configurePhase = "
-    ghc --make Setup.lhs
-    ./Setup configure --prefix=\"\${out}\"
-  ";
-
-  buildPhase = "
-    ./Setup build
-  ";
-
-  installPhase = "
-    ./Setup install
-  ";
+  name = self.fname;
+  sha256 = "dca4e47d17e5d538335496236b3d2c3cbff644cf7380c987a4714e7784c70a2b";
+  extraBuildInputs = [perl];
 })