* small fix for the generic Cabal builder

* added Crypto and pcre-light packages

svn path=/nixpkgs/trunk/; revision=10250

pkgs/development/libraries/haskell/Crypto/default.nix

@@ -0,0 +1,11 @@
+{cabal}:
+
+cabal.mkDerivation (self : {
+  pname = "Crypto";
+  version = "4.1.0";
+  sha256 = "0984c833c5dfa6f4d56fd6fb284db7b7cef6676dc7999a1436aa856becba2b8f";
+  meta = {
+    description = "Several encryption algorithms for Haskell";
+  };
+})  
+

pkgs/development/libraries/haskell/cabal/cabal.nix

@@ -53,7 +53,7 @@ attrs :
               for i in Setup.hs Setup.lhs; do
                 test -f $i && ghc --make $i
               done
-              ./Setup configure --prefix="$out"
+              ./Setup configure --verbose --prefix="$out"
 
               eval "$postConfigure"
             '';
@@ -78,11 +78,11 @@ attrs :
 
               ./Setup copy
               ./Setup register --gen-script
-              mkdir $out/nix-support
+              mkdir -p $out/nix-support
               sed -i 's/|.*\(ghc-pkg update\)/| \1/' register.sh
               cp register.sh $out/nix-support/register-ghclib.sh
               sed -i 's/\(ghc-pkg update\)/\1 --user/' register.sh
-              mkdir $out/bin
+              mkdir -p $out/bin
               cp register.sh $out/bin/register-${self.name}.sh
 
               eval "$postInstall"

pkgs/development/libraries/haskell/pcre-light/default.nix

@@ -0,0 +1,12 @@
+{cabal, pcre}:
+
+cabal.mkDerivation (self : {
+  pname = "pcre-light";
+  version = "0.3";
+  sha256 = "a8cfec1c265530388efbb187426368e280331d9829fa93d8f49f16db3c3e7794";
+  propagatedBuildInputs = [pcre];
+  meta = {
+    description = "A small, efficient and portable regex library for Perl 5 compatible regular expressions";
+  };
+})  
+