Upgrade icu4c

svn path=/nixpkgs/trunk/; revision=23957

pkgs/development/libraries/icu/default.nix

@@ -1,25 +1,19 @@
 {stdenv, fetchurl}:
 
+let
+  pname = "icu4c";
+  version = "4.4.1";
+in
+
 stdenv.mkDerivation {
-  name = "icu4c-4.2";
+  name = pname + "-" + version;
   
   src = fetchurl {
-    url = http://download.icu-project.org/files/icu4c/4.2.1/icu4c-4_2_1-src.tgz;
-    sha256 = "0qw050msb34wr522s7s83i6skxsc9i19p4rlvmf99pqk2hgf6kc1";
+    url = "http://download.icu-project.org/files/${pname}/${version}/${pname}-"
+      + (stdenv.lib.replaceChars ["."] ["_"] version) + "-src.tgz";
+    sha256 = "0qrhf9gsj38saxfzpzvlwp1jwdsxr06npdds5dbsc86shg0lz69l";
   };
 
-  patchFlags = "-p0";
-
-  CFLAGS = "-O0";
-  CXXFLAGS = "-O0";
-
-  patches = [
-    (fetchurl {
-      url = "http://sources.gentoo.org/viewcvs.py/*checkout*/gentoo-x86/dev-libs/icu/files/icu-3.8-setBreakType-public.diff?rev=1.1";
-      sha256 = "09g39rzj3bdf2q9n47rzdlpcjyipip42swbjpb0gjzp439jv3wmk";
-    })
-  ];
-  
   postUnpack = "
     sourceRoot=\${sourceRoot}/source
     echo Source root reset to \${sourceRoot}