3 files changed, 18 insertions, 7 deletions
diff --git a/pkgs/tools/misc/bc/default.nix b/pkgs/tools/misc/bc/default.nix
index b8c3657bb64..2d3d70d5ead 100644
--- a/pkgs/tools/misc/bc/default.nix
+++ b/pkgs/tools/misc/bc/default.nix
@@ -1,20 +1,23 @@
 {stdenv, fetchurl, flex, readline}:
 
-stdenv.mkDerivation {
-  name = "bc-1.0.6";
+stdenv.mkDerivation rec {
+  name = "bc-1.06";
   src = fetchurl {
-    url = mirror://gnu/bc/bc-1.06.tar.gz;
-    md5 = "d44b5dddebd8a7a7309aea6c36fda117";
+    url = "mirror://gnu/bc/${name}.tar.gz";
+    sha256 = "0cqf5jkwx6awgd2xc2a0mkpxilzcfmhncdcfg7c9439wgkqxkxjf";
   };
 
   patches = [ ./readlinefix.patch ];
 
-  configureFlags = "--with-readline";
+  configureFlags = [ "--with-readline" ];
 
   buildInputs = [flex readline];
 
+  doCheck = true;
+
   meta = {
     description = "GNU software calculator";
     homepage = http://www.gnu.org/software/bc/;
+    platforms = stdenv.lib.platforms.all;
   };
 }
diff --git a/pkgs/tools/misc/parallel/default.nix b/pkgs/tools/misc/parallel/default.nix
index 7b60bc3f583..05c1ffaa965 100644
--- a/pkgs/tools/misc/parallel/default.nix
+++ b/pkgs/tools/misc/parallel/default.nix
@@ -1,11 +1,11 @@
 { fetchurl, stdenv, perl }:
 
 stdenv.mkDerivation rec {
-  name = "parallel-20100906";
+  name = "parallel-20100922";
 
   src = fetchurl {
     url = "mirror://gnu/parallel/${name}.tar.bz2";
-    sha256 = "1h27ffq0hk2dlnffsk377lpp65l2zmvija7r831lpvdfssklmxvw";
+    sha256 = "0bn1pka242pgm5dm0wkd4zf63rwv0wxxb0fjdjivlxyid72r7g8d";
   };
 
   patchPhase =
diff --git a/pkgs/tools/misc/screen/default.nix b/pkgs/tools/misc/screen/default.nix
index 39e763c4ca7..f31a28c221a 100644
--- a/pkgs/tools/misc/screen/default.nix
+++ b/pkgs/tools/misc/screen/default.nix
@@ -8,4 +8,12 @@ stdenv.mkDerivation {
   };
 
   buildInputs = [ncurses];
+
+  meta = {
+    homepage = "http://www.gnu.org/software/screen/";
+    description = "Full-screen window manager that multiplexes a physical terminal";
+
+    platforms = stdenv.lib.platforms.unix;
+    maintainers = [];
+  };
 }