* Merged the usability branch (from trunk@4749 to branches/usability@5087).

svn path=/nixpkgs/trunk/; revision=5088

pkgs/development/compilers/blackdown/default.nix

@@ -6,4 +6,4 @@ if stdenv.system == "i686-linux"
       inherit stdenv fetchurl;
     }
   else
-    false
+    null

pkgs/development/compilers/gcc-4.0-cross/default.nix

@@ -26,4 +26,10 @@ stdenv.mkDerivation {
   buildInputs = [binutilsCross];
   inherit kernelHeadersCross binutilsCross;
   platform = cross;
+
+  meta = {
+    homepage = "http://gcc.gnu.org/";
+    license = "GPL/LGPL";
+    description = "GNU Compiler Collection, 4.0.x (cross-compiler for " + cross + ")";
+  };
 }

pkgs/development/compilers/gcc-4.0/default.nix

@@ -15,4 +15,10 @@ stdenv.mkDerivation {
   # !!! apply only if noSysDirs is set
   patches = [./no-sys-dirs.patch];
   inherit noSysDirs langC langCC langF77 profiledCompiler;
+
+  meta = {
+    homepage = "http://gcc.gnu.org/";
+    license = "GPL/LGPL";
+    description = "GNU Compiler Collection, 4.0.x";
+  };
 }