changes.patch

[clever@amd-nixos:~/apps/nixpkgs/pkgs/top-level]$ git diff haskell-packages.nix
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 2f21d2a5d7..2d8866bd0e 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -59,12 +59,12 @@ in rec {
       inherit (bootPkgs) hscolour;
     };
     ghc801 = callPackage ../development/compilers/ghc/8.0.1.nix rec {
-      bootPkgs = packages.ghc7103;
+      bootPkgs = packages.ghc784;
       inherit (bootPkgs) hscolour;
       sphinx = pkgs.python27Packages.sphinx;
     };
     ghc802 = callPackage ../development/compilers/ghc/8.0.2.nix rec {
-      bootPkgs = packages.ghc7103;
+      bootPkgs = packages.ghc784;
       inherit (bootPkgs) hscolour;
       sphinx = pkgs.python27Packages.sphinx;
     };

haskell deps.md

• tier 1, binary ghc's

ghc6102Binary
ghc704Binary
ghc742Binary

• tier 2

ghc6104 <- ghc6102Binary
ghc6123 <- ghc6102Binary
ghc704 <- ghc704Binary
ghc722 <- ghc704Binary
ghc742 <- ghc704Binary
ghc763 <- ghc704Binary
ghc783 <- ghc742Binary
ghc784 <- ghc742Binary

• tier 3

ghc7102 <- ghc784
ghc7103 <- ghc784
ghc801 <- ghc784
ghc802(needs 7.8+) <- ghc784

• tier 3

ghcHEAD(needs 7.10+) <- ghc7103