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-rw-r--r--pkgs/development/haskell-modules/configuration-ghc-7.4.x.nix3
-rw-r--r--pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix3
2 files changed, 6 insertions, 0 deletions
diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.4.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.4.x.nix
index 88fa300e2e7f..2bad8d8b97d1 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.4.x.nix
@@ -40,6 +40,9 @@ self: super: {
   # https://github.com/haskell/cabal/issues/2322
   Cabal_1_22_3_0 = super.Cabal_1_22_3_0.override { binary = self.binary_0_7_4_0; };
 
+  # Avoid inconsistent 'binary' versions from 'text' and 'Cabal'.
+  cabal-install = super.cabal-install.overrideScope (self: super: { binary = self.binary_0_7_4_0; });
+
   # https://github.com/tibbe/hashable/issues/85
   hashable = dontCheck super.hashable;
 
diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix
index 2ee401054398..a90c5f99173a 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.6.x.nix
@@ -42,6 +42,9 @@ self: super: {
   # https://github.com/haskell/cabal/issues/2322
   Cabal_1_22_3_0 = super.Cabal_1_22_3_0.override { binary = self.binary_0_7_4_0; };
 
+  # Avoid inconsistent 'binary' versions from 'text' and 'Cabal'.
+  cabal-install = super.cabal-install.overrideScope (self: super: { binary = self.binary_0_7_4_0; });
+
   # https://github.com/tibbe/hashable/issues/85
   hashable = dontCheck super.hashable;