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haskell-transformers-compat: provide different versions for GHC 7.8.2 and below
transformers is a core library in GHC 7.8.2, so that compiler is stuck with an older version of the -compat library.
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development/libraries/haskell/transformers-compat
top-level
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@ -0,0 +1,14 @@
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{ cabal, transformers }:
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cabal.mkDerivation (self: {
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pname = "transformers-compat";
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version = "0.3.3";
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sha256 = "14lmwqr6q79k1f7byvb0jcm4r7lprhxkl85z72pr6ghn7bsvqwps";
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buildDepends = [ transformers ];
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meta = {
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homepage = "http://github.com/ekmett/transformers-compat/";
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description = "A small compatibility shim exposing the new types from transformers 0.3 and 0.4 to older Haskell platforms.";
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license = self.stdenv.lib.licenses.bsd3;
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platforms = self.ghc.meta.platforms;
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};
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})
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@ -17,6 +17,7 @@
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ghcHEADPrefs = self : super : super // {
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mtl = self.mtl_2_1_2;
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cabalInstall_1_20_0_2 = super.cabalInstall_1_20_0_2.override { Cabal = null; };
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transformersCompat = super.transformersCompat_0_3_3;
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};
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ghc782Prefs = self : super : ghcHEADPrefs self super // {
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@ -44,6 +45,7 @@
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mtl = self.mtl_2_2_1;
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pipesBinary = super.pipesBinary.override { binary = self.binary_0_7_2_1; };
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transformers = self.transformers_0_4_1_0; # core packagen in ghc > 7.6.x
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transformersCompat = super.transformersCompat;
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zipArchive = super.zipArchive_0_2_2_1; # works without binary 0.7.x
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};
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@ -2269,7 +2269,9 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
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transformersBase = callPackage ../development/libraries/haskell/transformers-base {};
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transformersCompat = callPackage ../development/libraries/haskell/transformers-compat {};
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transformersCompat_0_3_3 = callPackage ../development/libraries/haskell/transformers-compat/0.3.3.nix {};
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transformersCompat_0_3_3_4 = callPackage ../development/libraries/haskell/transformers-compat/0.3.3.4.nix {};
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transformersCompat = self.transformersCompat_0_3_3_4;
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transformersFree = callPackage ../development/libraries/haskell/transformers-free {};
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