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-rw-r--r--pkgs/development/tools/parsing/happy/1.18.5.nix20
1 files changed, 14 insertions, 6 deletions
diff --git a/pkgs/development/tools/parsing/happy/1.18.5.nix b/pkgs/development/tools/parsing/happy/1.18.5.nix
index c3cd406f127bc..41532651c9950 100644
--- a/pkgs/development/tools/parsing/happy/1.18.5.nix
+++ b/pkgs/development/tools/parsing/happy/1.18.5.nix
@@ -1,13 +1,21 @@
-{cabal, mtl, perl}:
+{ cabal, mtl, perl }:
 
-cabal.mkDerivation (self : {
+cabal.mkDerivation (self: {
   pname = "happy";
-  version = "1.18.5"; # Haskell Platform 2010.2.0.0
-  name = self.fname;
+  version = "1.18.5";
   sha256 = "91e1c29ac42bc5cabcac2c2e28e693fc59fbdf30636e5c52cb51b779a74d755e";
-  extraBuildInputs = [perl];
-  propagatedBuildInputs = [mtl];
+  isLibrary = false;
+  isExecutable = true;
+  buildDepends = [ mtl ];
+  buildTools = [ perl ];
   meta = {
+    homepage = "http://www.haskell.org/happy/";
     description = "Happy is a parser generator for Haskell";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [
+      self.stdenv.lib.maintainers.andres
+      self.stdenv.lib.maintainers.simons
+    ];
   };
 })