From e50802323c3ae38ef7ecce2d438c365bde6c6b0e Mon Sep 17 00:00:00 2001
From: Ryan Trinkle <ryan.trinkle@gmail.com>
Date: Fri, 2 Jan 2015 14:19:17 -0500
Subject: [PATCH] Work around issues that appear when compiling the 'split' and
 'dependent-map' packages with ghcjs

---
 pkgs/top-level/haskell-defaults.nix | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index 9851a0fcdf3..2c97feca6c0 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -303,6 +303,24 @@
         unix = null;
         unorderedContainers = null;
         vector = null;
+
+        # GHCJS-specific workarounds
+        split = super.split.override {
+          cabal = self.cabal.override {
+            extension = self: super: {
+              doCheck = false; # Under ghcjs, the tests hang
+            };
+          };
+        };
+        dependentMap = super.dependentMap.override {
+          cabal = self.cabal.override {
+            extension = self: super: {
+              preConfigure = ''
+                sed -i 's/^.*ghc-options:.*$//' *.cabal
+              ''; # Without this, we get "target ‘base’ is not a module name or a source file"
+            };
+          };
+        };
       };
     };