git.diff

diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 4fb510efed0..426b012b091 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -324,10 +324,10 @@ self: super: {
   matplotlib = dontCheck super.matplotlib;

   # Needs the latest version of vty and brick.
-  matterhorn = super.matterhorn.overrideScope (self: super: {
+  matterhorn = doJailbreak (super.matterhorn.overrideScope (self: super: {
     brick = self.brick_0_57;
     vty = self.vty_5_31;
-  });
+  }));

   memcache = dontCheck super.memcache;
   metrics = dontCheck super.metrics;
@@ -510,6 +510,20 @@ self: super: {
   # Waiting on https://github.com/RaphaelJ/friday/pull/36
   friday = doJailbreak super.friday;

+  glirc = super.glirc.override {
+    random = self.random_1_2_0;
+  };
+
+  random_1_2_0 = (super.random_1_2_0.overrideScope(self: super: {
+    smallcheck = self.smallcheck_1_2_0;
+  })).override({
+    splitmix = self.splitmix_0_1_0_1;
+  });
+
+  QuickCheck_2_14_1 = super.QuickCheck_2_14_1.override( {
+    splitmix = self.splitmix_0_1_0_1;
+  });
+
   # Won't compile with recent versions of QuickCheck.
   inilist = dontCheck super.inilist;