1 files changed, 16 insertions, 13 deletions
diff --git a/pkgs/development/haskell-modules/make-package-set.nix b/pkgs/development/haskell-modules/make-package-set.nix
index 45cc37117883..b6fe399058c3 100644
--- a/pkgs/development/haskell-modules/make-package-set.nix
+++ b/pkgs/development/haskell-modules/make-package-set.nix
@@ -176,19 +176,22 @@ in package-set { inherit pkgs stdenv callPackage; } self // {
     callHackage = name: version: callPackageKeepDeriver (self.hackage2nix name version);
 
     # Creates a Haskell package from a source package by calling cabal2nix on the source.
-    callCabal2nix = name: src: args: let
-      filter = path: type:
-                 pkgs.lib.hasSuffix "${name}.cabal" path ||
-                 baseNameOf path == "package.yaml";
-      expr = self.haskellSrc2nix {
-        inherit name;
-        src = if pkgs.lib.canCleanSource src
-                then pkgs.lib.cleanSourceWith { inherit src filter; }
-              else src;
-      };
-    in overrideCabal (callPackageKeepDeriver expr args) (orig: {
-         inherit src;
-       });
+    callCabal2nixWithOptions = name: src: extraCabal2nixOptions: args:
+      let
+        filter = path: type:
+                   pkgs.lib.hasSuffix "${name}.cabal" path ||
+                   baseNameOf path == "package.yaml";
+        expr = self.haskellSrc2nix {
+          inherit name extraCabal2nixOptions;
+          src = if pkgs.lib.canCleanSource src
+                  then pkgs.lib.cleanSourceWith { inherit src filter; }
+                else src;
+        };
+      in overrideCabal (callPackageKeepDeriver expr args) (orig: {
+           inherit src;
+         });
+
+    callCabal2nix = name: src: args: self.callCabal2nixWithOptions name src "" args;
 
     # : { root : Path
     #   , source-overrides : Defaulted (Either Path VersionNumber)