From 6209bb85565dcb2a87b67bc7cde82f41d5c4f860 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Mon, 16 Dec 2013 21:21:31 +0100
Subject: [PATCH] pkgs/build-support/cabal: add 'buildTarget' attribute to
 allow passing flags to "./Setup build"

---
 pkgs/build-support/cabal/default.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/build-support/cabal/default.nix b/pkgs/build-support/cabal/default.nix
index 2898b14a12f..bf956f6e553 100644
--- a/pkgs/build-support/cabal/default.nix
+++ b/pkgs/build-support/cabal/default.nix
@@ -108,6 +108,9 @@ assert !enableStaticLibraries -> versionOlder "7.7" ghc.version;
             # build-depends Cabal field
             buildDepends = [];
 
+            # target(s) passed to the cabal build phase as an argument
+            buildTarget = "";
+
             # build-depends Cabal fields stated in test-suite stanzas
             testDepends = [];
 
@@ -208,7 +211,7 @@ assert !enableStaticLibraries -> versionOlder "7.7" ghc.version;
             buildPhase = ''
               eval "$preBuild"
 
-              ./Setup build
+              ./Setup build ${self.buildTarget}
 
               export GHC_PACKAGE_PATH=$(${ghc.GHCPackages})
               test -n "$noHaddock" || ./Setup haddock