From 278df52729bebf4e0c8f91b06eb3545019bebe58 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Fri, 15 May 2015 13:47:27 +0200
Subject: [PATCH] r-xml2: fix build

---
 pkgs/development/r-modules/default.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index e0b19f465c98..02ae731bc544 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -950,6 +950,13 @@ let
   ];
 
   otherOverrides = old: new: {
+    xml2 = old.xml2.overrideDerivation (attrs: {
+      preConfigure = ''
+        export LIBXML_INCDIR=${pkgs.libxml2}/include/libxml2
+        export LIBXML_LIBDIR=${pkgs.libxml2}/lib
+      '';
+    });
+
     curl = old.curl.overrideDerivation (attrs: {
       preConfigure = "export CURL_INCLUDES=${pkgs.curl}/include/curl";
     });