From 739a03393c86bb310954a6769ae4835c189d0f24 Mon Sep 17 00:00:00 2001
From: Rob Vermaas <rob.vermaas@gmail.com>
Date: Thu, 16 Feb 2012 11:03:22 +0100
Subject: [PATCH] allow null values for jobs, meaning it should build

---
 src/c/hydra-eval-jobs.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/c/hydra-eval-jobs.cc b/src/c/hydra-eval-jobs.cc
index 7c10988d..7f79a513 100644
--- a/src/c/hydra-eval-jobs.cc
+++ b/src/c/hydra-eval-jobs.cc
@@ -178,6 +178,10 @@ static void findJobsWrapped(EvalState & state, XMLWriter & doc,
             Bindings());
     }
 
+    else if (v.type = tNull) {
+        // allow null values, meaning 'do nothing'
+    }
+
     else
         throw TypeError(format("unsupported value: %1%") % v);
 }