From b224ac15201c57b40ea855f5a98b1bd166c1c7f6 Mon Sep 17 00:00:00 2001
From: Joel Taylor <me@joelt.io>
Date: Thu, 21 Aug 2014 14:06:49 -0700
Subject: [PATCH] fix disappearing bash arguments

---
 src/libstore/build.cc | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index b64c32d10..c547a5cbf 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -2133,8 +2133,13 @@ void DerivationGoal::initChild()
         /* Fill in the arguments. */
         string builderBasename = baseNameOf(drv.builder);
         args.push_back(builderBasename.c_str());
-        foreach (Strings::iterator, i, drv.args)
-            args.push_back(rewriteHashes(*i, rewritesToTmp).c_str());
+        foreach (Strings::iterator, i, drv.args) {
+            auto re = rewriteHashes(*i, rewritesToTmp);
+            auto cstr = new char[re.length()+1];
+            std::strcpy(cstr, re.c_str());
+
+            args.push_back(cstr);
+        }
         args.push_back(0);
 
         restoreSIGPIPE();