From 31e34fcf932e86c398a38b39facc268026736f0c Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Sun, 15 Apr 2012 00:20:32 +0200
Subject: [PATCH] Close almost all file descriptors in the builder

This regression was accidentally introduced in
35355fc1fcffbe859395e360c0a6a1463f137d63.
---
 src/libstore/build.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index c13ea6d23d..77e968ddd0 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -1793,6 +1793,9 @@ void DerivationGoal::startBuilder()
             if (chdir(tmpDir.c_str()) == -1)
                 throw SysError(format("changing into `%1%'") % tmpDir);
 
+            /* Close all other file descriptors. */
+            closeMostFDs(set<int>());
+
 #ifdef CAN_DO_LINUX32_BUILDS
             /* Change the personality to 32-bit if we're doing an
                i686-linux build on an x86_64-linux machine. */