From 6675f0a52c0962042a1000c7f20e887d0d26ae25 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Llu=C3=ADs=20Batlle=20i=20Rossell?=
 <viric@vicerveza.homeunix.net>
Date: Sun, 8 Nov 2009 22:50:27 +0000
Subject: [PATCH] Adding a check in the generic builder so it halts on the
 existence of /homeless-shelter

svn path=/nixpkgs/branches/stdenv-updates/; revision=18302
---
 pkgs/stdenv/generic/setup.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/stdenv/generic/setup.sh b/pkgs/stdenv/generic/setup.sh
index cadfeadc6db..9f9d64df8e4 100644
--- a/pkgs/stdenv/generic/setup.sh
+++ b/pkgs/stdenv/generic/setup.sh
@@ -78,6 +78,10 @@ addToSearchPath() {
 
 set -e
 
+# Check that the directory pointed by HOME, usually '/homeless-shelter',
+# does not exist, as it may be a good source for impurities.
+! test -e $HOME
+
 test -z $NIX_GCC && NIX_GCC=@gcc@