From 7dc4faa97ed2021981c69551d2af9a68787e867d Mon Sep 17 00:00:00 2001
From: Kenneth Heafield <github@kheafield.com>
Date: Tue, 19 Mar 2013 11:17:17 +0000
Subject: [PATCH] Fix cd error when running bjam from non-top

---
 bjam | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/bjam b/bjam
index d0d94dedb..0ebf105c3 100755
--- a/bjam
+++ b/bjam
@@ -1,17 +1,17 @@
 #!/bin/bash
 set -e
+top="$(dirname "$0")"
 if
   bjam="$(which bjam 2>/dev/null)" && #exists
   [ ${#bjam} != 0 ] && #paranoia about which printing nothing then returning true
   ! grep UFIHGUFIHBDJKNCFZXAEVA "${bjam}" </dev/null >/dev/null && #bjam in path isn't this script
   "${bjam}" --sanity-test 2>/dev/null |grep Sane >/dev/null && #The test in jam-files/sanity.jam passes
-  (cd jam-files/fail && ! "${bjam}") >/dev/null #Returns non-zero on failure
+  (cd "${top}/jam-files/fail" && ! "${bjam}") >/dev/null #Returns non-zero on failure
 then
   #Delegate to system bjam
   exec "${bjam}" "$@"
 fi
 
-top="$(dirname "$0")"
 if [ ! -x "$top"/jam-files/bjam ] || "$top"/jam-files/bjam -v |grep 2011.4 >/dev/null; then
   pushd "$top/jam-files/engine"
   ./build.sh