From d7aacca73fc3b4604cce1f5000d5bda4edfb67ea Mon Sep 17 00:00:00 2001
From: Oliver Hamlet <oliver.hamlet@gmail.com>
Date: Sat, 13 Aug 2016 12:24:59 +0100
Subject: [PATCH] Remove an existing Boost folder when extracting

---
 scripts/appveyor/install_boost.ps1 | 2 ++
 scripts/travis/install_boost.sh    | 1 +
 2 files changed, 3 insertions(+)

diff --git a/scripts/appveyor/install_boost.ps1 b/scripts/appveyor/install_boost.ps1
index 9f67773c..586bf6d1 100644
--- a/scripts/appveyor/install_boost.ps1
+++ b/scripts/appveyor/install_boost.ps1
@@ -36,6 +36,8 @@ if (Is-LibraryMissing) {
 
   Write-Output "Time taken: $((Get-Date).Subtract($start_time).Seconds) second(s)"
 
+  Remove-Item -Recurse -Force $boostFolder
+
   Write-Output 'Extracting ' + $boostArchive + '...'
   cd
   7z x $boostArchive -o"C:\projects"
diff --git a/scripts/travis/install_boost.sh b/scripts/travis/install_boost.sh
index 6d049a01..34ce8820 100644
--- a/scripts/travis/install_boost.sh
+++ b/scripts/travis/install_boost.sh
@@ -17,6 +17,7 @@ if isLibraryMissing; then
   cd ~
 
   wget https://downloads.sourceforge.net/project/boost/boost/1.61.0/${BOOST_BASENAME}.tar.bz2
+  rm -rf $BOOST_BASENAME
   tar xf ${BOOST_BASENAME}.tar.bz2
 
   cd $BOOST_BASENAME