introduce subshells to limit side-effects

1 files changed, 3 insertions, 2 deletions

diff --git a/install b/install
index 71fad2b6ab5c..a9e81261b1ef 100755
--- a/install
+++ b/install
@@ -1,7 +1,8 @@
 #!/bin/bash
 
-build () {
+build () { (
 
+  
   set -e
   set -u
 
@@ -90,7 +91,7 @@ build () {
 
   rm "$AUTH_PUB_KEY_FILE"
   rm -rf "$TMP"
-}
+) }
 
 help () {
   cat <<HELPEOF