Author: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Description: Exit immediately if a command exits with a non-zero status.

--- a/scripts/buildutil.sh
+++ b/scripts/buildutil.sh
@@ -5,6 +5,7 @@
 # @author Marcelo C. de Freitas
 
 
+set -e
 
 
 ######################
--- a/scripts/clean.sh
+++ b/scripts/clean.sh
@@ -3,6 +3,7 @@
 
 source scripts/buildutil.sh
 
+set +e
 
 load_configuration