diff --git a/master.sh b/master.sh
index 69a74a2..c85a20d 100755
--- a/master.sh
+++ b/master.sh
@@ -481,6 +481,9 @@ if [[ "$OPTIMIZE" != "0" ]]; then
 fi
 #
 
+# Validate optimize settings, if required
+[[ "$OPTIMIZE" != "0" ]] && validate_opt_settings
+
 # Prevents setting "-d /" by mistake.
 
 if [ $BUILDDIR = / ] ; then
diff --git a/optimize/optimize_functions b/optimize/optimize_functions
index cffa3dc..3448e77 100644
--- a/optimize/optimize_functions
+++ b/optimize/optimize_functions
@@ -5,6 +5,33 @@
 set +e
 
 
+#----------------------------------#
+validate_opt_settings() {          # Show optimize setting and wait user agreement
+#----------------------------------#
+  local OPT_VAR optVal
+  local -r PARAM_VALS='${config_param}: ${L_arrow}${BOLD}${!config_param}${OFF}${R_arrow}'
+
+  echo -e "MAKEFLAGS: ${L_arrow}${BOLD}${MAKEFLAGS}${OFF}${R_arrow}\n"
+  echo -e "DEF_OPT_LVL: ${L_arrow}${BOLD}${DEF_OPT_LVL}${OFF}${R_arrow}\n"
+
+  for OPT_VAR in $ACTIVE_OPT_VARS ; do
+    eval optVal=\$${OPT_VAR}_${DEF_OPT_LVL}
+    echo -e "${OPT_VAR}: ${L_arrow}${BOLD}${optVal}${OFF}${R_arrow}"
+  done
+
+  echo -e "\nOverrided packages:"
+  cat optimize/opt_override
+  echo "${nl_}${SD_BORDER}${nl_}"
+
+  echo -n "Are you happy with these optimization settings? yes/no (no): "
+  read ANSWER
+  if [ x$ANSWER != "xyes" ] ; then
+    echo "${nl_}Fix the optimization options and rerun the script.${nl_}"
+    exit 1
+  fi
+  echo "${nl_}${SD_BORDER}${nl_}"
+}
+
 #----------------------------------#
 wrt_optimize() {                   # Apply pkg specific opt's to build
 #----------------------------------#