Skip collecting optimization flag

Author: Jason2866

tools/copy-libs.sh

@@ -92,6 +92,8 @@ for item in "${@:2:${#@}-5}"; do
 		if [[ "${item:2:7}" != "ARDUINO" ]] && [[ "$item" != "-DESP32" ]]; then #skip ARDUINO defines
 			DEFINES+="$item "
 		fi
+	elif [ "$prefix" = "-O" ]; then
+		PIO_CC_FLAGS+="$item "
 	elif [[ "$item" != "-Wall" && "$item" != "-Werror=all"  && "$item" != "-Wextra" ]]; then
 		if [[ "${item:0:23}" != "-mfix-esp32-psram-cache" && "${item:0:18}" != "-fmacro-prefix-map" ]]; then
 			C_FLAGS+="$item "
@@ -106,7 +108,7 @@ str=`printf '%b' "$str"` #unescape the string
 set -- $str
 for item in "${@:2:${#@}-5}"; do
 	prefix="${item:0:2}"
-	if [[ "$prefix" != "-I" && "$prefix" != "-D" && "$item" != "-Wall" && "$item" != "-Werror=all"  && "$item" != "-Wextra" ]]; then
+	if [[ "$prefix" != "-I" && "$prefix" != "-D" && "$item" != "-Wall" && "$item" != "-Werror=all"  && "$item" != "-Wextra" && "$prefix" != "-O" ]]; then
 		if [[ "${item:0:23}" != "-mfix-esp32-psram-cache" && "${item:0:18}" != "-fmacro-prefix-map" ]]; then
 			AS_FLAGS+="$item "
 			if [[ $C_FLAGS == *"$item"* ]]; then
@@ -125,7 +127,7 @@ str=`printf '%b' "$str"` #unescape the string
 set -- $str
 for item in "${@:2:${#@}-5}"; do
 	prefix="${item:0:2}"
-	if [[ "$prefix" != "-I" && "$prefix" != "-D" && "$item" != "-Wall" && "$item" != "-Werror=all"  && "$item" != "-Wextra" ]]; then
+	if [[ "$prefix" != "-I" && "$prefix" != "-D" && "$item" != "-Wall" && "$item" != "-Werror=all"  && "$item" != "-Wextra" && "$prefix" != "-O" ]]; then
 		if [[ "${item:0:23}" != "-mfix-esp32-psram-cache" && "${item:0:18}" != "-fmacro-prefix-map" ]]; then
 			CPP_FLAGS+="$item "
 			if [[ $PIO_CC_FLAGS != *"$item"* ]]; then