Update copy-libs.sh

Author: Jason2866

tools/copy-libs.sh

@@ -140,7 +140,7 @@ 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"  && "$item" != "-Wextra" && "$prefix" != "-O" ]]; then
+	if [[ "$prefix" != "-I" && "$prefix" != "-D" && "$item" != "-Wall" && "$item" != "-Werror=all"  && "$item" != "-Wextra" && "$item" != "-fno-lto" && "$prefix" != "-O" ]]; then
 		if [[ "${item:0:23}" != "-mfix-esp32-psram-cache" && "${item:0:18}" != "-fmacro-prefix-map" && "${item:0:20}" != "-fdiagnostics-color=" && "${item:0:19}" != "-fdebug-prefix-map=" ]]; then
 			CPP_FLAGS+="$item "
 			if [[ $PIO_CC_FLAGS != *"$item"* ]]; then