--- src/filezilla/strsyserror.cpp	2024-08-07 23:13:13.000000000 +0800
+++ src/filezilla/strsyserror.cpp	2026-03-19 02:32:51.000000000 +0800
@@ -6,6 +6,7 @@
 #	include <libfilezilla/string.hpp>
 #else
 #	include <string.h>
+#	include <errno.h>
 #endif