--- /home/jtb/Werkbank/c_c++/ecal/thirdparty/fineftp-server/fineftp-server/src/filesystem.cpp	2022-05-24 11:32:32.000000000 +0200
+++ /home/jtb/Werkbank/c_c++/ecal-fat-source/thirdparty/fineftp-server/fineftp-server/src/filesystem.cpp	2022-05-31 10:32:29.031990966 +0200
@@ -14,6 +14,7 @@
 
 #else // WIN32
 
+#include <cstring>
 #include <dirent.h>
 
 #endif // WIN32