--- src/timer.cpp.orig	2022-08-03 17:42:29.273788399 +0200
+++ src/timer.cpp	2022-08-03 17:47:03.287758459 +0200
@@ -28,6 +28,7 @@
 #include "cxxtools/selector.h"
 #include "cxxtools/datetime.h"
 #include <stdexcept>
+#include <time.h>
 
 namespace cxxtools
 {