Diff of /scctl_src/scctl.cpp [a3d2ca] .. [021145]

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--- a/scctl_src/scctl.cpp
+++ b/scctl_src/scctl.cpp
@@ -39,6 +39,7 @@
 #include <getopt.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <signal.h>
 
 #include <string>
 #include <iostream>