Added missing signal.h header

pilatomic · pilatomic · commit 4c448295aa69 · 2016-03-28T19:41:14.000+02:00
diff --git a/main.cpp b/main.cpp
@@ -3,6 +3,7 @@
 #include <unistd.h>
 #include <stdint.h>
 #include <chrono>
+#include <signal.h>
 
 #include "libusb/libusb.h"
 #include "midifile/midifile.h"
