https://github.com/GothenburgBitFactory/libshared/pull/71
--- a/src/libshared/src/JSON2.h
+++ b/src/libshared/src/JSON2.h
@@ -27,6 +27,7 @@
 #ifndef INCLUDED_JSON2
 #define INCLUDED_JSON2
 
+#include <cstdint>
 #include <string>
 
 class JSON2