ruby-duckdb.h in duckdb-0.6.1

- old
+ new

@@ -6,9 +6,13 @@
 
 #ifdef HAVE_DUCKDB_APPEND_DATA_CHUNK
 #define HAVE_DUCKDB_H_GE_V033 1
 #endif
 
+#ifdef HAVE_DUCKDB_VALUE_STRING
+#define HAVE_DUCKDB_H_GE_V060 1
+#endif
+
 #include "./error.h"
 #include "./database.h"
 #include "./connection.h"
 #include "./result.h"
 #include "./column.h"