database.h in duckdb-0.5.0

- old
+ new

@@ -5,8 +5,9 @@
     duckdb_database db;
 };
 
 typedef struct _rubyDuckDB rubyDuckDB;
 
+rubyDuckDB *get_struct_database(VALUE obj);
 void init_duckdb_database(void);
 
 #endif