--- /dev/null
+--- a/database.h
++++ b/database.h
+@@ -60,7 +60,7 @@ struct db_enumerator {
+ /*
+ * Field operations
+ */
+-inline int field_id(int i);
++static inline int field_id(int i);
+ abook_field *find_standard_field(char *key, int do_declare);
+ abook_field *real_find_field(char *key, abook_field_list *list, int *nb);
+ #define find_field(key, list) real_find_field(key, list, NULL)