The structure OVERLAPPING-IMPORTS extends the module system with a facility to check for duplicates entries within the imported names of a module. After loading the package you can add the form (optimize overlapping-imports?) to the definition of the structure you want to monitor, e.g. config> (define-structure foo (export f) (open scheme srfi-1) (begin (define f 23)) (optimize overlapping-imports?)) ; no values returned config> ,load-package foo Warning: Structure has undefined exports #{Structure 153 srfi-1} (for-each) Warning: package has overlapping imports #{Package 181 foo} (assoc (srfi-1 scheme)) (for-each (srfi-1 scheme)) (member (srfi-1 scheme)) (map (srfi-1 scheme)) The structure RT-MODULES provides run-time access to the Scheme 48 module system. (load-config-file file-name) --> unspecific Loads config file containing structure definition. This is the same as ,config ,load file-name in the REPL. (reify-structure structure-name) --> #{Rt-stucture surflet} Creates a rt-structure object representing the structure which name STRUCUTURE-NAME (a symbol). (load-structure rt-structure) --> unspecific Ensures that the definition of the unterlying structure has been loaded. This is the same as ,load-package structure in the REPL. (rt-structure-binding surflet name) --> value Gets the binding for NAME (a symbol) from a rt-structure. (lambda-interface interface-name body ...) --> value of body SYNTAX A variation of lambda which uses the exported names from interface INTERFACE-NAME as the names of the parameters. (with-names-from-rt-structure rt-structure interface body ...) --> value of body SYNTAX Evaluate body with the names from INTERFACE bound to the bindings provided by RT-STRUCTURE.