SCM

2.5: Configure Module Catalog

The SLIB module catalog can be extended to define other require-able packages by adding calls to the Scheme source file `mkimpcat.scm'. Within `mkimpcat.scm', the following procedures are defined.

Function: add-link feature object-file lib1 ...

feature should be a symbol. object-file should be a string naming a file containing compiled object-code. Each libn argument should be either a string naming a library file or #f.

If object-file exists, the add-link procedure registers symbol feature so that the first time require is called with the symbol feature as its argument, object-file and the lib1 ... are dynamically linked into the executing SCM session.

If object-file exists, add-link returns #t, otherwise it returns #f.

Function: add-alias alias feature

alias and feature are symbols. The procedure add-alias registers alias as an alias for feature. An unspecified value is returned.

add-alias causes (require 'alias) to behave like (require 'feature).

Function: add-source feature filename

feature is a symbol. filename is a string naming a file containing Scheme source code. The procedure add-source registers feature so that the first time require is called with the symbol feature as its argument, the file filename will be loaded. An unspecified value is returned.