What linking is provided?

The static linking schema can be used on all versions of SWI-Prolog. The feature/2 predicate may be used to find out what other linking methods are provided for this version.

feature(load_foreign, true) If this succeeds the system provides the load_foreign/2 and load_foreign/5 predicates that allow for loading object files ( .o files on Unix machines). feature(open_shared_object, true)    If this succeeds the system provides the open_shared_object/2 and related predicates that allow for handling Unix shared object files based on the Unix library functions dlopen() and friends. See section .

Note that, as this feature conflicts with save/[1,2] and save_program/[1,2], it is not enabled by default. To enable it, the system should be configured using:

% sh configure --enable-dlopen

feature(dll, true) If this succeeds the system provides an interface for loading .DLL

files by means of open_dll/2 and friends. See section .

If either the feature open_shared_object or dll is true, the library library(shlib.pl) provides a common interface for loading foreign files from Prolog.

Note that a specific version of SWI-Prolog may offer multiple of these loading facilities.