Linking the link library to your module is simply a matter of adding the following line to the module’s Makefile (for GNU Make builds):
MODULE_LDFLAGS = -llink
For CMake-based builds, use target_link_libraries to link against the link library instead.
The init_local() function in the link module needs to call the SIMLINK_init_library() function:
void
init_local()
{
/* The link library must always be initialised first. */
SIMLINK_init_library();
/* The rest of the module initialization */
}