Library Import

The build system can automatically import libraries using their build/import.mk fragment.

In the build target of your project’s top-level Makefile you need to recursively call Make on this fragment:

$(MAKE) $(QUIET_ARG) -f $LIBRARY/build/import.mk

This is usually done in a loop in order to easily import multiple libraries:

$(Q)for SUBPROJECT in $(INTERNAL_DEPENDENCIES) ; do \
    $(MAKE) $(QUIET_ARG) -f $$SUBPROJECT/build/import.mk ; done

In which case any new library need only be added to the list.

Unit and integration testing require less manual handle-turning since they provide this mechanism automatically:

unit-tests/%: export IMPORT_PARTS   = $(CORE_ROOT_DIR)/infrastructure \
                                      $(CORE_ROOT_DIR)/components/science

What’s more this mechanism can import them even if they don’t have an import.mk fragment. This default import will do a source extract and PSyclone any algorithms.