PREFIX_ARG := $(if $(PREFIX),--prefix $(PREFIX),) LIBDIR_ARG := $(if $(LIBDIR),--libdir $(LIBDIR),) DESTDIR_ARG := $(if $(DESTDIR),--destdir $(DESTDIR),) INSTALL_ARGS := $(PREFIX_ARG) $(LIBDIR_ARG) $(DESTDIR_ARG) DUNE_ARGS = DUNE = dune default: $(DUNE) build @install $(DUNE_ARGS) install: $(DUNE) install $(INSTALL_ARGS) $(DUNE_ARGS) test: $(DUNE) runtest $(DUNE_ARGS) clean: $(DUNE) clean doc: $(DUNE) build @doc $(DUNE_ARGS)