make install
Will install (ie. create dirs and copy) luadoc.
Make sure the variables in the Makefile correspond to your needs first:
LUADOC_DIR= $(LUA_DIR)/luadoc DOCLET_DIR= $(LUADOC_DIR)/doclet HTML_DIR= $(DOCLET_DIR)/html TAGLET_DIR= $(LUADOC_DIR)/taglet STANDARD_DIR= $(TAGLET_DIR)/standard LUADOC_REFMAN= doc/refman