This is a guide to explain various useful targets in Userland component Makefiles. There is a set of targets that all Makefiles must include, plus some addtional targets that are there for convenience. component-environment-check:: This target is an optional target that will be included in most Makefiles automatically. It is defined in $(WS_MAKE_RULES)/environment.mk which is included by $(WS_MAKE_RULES)/shares-macros.mk. It reports on some interesting information about the current environment and whether or not it is suitable to build, publish, or test the component. component-environment-prep:: This target is an optional target that will be included in most Makefiles automatically. It is defined in $(WS_MAKE_RULES)/environment.mk which is included by $(WS_MAKE_RULES)/shares-macros.mk. It uses the REQUIRE_PACKAGES macro contents to attempt to install any required packages in the current environment. It should never by used by developers to update any public build machines as those are managed by dedicated staff. download:: This target must be present in all Makefiles. It can be used at the top level to act across all components, or on an individual component basis. It is typically defined by including $(WS_MAKE_RULES)/prep.mk in your component Makefile. This target depends on your component Makefile, so changes to your component Makefile will automatically trigger a re-download and subsequent build steps that depend on it. You can use the MAKEFILE_PREREQ macro to override this behaviour and avoid rebuilding with each Makefile change. This macro should only be used in the calling environment via something like: $ gmake MAKEFILE_PREREQ= install prep:: This target must be present in all Makefiles. It can be used at the top level to act across all components, or on an individual component basis. It is typically defined by including $(WS_MAKE_RULES)/prep.mk in your component Makefile. It depends on the previously described "download" target, as well as internal interum targets to unpack source archives and apply patches to the unpacked source. configure: This target is an optional target that can be included in component Makefiles to run the community source configuration phase of a component build. It is typically defined in component Makefiles that make use of the $(WS_MAKE_RULES)/configure.mk Makefile fragment, but could be defined in others that include a source code configuration step. It is not explicitly called during the build, but provides a convenient means of downloading, unpacking, patching, and "configuring" component source for building without actually compiling the bits. build:: This target must be present in all Makefiles. It can be used at the top level to act across all components, or on an individual component basis. It is defined in the individual component Makefiles, but most Makefile fragments under $(WS_MAKE_RULES) include targets that allow the definitions to depend on one of several convenience macros $(BUILD_32), $(BUILD_64), $(BUILD_32_and_64), and $(BUILD_NO_ARCH) to build 32-bit support, 64-bit support, both 32 and 64 bit support, or architecture neutral support. The macro used will depend on the component. install:: This target must be present in all Makefiles. It can be used at the top level to act across all components, or on an individual component basis. It is defined in the individual component Makefiles, but most Makefile fragments under $(WS_MAKE_RULES) include targets that allow the definitions to depend on one of several convenience macros $(INSTALL_32), $(INSTALL_64), $(INSTALL_32_and_64), and $(INSTALL_NO_ARCH) to install 32-bit support, 64-bit support, both 32 and 64 bit support, or architecture neutral support. The macro used will depend on the component and corresponds to the build target macro used. pkglint:: This target is an optional target is automatically defined in each Makefile by the inclusion of $(WS_MAKE_RULES)/prep.mk. It will run the build steps necessary to pkglint the manifests for a component. publish:: This target must be present in all Makefiles. It can be used at the top level to act across all components, or on an individual component basis. It is often automatically defined by including $(WS_MAKE_RULES)/prep.mk. It depends on the previously described 'install' target and will perform a series of internal, intermediate steps to use the component package manifests to generate and publish packages for that component. clean:: This target must be present in all Makefiles. It can be used at the top level to act across all components, or on an individual component basis. It is often automatically defined by including one of the $(WS_MAKE_RULES) Makefile fragments. It cleans up any files created by building the component with the exception of any downloaded files. clobber:: This target must be present in all Makefiles. It can be used at the top level to act across all components, or on an individual component basis. It is often automatically defined by including one of the $(WS_MAKE_RULES) Makefile fragments. It depends on the previously described 'clean' target and additionally cleans up any downloaded source archives. REQUIRED_PACKAGES:: This target is present in all component Makefiles. It is automatically defined by including $(WS_MAKE_RULES)/ips.mk. It is a convenience that can be used to generate the set of REQUIRED_PACKAGES that is needed by the 'pkgdepend resolve' portion of package generation and publication (publish target). It automatically appends to the component Makefile, but the results should be manually verified.