Makefile targets

The XProc specification, langspec.html

The glossary, glossary.xml

Ancillary files, pipeline-library.xml, typed-pipeline-library.xml, and error-list.xml

Namespace documents, ns-xproc.html, ns-xproc-step.html, and ns-xproc-error.html

Examples, via recursive call to another Makefile

Schemas, via a recursive call to another Makefile