When building latex documentation for the first time round, the make of
c-api fails with "! LaTeX Error: Environment cmemberdescni undefined.". 

A second make builds c-api and all other documents successfully.
However, The pdf document c-api.pdf is lacking the TOC and the Index.
All other PDFs have a TOC and an Index. 

I will include the a copy of the make output (typescript.org) - first
call to make.