[PATCH] Cygwin: Conditionally build documentation

[Lavrentiev, Anton (NIH/NLM/NCBI) [C]]

> 
> Add a configure option '--disable-doc' to disable building of the
> documentation by the 'all' target.
>

Can you please also add --disable-doc to "configure --help"?  It took me awhile to figure out which option I should use to skip the doc from building because it does no longer ignore doc build failure by default (unlike it used to do).  Also this fact is not reflected in the FAQ here:

https://cygwin.com/faq.html#faq.programming.building-cygwin

which still mentions the doc build errors ignored:

> Normally, building ignores any errors in building the documentation

Thanks!

Anton Lavrentiev
Contractor NIH/NLM/NCBI