[CMake] Feature request: expose curl to cmake -E

[Jakob van Bethlehem]

> 
> I thought 'curl' is sort of at the level of 'tar', in being a useful
> tool that could be exposed fairly easily in a cmake portable command.

Have you ever checked out the full man page of curl and the full feature list? (http://curl.haxx.se/docs/manpage.html)
This is certainly not ‘easy’ to simply port ;-)

Sincerely,
Jakob