[CMake] file( DOWNLOAD ) problem

[Eric Noulard]

2012/9/27 David Cole <david.cole at kitware.com>:
> With file(DOWNLOAD, you should always use the EXPECTED_MD5 argument (or
> EXPECTED_HASH with nightly CMake, or 2.8.10 or later) to verify success.

I bet this is not always possible.
Why would you **always** know some hash of the file you are downloading?

May be STATUS is usable in this case as well:

"If STATUS var is specified the status of the operation will be put in
var. The status is returned in a list of length 2. The first element
is the numeric return value for the operation, and the second element
is a string value for the error. A 0 numeric error means no error in
the operation"

-- 
Erk
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