I managed to obtain the same MD5 code by running the md5sum command on the 
downloaded file. 
However, I would like to write an automatic way of downloading third-party 
libraries. 
Is it possible to let CMake compute the MD5 of the downloaded file? 

Cédric 

----- Mail original -----

> De: "Cedric Doucet" <cedric.dou...@inria.fr>
> À: cmake@cmake.org
> Envoyé: Mardi 19 Mai 2015 12:37:03
> Objet: [CMake] How URL_MD5 is computed in ExternalProject_Add?

> Hello,

> I use the URL_MD5 variable to avoid downloading more than once a library with
> the ExternalProject_Add command.
> However, I don't manage to get the same MD5 code as CMake when I try to get
> one with generators available on the internet.

> How could I get the same one for an URL written in the form
> http://www.mywebsite.myext/mypath/myfile?
> I have already tried the MD5 of the URL and of myfile but I don't get the
> same MD5 as CMake.

> Thanks!

> Cédric

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