libzrtp ... won't compile

[Mikael Magnusson]

On Sun, Jun 17, 2007 at 09:44:13AM +0200, Werner Dittmann wrote:
> Cesc,
> 
> yes, this is related to openssl version. Some older
> versions don't include SHA256 per default. Can you check
> which version of openSSL is available on the system?
> 
> There is an option available for libzrtccp (I'm not sure
> for minisip) to use libgcrypt (the gnu crypt lib used by
> gpg) instead of openSSL.
> 
> Regards,
> Werner
> 

I have checked in some changes to libzrtpcpp in Minisip which I had
laying around. Now it uses crypto support from libmcrypto instead of using
openssl directly. Which means it can use either openssl or gnutls.

Libmcrypto defaults to openssl, but I think we should change to gnutls
since the openssl license isn't considered GNU GPL compatible by
everybody, and we links against external GPL libraries.

/Mikael M.