Old OpenSSL

[Hal Murray]

> I'm even happier if waf autodetects too old openssl.  We can't just support
> the latest/coolest/shiniest 

It works with all the old systems I have access to.  That includes some that 
are older than yours.  (where age == version number rather than calendar)

I don't have access to Solaris or Mac.

There are a few #ifdef-s in the code.  If we find a setup where we can't make 
it work, then we can work on autodetecting that case.


-- 
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