Rhett,
I can't answer your actual question but I am interested in what you plan with 
nettle as a while ago I did some work on it which I am happy to share if its of 
interest.  Particularly I improved its capacity to use keys rather than 
passwords for ssh.  Unfortunately it got abandoned as it wasn't building 
compatible with the PI and I just haven’t got back to it for a long time.
Alan



On 15/10/21, 10:21 am, "Rhett Aultman" <gcc-boun...@gccsdk.riscos.info on 
behalf of rh...@rhettaultman.com> wrote:

    Hi, all,
    
    I've recently become interested in RISC OS because of its support for more 
    minimal hardware specs while supporting a number of features critical for 
    modern computing (e.g. SSL/TLS).
    
    I'm trying to get Nettle building from source, and it appears to require a 
    gccsdk setup, which I've done, and also a number of libraries from gccsdk 
    which I could get through the build-libs script.  One tricky thing, 
    though, is that it appears that some of the libraries, like openssl 1.1.1, 
    build with VFP enabled, while others, like zlib, build with FPA instead. 
    This brings up a linkage problem when it comes time to link Nettle.
    
    I temporarily resolved this through going into the build scripts and 
    forcing VFP everywhere through CFLAGS manipulation, but it's not entirely 
    an ideal process, and really I'd prefer the more widely accepted FPA just 
    because VFP shouldn't be all that important for doing SSH.
    
    Is there a way to control the floating point support that I'm building for 
    that I missed?  Any particular reason why the openssl is building in VFP 
    but other libraries aren't?
    
    Best,
    Rhett
    
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