[Privoxy-devel] Privoxy 4.2.0 fails to build against the new openssl 4.0 and above

Andre de Lima Schwarz aschwarz at usp.br
Wed Nov 4 01:50:22 CET 2026


Hello,

First of all I would like to thank you for developing this proxy solution.
I have been using it for a while to harden my system, following an online
tutorial, by filtering outgoing HTTP(S) requests. So far it has been
working great and I feel my system is more robust with the software you
develop.

However, I'm still unable to compile the latest version (4.20) against
newer versions of OpenSSL, namely OpenSSL 4.0 and above. For reference, I'm
sending the log of a failed compilation, attached.

I think I solved it with a simple patch generated by lumo.proton.me. I must
acknowledge, though, that I haven't tested it in depth.

I don't know what your respective stances on LLM-based contributions is,
but I could share it with you, if you don't mind.

Best regards,
André


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