Building Tor from Source

coderman coderman at
Mon Oct 12 09:09:45 PDT 2020

Hello Karl!

It looks like your OpenSSL headers don't match what Tor expects during `configure`.

You can try updating your openssl-devel libraries, (sometimes called libssl, libcrypto, ssl-dev, etc. Check accordingly for your distro).

You can try building and linking against your own SSL, ala:
./Configure --prefix=/usr no-idea no-rc5 no-mdc2 zlib-dynamic threads shared

just remember to pass the right options to configure!

If neither of these work, let me know what OS distribution you're on, and what version is returned by `openssl version`, and I'll try to help...

best regards,

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Sunday, October 11, 2020 9:15 PM, Karl <gmkarl at> wrote:

> hey coderman,
> you know a lot more about this than me, do you know how to quickly fix
> my ssl error?  [ build adventure continues... ]

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