LibreSSL has removed compression support. Tor should check for the OPENSSL_NO_COMP define before trying to disable compression at runtime.
diff --git a/src/common/tortls.c b/src/common/tortls.c index e06a2ae..0f98968 100644 --- a/src/common/tortls.c +++ b/src/common/tortls.c @@ -1314,10 +1314,12 @@ tor_tls_context_new(crypto_pk_t *identity, unsigned int key_lifetime, SSL_CTX_set_options(result->ctx, SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION); } +#ifndef OPENSSL_NO_COMP /* Don't actually allow compression; it uses ram and time, but the data * we transmit is all encrypted anyway. */ if (result->ctx->comp_methods) result->ctx->comp_methods = NULL; +#endif #ifdef SSL_MODE_RELEASE_BUFFERS SSL_CTX_set_mode(result->ctx, SSL_MODE_RELEASE_BUFFERS); #endif