commit f9c40ed93330c9add953310b7ac04a0d4f43ec5c
Author: Daniel Jakots <haproxy@chown.me>
Date:   Tue Dec 7 20:34:39 2021 -0500

    BUILD: ssl: unbreak the build with newer libressl
    
    In LibreSSL 3.5.0, BIO is going to become opaque, so haproxy's
    compat macros will no longer work. The functions they substitute
    have been available since LibreSSL 2.7.0.
    
    (cherry picked from commit d1a2e2b0d1da0dff726738343fbaed044fb93470)
    Signed-off-by: Willy Tarreau <w@1wt.eu>
    (cherry picked from commit ca0b6e08dcc3686794d37e8bfcc4e4a4b2adb806)
    Signed-off-by: Willy Tarreau <w@1wt.eu>

--- a/include/haproxy/openssl-compat.h
+++ b/include/haproxy/openssl-compat.h
@@ -386,7 +386,7 @@ static inline void SSL_CTX_up_ref(SSL_CT
 #define SSL_CTX_get_extra_chain_certs(ctx, chain) do { *(chain) = (ctx)->extra_certs; } while (0)
 #endif
 
-#if HA_OPENSSL_VERSION_NUMBER < 0x10100000L
+#if HA_OPENSSL_VERSION_NUMBER < 0x10100000L && (!defined(LIBRESSL_VERSION_NUMBER) || LIBRESSL_VERSION_NUMBER < 0x2070000fL)
 #define BIO_get_data(b)            (b)->ptr
 #define BIO_set_data(b, v)         do { (b)->ptr  = (v); } while (0)
 #define BIO_set_init(b, v)         do { (b)->init = (v); } while (0)