BUILD: ssl: guard ecdh functions with SSL_CTX_set_tmp_ecdh macro
let us use feature macro SSL_CTX_set_tmp_ecdh instead of comparing openssl
version
diff --git a/src/cfgparse-ssl.c b/src/cfgparse-ssl.c
index 16cac6e..7d14fa0 100644
--- a/src/cfgparse-ssl.c
+++ b/src/cfgparse-ssl.c
@@ -722,7 +722,7 @@
/* parse the "ecdhe" bind keyword keyword */
static int ssl_bind_parse_ecdhe(char **args, int cur_arg, struct proxy *px, struct ssl_bind_conf *conf, int from_cli, char **err)
{
-#if HA_OPENSSL_VERSION_NUMBER < 0x0090800fL
+#if !defined(SSL_CTX_set_tmp_ecdh)
memprintf(err, "'%s' : library does not support elliptic curve Diffie-Hellman (too old)", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#elif defined(OPENSSL_NO_ECDH)