From 88349e6cc2f31273db94821d1c3a960ee3362215 Mon Sep 17 00:00:00 2001
From: Anna V <cyber@sysrq.in>
Date: Tue, 9 Apr 2024 03:47:33 +0500
Subject: [PATCH] Fix build failure with LibreSSL

The library can't be compiled with LibreSSL
since 1dc4ac9a0ca4a7e0ef026194a1ce56b45db6fe8d

RFC 7627 APIs were introduced in OpenSSL 1.1.0. This quick fix replaces
SSL_get_extms_support with a macro in versions that don't have it.

---

I license this contribution under the terms set out in the Unlicense
license.
---
 c_src/fast_tls.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/c_src/fast_tls.c b/c_src/fast_tls.c
index b0116b2..0599e8c 100644
--- a/c_src/fast_tls.c
+++ b/c_src/fast_tls.c
@@ -72,6 +72,10 @@ typedef unsigned __int32 uint32_t;
 #define DH_set0_pqg(dh, dh_p, param, dh_g) (dh)->p = dh_p; (dh)->g = dh_g
 #endif
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+#define SSL_get_extms_support(s) 0
+#endif
+
 #if OPENSSL_VERSION_NUMBER < 0x10002000L
 #define SSL_is_server(s) (s)->server
 #endif