From 80baa55bde1d6e411028b0965502cc7e29ebe23a Mon Sep 17 00:00:00 2001
From: yixinglu <2520865+yixinglu@users.noreply.github.com>
Date: Mon, 21 Feb 2022 16:55:00 +0800
Subject: [PATCH] Fix compile error about SOL_TLS and TCP_ULP macros introduced
 after glibc 2.27

---
 fizz/experimental/ktls/LinuxKTLS.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fizz/experimental/ktls/LinuxKTLS.h b/fizz/experimental/ktls/LinuxKTLS.h
index 45378735f5e..6d7cd69fdc0 100644
--- a/fizz/experimental/ktls/LinuxKTLS.h
+++ b/fizz/experimental/ktls/LinuxKTLS.h
@@ -39,10 +39,11 @@
 
 #if defined(__linux__) && !FOLLY_MOBILE
 #include <linux/version.h>
+#include <gnu/libc-version.h>
 
 // Minimum version of linux uapi headers we require; this is when linux/tls.h
 // was introduced
-#if LINUX_VERSION_CODE < 265216
+#if (LINUX_VERSION_CODE < 265216) || (__GLIBC__ < 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 27)
 #define FIZZ_PLATFORM_CAPABLE_KTLS 0
 #else
 #define FIZZ_PLATFORM_CAPABLE_KTLS 1