From cc4fd2c9165e9e511ab9be07761204b21ee8bead Mon Sep 17 00:00:00 2001
From: caobug <7737673+caobug@users.noreply.github.com>
Date: Sun, 30 May 2021 23:27:43 +0800
Subject: [PATCH] OSX: Fixed can't find clock_gettime

---
 CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4371a37f6..a02d66453 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -559,6 +559,12 @@ CHECK_FUNCTION_EXISTS(getgrnam_r LWS_HAVE_GETGRNAM_R)
 CHECK_FUNCTION_EXISTS(getpwuid_r LWS_HAVE_GETPWUID_R)
 CHECK_FUNCTION_EXISTS(getpwnam_r LWS_HAVE_GETPWNAM_R)
 
+if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
+	if(CMAKE_OSX_DEPLOYMENT_TARGET LESS "10.12")
+		message("No clock_gettime found on macOS ${CMAKE_OSX_DEPLOYMENT_TARGET}. Disabling LWS_HAVE_CLOCK_GETTIME.")
+		set(LWS_HAVE_CLOCK_GETTIME 0)
+	endif()
+endif()
 
 if (NOT LWS_HAVE_GETIFADDRS)
 	if (LWS_WITHOUT_BUILTIN_GETIFADDRS)