From fb0e905e242c2044fd25683a406eb6d369db052f Mon Sep 17 00:00:00 2001
From: Allen Winter <allen.winter@kdab.com>
Date: Wed, 19 Feb 2020 18:04:24 -0500
Subject: [PATCH] CMakeLists.txt - allow compilers without -Wsuggest-override

test for the -Wsuggest-override compiler option
---
 CMakeLists.txt | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 36a59872f..addbafe2b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -110,11 +110,11 @@ if(MSVC)
   add_definitions(-D_SCL_SECURE_NO_WARNINGS)
 endif()
 
-if(CMAKE_COMPILER_IS_GNUCXX)
-  if(CMAKE_VERSION VERSION_LESS "3.0")
+if(CMAKE_COMPILER_IS_GNUCXX OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
+  include(CheckCXXCompilerFlag)
+  check_cxx_compiler_flag(-Wsuggest-override HAVE_GXX_SUGGEST_OVERRIDE)
+  if(HAVE_GXX_SUGGEST_OVERRIDE)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wsuggest-override")
-  else()
-    add_compile_options(-Wsuggest-override)
   endif()
 endif()