From 1ac2479b28c1114b0876123e0db4155abfbf06fe Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Tue, 29 Dec 2020 18:06:25 +0100
Subject: [PATCH] made warning flag optional

---
 CMakeLists.txt | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 02849ca4..aaf9a8af 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -110,11 +110,18 @@ if(CMAKE_COMPILER_IS_GNUCXX)
 	set(WARNING_FLAGS
 		-Wall
 		-Wextra
-		-Wshadow=local
 		-Wimplicit-fallthrough=1
 		-Wno-unused-parameter
 		-Wno-psabi
 	)
+	
+	if(NOT DEFINED WARNING_SHADOW_LOCAL)
+		option(WARNING_SHADOW_LOCAL "Show shadows declarations warning." ON)
+	endif()
+	
+	if(WARNING_SHADOW_LOCAL)
+		list(APPEND WARNING_FLAGS "-Wshadow=local")
+	endif()
 endif()
 
 if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")