From 6945096ba16bfae115309e4318b077c9d9fc2f28 Mon Sep 17 00:00:00 2001
From: Matt Clarkson <mattyclarkson@gmail.com>
Date: Fri, 1 Aug 2014 10:53:24 +0100
Subject: [PATCH] Add -Wshadow if supported

---
 CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 721222a5..c1ad616f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,6 +40,10 @@ check_cxx_compiler_flag(-Wall HAVE_FLAG_WALL)
 if (HAVE_FLAG_WALL)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
 endif()
+check_cxx_compiler_flag(-Wshadow HAVE_FLAG_WSHADOW)
+if (HAVE_FLAG_WSHADOW)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wshadow")
+endif()
 check_cxx_compiler_flag(-Werror HAVE_FLAG_WERROR)
 if (HAVE_FLAG_WERROR)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")