From 95a6d19a4336571f5af703fa953e161c66f16e37 Mon Sep 17 00:00:00 2001
From: Kitsune Ral <Kitsune-Ral@users.sf.net>
Date: Wed, 19 Jul 2017 17:35:45 +0900
Subject: Make sure -Wall is used regardless of the parent project settings

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

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1d118d82..bca58b40 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,6 +19,12 @@ if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
     "MinSizeRel" "RelWithDebInfo")
 endif()
 
+# Setup command line parameters for the compiler and linker
+CHECK_CXX_COMPILER_FLAG("-Wall" WALL_FLAG_SUPPORTED)
+if ( WALL_FLAG_SUPPORTED AND NOT CMAKE_CXX_FLAGS MATCHES "(^| )-Wall($| )")
+    string(APPEND CMAKE_CXX_FLAGS " -Wall")
+endif ( WALL_FLAG_SUPPORTED )
+
 if ( CMAKE_VERSION VERSION_LESS "3.1" )
     CHECK_CXX_COMPILER_FLAG("-std=c++11" STD_FLAG_SUPPORTED)
     if ( STD_FLAG_SUPPORTED )
-- 
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