From a9f82c05375c96fa820c69a0ef0a42d192e15f13 Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Sun, 20 Sep 2015 00:26:30 +0200
Subject: [PATCH] CLANG: Improve compiler flags

---
 cmake/toolchains/Toolchain-posix-clang-native.cmake | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/cmake/toolchains/Toolchain-posix-clang-native.cmake b/cmake/toolchains/Toolchain-posix-clang-native.cmake
index 88492dc960..3629ab0cdf 100644
--- a/cmake/toolchains/Toolchain-posix-clang-native.cmake
+++ b/cmake/toolchains/Toolchain-posix-clang-native.cmake
@@ -9,7 +9,6 @@ set(WARNINGS
     -Wpointer-arith
     -Wlogical-op
     -Wmissing-declarations
-    -Wpacked
     -Wno-unused-parameter
     -Werror=format-security
     -Werror=array-bounds
@@ -19,8 +18,11 @@ set(WARNINGS
     -Werror=unused-variable
     -Werror=double-promotion
     -Werror=reorder
-	-Werror=uninitialized
-	-Werror=init-self 
+    -Werror=uninitialized
+    -Werror=init-self
+    -Werror=return-type
+    -Wno-packed
+    -Wno-frame-larger-than=
     #-Wcast-qual  - generates spurious noreturn attribute warnings,
     #               try again later
     #-Wconversion - would be nice, but too many "risky-but-safe"