From 4809001d59b4264ad6d7da8ed511e670524478b7 Mon Sep 17 00:00:00 2001
From: Matthias Kuhn <matthias@opengis.ch>
Date: Fri, 3 Aug 2018 16:36:51 +0200
Subject: [PATCH] Enable -Wimplicit-fallthrough

---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9e1858c78f75..22bbcae9f7fd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -461,7 +461,7 @@ IF (PEDANTIC)
     # ADD_DEFINITIONS( -fstrict-aliasing -Wstrict-aliasing=1 -Wredundant-decls )
 
     IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
-      SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-return-type-c-linkage -Wno-overloaded-virtual")
+      SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-return-type-c-linkage -Wno-overloaded-virtual -Wimplicit-fallthrough")
     ENDIF ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
 
     # add any extra CXXFLAGS flags set by user. can be -D CXX_EXTRA_FLAGS or environment variable