Set compiler flags for Clang.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 11b71394a23c3a1a0ea40c3b040120d2c084a32c..d64ac9db0302e92e1d3d1f8502df5db396d2a896 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -97,6 +97,20 @@ IF ("CMAKE_C_COMPILER_ID" MATCHES "^GNU$")
   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wmissing-prototypes")
   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wcast-qual")
 ENDIF ("CMAKE_C_COMPILER_ID" MATCHES "^GNU$")
+IF ("CMAKE_C_COMPILER_ID" MATCHES "^Clang$")
+  SET(CMAKE_REQUIRED_FLAGS "-Wall -Wformat -Wformat-security")
+  #################################################################
+  # Set compile flags for all build types.
+  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wformat -Wformat-security")
+  #################################################################
+  # Set compile flags for debug build.
+  # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug"
+  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g")
+  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Werror -Wextra -Wunused")
+  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wshadow")
+  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wmissing-prototypes")
+  SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wcast-qual")
+ENDIF ("CMAKE_C_COMPILER_ID" MATCHES "^Clang$")
 IF (MSVC)
   #################################################################
   # Set compile flags for debug build.