CMakeList.txt checks compiler before setting -Wextra

Author: Nicolai Waniek

CMakeLists.txt

@@ -3,8 +3,15 @@ project(qnodeeditor)
 
 add_definitions(-std=c++11)
 set(CMAKE_BUILD_TYPE DEBUG)
-set(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -Wall -Wextra -pedantic")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic")
+
+# set(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -Wall -pedantic")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -pedantic")
+
+# add additional warnings when compiling with gcc or clang
+if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_COMPILER_IS_GNUCC OR (CMAKE_C_COMPILER_ID MATCHES "Clang") OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
+	# set(CMAKE_C_FLAGS   "${CMAKE_C_FLAGS} -Wextra")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wextra")
+endif(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_COMPILER_IS_GNUCC OR (CMAKE_C_COMPILER_ID MATCHES "Clang") OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
 
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)