cmake: use SYSTEM when include directories

CMakeLists.txt

@@ -60,7 +60,7 @@ ENDIF(APPLE)
 setup_hpp_project()
 
 add_required_dependency("eigen3 >= 3.0.0")
-include_directories(${EIGEN3_INCLUDE_DIRS})
+include_directories(SYSTEM ${EIGEN3_INCLUDE_DIRS})
 
 # Add a cache variable to allow not compiling and running tests
 set (RUN_TESTS TRUE CACHE BOOL "compile and run unit tests")

src/CMakeLists.txt

@@ -83,7 +83,7 @@ set(${LIBRARY_NAME}_SOURCES
   )
 
 # Declare boost include directories
-include_directories(${Boost_INCLUDE_DIRS})
+include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
 link_directories(${Boost_LIBRARY_DIRS})
 
 add_library(${LIBRARY_NAME}

test/CMakeLists.txt

@@ -18,7 +18,7 @@ macro(add_fcl_test test_name)
 endmacro(add_fcl_test)
 
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
-include_directories(${Boost_INCLUDE_DIRS})
+include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
 
 
 add_fcl_test(test_fcl_math test_fcl_math.cpp)