Add new CMake policy for Boost integration

Author: Carsten Griwodz

src/application/CMakeLists.txt

@@ -39,6 +39,10 @@ endif()
 
 find_package(DevIL COMPONENTS IL ILU) # yields IL_FOUND, IL_LIBRARIES, IL_INCLUDE_DIR
 
+# for newer CMake versions and Boost 1.70 pr newer must use Boost's make file
+if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.30)
+  cmake_policy(SET CMP0167 NEW)
+endif()
 if(PopSift_BOOST_USE_STATIC_LIBS)
   set(Boost_USE_STATIC_LIBS ON)
 endif()