Added include directories to targets (How was this ever working?)

cmake/CMakeHelpers.cmake

@@ -89,14 +89,17 @@ endmacro ()
 
 macro (link_boost)
     target_link_libraries (${TARGET_NAME} ${Boost_LIBRARIES})
+    set_property(TARGET ${TARGET_NAME} APPEND PROPERTY INCLUDE_DIRECTORIES ${Boost_INCLUDE_DIR})
 endmacro ()
 
 macro (link_openssl)
     target_link_libraries (${TARGET_NAME} ${OPENSSL_SSL_LIBRARY} ${OPENSSL_CRYPTO_LIBRARY})
+    set_property(TARGET ${TARGET_NAME} APPEND PROPERTY INCLUDE_DIRECTORIES ${OPENSSL_INCLUDE_DIR})
 endmacro ()
 
 macro (link_zlib)
 	target_link_libraries (${TARGET_NAME} ${ZLIB_LIBRARIES})
+    set_property(TARGET ${TARGET_NAME} APPEND PROPERTY INCLUDE_DIRECTORIES ${ZLIB_INCLUDE_DIR})
 endmacro ()
 
 macro (include_subdirs PARENT)