CMake Warning at CMakeLists.txt:57 (message):
  POCO_STATIC has been deprecated.  Please use BUILD_SHARED_LIBS instead.

Cool. Sounds fine to me.
However, subtle thing, maybe this could read as:
... Please use BUILD_SHARED_LIBS=OFF instead.

(When I initially saw this warning I "panicked" and thought "what, no more static builds?")