CMake: Create PocoConfig.cmake to make importable from other CMake projects

The generated PocoConfig.cmake can be used by other CMake projects using find_package.

ApacheConnector/CMakeLists.txt

@@ -8,14 +8,18 @@ POCO_SOURCES_AUTO( SRCS ${SRCS_G})
 file(GLOB_RECURSE HDRS_G "include/*.h" )
 POCO_HEADERS_AUTO( SRCS ${HDRS_G})
 
-include_directories( "include" )
-
-add_library( ${LIBNAME} SHARED ${SRCS} )
-set_target_properties( ${LIBNAME}
+add_library( "${LIBNAME}" SHARED ${SRCS} )
+set_target_properties( "${LIBNAME}"
     PROPERTIES
     VERSION ${SHARED_LIBRARY_VERSION} SOVERSION ${SHARED_LIBRARY_VERSION}
     DEFINE_SYMBOL ApacheHandlers_EXPORTS)
-target_link_libraries( ${LIBNAME} )
+target_link_libraries( "${LIBNAME}" )
+target_include_directories( "${LIBNAME}"
+    PUBLIC
+        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+        $<INSTALL_INTERFACE:include>
+    PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src
+    )
 
 if (ENABLE_TESTS)
   add_subdirectory(samples)