storm export config improved

resources/cmake/stormConfig.cmake.in

@@ -1,5 +1,6 @@
 set(storm_VERSION @storm_VERSION@)
 
+get_filename_component(storm_CMAKE_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
 
 @DEP_TARGETS@
 
@@ -7,7 +8,7 @@ set(storm_VERSION @storm_VERSION@)
 
 # Our library dependencies (contains definitions for IMPORTED targets)
 if(NOT TARGET storm)
-  include("${PROJECT_BINARY_DIR}/stormTargets.cmake")
+  include("${storm_CMAKE_DIR}/stormTargets.cmake")
 endif()
 
 @PACKAGE_INIT@

src/storm/CMakeLists.txt

@@ -40,7 +40,7 @@ add_library(storm SHARED ${STORM_LIB_SOURCES} ${STORM_LIB_HEADERS})
 set_target_properties(storm PROPERTIES DEFINE_SYMBOL "")
 add_dependencies(storm resources)
 target_link_libraries(storm ${STORM_LINK_LIBRARIES})
-append(STORM_TARGETS storm CACHE STRING INTERNAL FORCE)
+list(APPEND STORM_TARGETS storm CACHE STRING INTERNAL FORCE)
 
 # Create storm.
 add_executable(storm-main ${STORM_MAIN_SOURCES} ${STORM_MAIN_HEADERS})