find xercesc is now provided by cmake, so we use that

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required (VERSION 2.8.6)
+cmake_minimum_required (VERSION 3.2)
 cmake_policy(VERSION 3.2)
 
 # Set project name

resources/3rdparty/include_xerces.cmake

@@ -1,7 +1,6 @@
 if(USE_XERCESC)
-	set(XERCESC_FIND_QUIETLY ON)
-    find_package(Xerces QUIET REQUIRED)
-    if(XERCESC_FOUND)
+	find_package(XercesC QUIET)
+    if(XercesC_FOUND)
         message(STATUS "Storm - Use system version of xerces.")
     else()
         message(STATUS "Storm - Use shipped version of xerces.")
@@ -20,13 +19,13 @@ if(USE_XERCESC)
         )
 
         set(XERCESC_ROOT ${STORM_3RDPARTY_BINARY_DIR}/xercesc-3.1.2)
-        set(XERCESC_INCLUDE ${XERCESC_ROOT}/include)
+        set(XercesC_INCLUDE_DIRS ${XERCESC_ROOT}/include)
         set(XERCESC_LIBRARY_PATH ${XERCESC_LIB_DIR})
 
         if(BUILD_STATIC)
-            set(XERCESC_LIBRARIES ${XERCESC_LIBRARY_PATH}/libxerces-c${STATIC_EXT})
+            set(XercesC_LIBRARIES ${XERCESC_LIBRARY_PATH}/libxerces-c${STATIC_EXT})
         else()
-            set(XERCESC_LIBRARIES ${XERCESC_LIBRARY_PATH}/libxerces-c${DYNAMIC_EXT})
+            set(XercesC_LIBRARIES ${XERCESC_LIBRARY_PATH}/libxerces-c${DYNAMIC_EXT})
         endif()
 
         add_dependencies(resources xercesc)
@@ -34,7 +33,7 @@ if(USE_XERCESC)
 
     message (STATUS "Storm - Linking with xercesc.")
     set(STORM_HAVE_XERCES ON)
-    include_directories(${XERCESC_INCLUDE})
+    include_directories(${XercesC_INCLUDE_DIRS})
     if(APPLE)
         FIND_LIBRARY(COREFOUNDATION_LIBRARY CoreFoundation )
         FIND_LIBRARY(CORESERVICES_LIBRARY CoreServices )
@@ -42,7 +41,7 @@ if(USE_XERCESC)
 		mark_as_advanced(CORESERVICES_LIBRARY)
     endif()
     find_package(CURL)
-    list(APPEND STORM_GSPN_LINK_LIBRARIES ${XERCESC_LIBRARIES} ${COREFOUNDATION_LIBRARY} ${CORESERVICES_LIBRARY} ${CURL_LIBRARIES})
+    list(APPEND STORM_GSPN_LINK_LIBRARIES ${XercesC_LIBRARIES} ${COREFOUNDATION_LIBRARY} ${CORESERVICES_LIBRARY} ${CURL_LIBRARIES})
 else()
     message (WARNING "Storm - Building without Xerces disables parsing XML formats (for GSPNs)")
 endif(USE_XERCESC)

resources/cmake/find_modules/FindXerces.cmake

@@ -12,14 +12,6 @@ IF (XERCESC_INCLUDE AND XERCESC_LIBRARY)
     SET(XERCESC_FIND_QUIETLY TRUE)
 ENDIF (XERCESC_INCLUDE AND XERCESC_LIBRARY)
 
-OPTION(XERCESC_STATIC "Set to ON to link your project with static library (instead of DLL)." ON)
-
-IF (NOT ${XERCESC_WAS_STATIC} STREQUAL ${XERCESC_STATIC})
-    UNSET(XERCESC_LIBRARY CACHE)
-    UNSET(XERCESC_LIBRARY_DEBUG CACHE)
-ENDIF (NOT ${XERCESC_WAS_STATIC} STREQUAL ${XERCESC_STATIC})
-
-SET(XERCESC_WAS_STATIC ${XERCESC_STATIC} CACHE INTERNAL "" )
 
 FIND_PATH(XERCESC_INCLUDE NAMES xercesc/util/XercesVersion.hpp
         PATHS