--- CMakeLists.txt
+++ CMakeLists.txt
@@ -55,6 +55,8 @@ MACRO(CMAKE_HANDLE_SYSTEM_LIBRARIES)
     CMAKE_DEPENDENT_OPTION(CMAKE_USE_SYSTEM_ZLIB "Use system-installed zlib"
       ${CMAKE_USE_SYSTEM_LIBRARIES} "NOT CMAKE_USE_SYSTEM_CURL" ON)
     
+   SET(CMAKE_USE_SYSTEM_XMLRPC 0 CACHE BOOL "Use system-installed xmlrpc" FORCE)
+
     # There is currently no option for system tar because the upstream
     # libtar does not have our modifications to allow reentrant
     # object-oriented use of the library.