message: argh-- burned by order of libraries in the link line, without this
  patch on my Linux box, libcache.a can't find crc_update()
diff: @@ -155,7 +155,7 @@ if (HIREDIS_LIBRARIES)
  cache/cache.cpp
  )
  add_library(cache STATIC ${CACHE_SRCS})
  - set(ALIVE_LIBS ${ALIVE_LIBS} cache)
  + set(ALIVE_LIBS cache ${ALIVE_LIBS})
  else()
  set(HIREDIS_LIBRARIES $<0:''>)
  add_compile_definitions(NO_REDIS_SUPPORT)
  