_pylibmcmodule.c: In function 'init_pylibmc':
_pylibmcmodule.c:2140: error: 'LIBMEMCACHED_VERSION_STRING' undeclared (first use in      this function)
_pylibmcmodule.c:2140: warning: passing argument 3 of 'PyModule_AddStringConstant' from    incompatible pointer type
error: Setup script exited with error: command 'gcc' failed with exit status 1