ARGS_SEP_COMMA
#define bar DROP_FIRST_ARG(foo(ARGS_SEP_COMMA __stringify))
#define buz CALL_ARGS(COUNT_ARGS, DROP_FIRST_ARG(foo(ARGS_SEP_COMMA)))
(CALL_ARGS(COUNT_ARGS, MAKE_XE_GUC_KLV_THRESHOLDS_SET(ARGS_SEP_COMMA)) - 1)