配置错误（警告） - 关于咖啡???

Question

得到了配置（最后一行）警告：

checking for getpagesize... yes 
checking for working mmap... yes 
checking for ftruncate... yes 
checking for memcmp... yes 
checking for memcpy... yes 
checking for memmove... yes 
checking for memset... yes 
checking whether overlapping arrays are copied correctly... yes 
checking the coffee machine... empty - operator may not work as expected 

它是什么？

来源是从Debian软件包的libelf函数。

PS：从configure.in中

AC_CACHE_CHECK([the coffee machine], mr_cv_coffee_machine, 
    [mr_cv_coffee_machine='empty - operator may not work as expected']) 

Answer 1

你忘了咖啡机或可能用于操作机器的电缆断线的切换。

你怎么想，所有的论文脚本保持夜以继日不含咖啡因的好球？