mac下编译nodejsV0.10.25报错

In file included from ../deps/cares/src/ares_cancel.c:15:
../deps/cares/src/ares_setup.h:79:10: fatal error: 'errno.h' file not found
#include <errno.h> /* needed on windows */

查看ares_setup.h发现，官方竟然写的是if 1这种分支条件，惊愕了！

如何解决？