[squid-dev] configure: error: Basic auth helper NIS ... found but cannot be built

[Dengke Du]

When the configure check:

|checking for winldap.h... no
|checking for sys/types.h... (cached) yes
|checking for rpc/rpc.h... (cached) no
|checking for rpcsvc/ypclnt.h... yes
|checking for rpcsvc/yp_prot.h... yes
|checking for crypt.h... (cached) yes

|configure: error: Basic auth helper NIS ... found but cannot be built

I am sure the rpc/rpc.h exist in /usr/include

why the configure script can't find it?