bug notices on NetBSD with GNU coreutils 5.0

[Shrisha Rao]

This happened on a free shell account at sdf.lonestar.org 
(freeshell.org) when I ran configure to compile GNU coreutils 5.0.  No 
idea what it means, and I'm not an admin on that system, but it asked 
me to report, so I am.  The package can be compiled and installed 
nonetheless, FYI.

> configure --prefix=/arpa/ns/s/shrao
checking build system type... alpha-unknown-netbsd1.6.2.
checking host system type... alpha-unknown-netbsd1.6.2.
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes

...

checking for sys/ioctl.h... yes
checking sys/mntent.h usability... no
checking sys/mntent.h presence... no
checking for sys/mntent.h... no
checking sys/mount.h usability... no
checking sys/mount.h presence... yes
configure: WARNING: sys/mount.h: present but cannot be compiled
configure: WARNING: sys/mount.h: check for missing prerequisite headers?
configure: WARNING: sys/mount.h: proceeding with the preprocessor's 
result
configure: WARNING:     ## ------------------------------------ ##
configure: WARNING:     ## Report this to address@hidden ##
configure: WARNING:     ## ------------------------------------ ##
checking for sys/mount.h... yes
checking sys/param.h usability... yes
checking sys/param.h presence... yes
checking for sys/param.h... yes
checking sys/resource.h usability... yes
checking sys/resource.h presence... yes
checking for sys/resource.h... yes
checking sys/socket.h usability... yes
checking sys/socket.h presence... yes
checking for sys/socket.h... yes
checking sys/statfs.h usability... no
checking sys/statfs.h presence... no
checking for sys/statfs.h... no
checking sys/statvfs.h usability... no
checking sys/statvfs.h presence... no
checking for sys/statvfs.h... no
checking sys/sysctl.h usability... no
checking sys/sysctl.h presence... yes
configure: WARNING: sys/sysctl.h: present but cannot be compiled
configure: WARNING: sys/sysctl.h: check for missing prerequisite 
headers?
configure: WARNING: sys/sysctl.h: proceeding with the preprocessor's 
result
configure: WARNING:     ## ------------------------------------ ##
configure: WARNING:     ## Report this to address@hidden ##
configure: WARNING:     ## ------------------------------------ ##
checking for sys/sysctl.h... yes
checking sys/systeminfo.h usability... no
checking sys/systeminfo.h presence... no
checking for sys/systeminfo.h... no

...