NTP Configure Bug

[bUttA]

Hi,
I'm trying to compile ntp on a FreeBSD machine:
FreeBSD 5.3-RELEASE

NTP version 4.2.0
Here's the output of the error when I'm configuring:


checking sys/proc.h presence... yes
configure: WARNING: sys/proc.h: present but cannot be compiled
configure: WARNING: sys/proc.h: check for missing prerequisite headers?
configure: WARNING: sys/proc.h: proceeding with the preprocessor's result
configure: WARNING:     ## ------------------------------------ ##
configure: WARNING:     ## Report this to address@hidden ##
configure: WARNING:     ## ------------------------------------ ##
checking for sys/proc.h... yes
checking sys/resource.h usability... yes
checking sys/resource.h presence... yes
checking for sys/resource.h... yes
checking sys/sched.h usability... no
checking sys/sched.h presence... yes
configure: WARNING: sys/sched.h: present but cannot be compiled
configure: WARNING: sys/sched.h: check for missing prerequisite headers?
configure: WARNING: sys/sched.h: proceeding with the preprocessor's result
configure: WARNING:     ## ------------------------------------ ##
configure: WARNING:     ## Report this to address@hidden ##
configure: WARNING:     ## ------------------------------------ ##
checking for sys/sched.h... yes
checking sys/select.h usability... yes
checking sys/select.h presence... yes


I'm going to try an older version to install.


bUttA
Poeta est Agricolae