Can no longer update any ports. Configure problem

[Tofik Suleymanov]

Alastair G. Hogge wrote:

>Hello,
>
>I get the following for a whole bunch of out dated ports on my system. This is 
>taken from autoconf, but it's basicly the same for all other ports.
>
>===>  Vulnerability check disabled, database not found
>===>  Extracting for autoconf-2.59_2
>=> Checksum OK for autoconf-2.59.tar.bz2.
>===>   autoconf-2.59_2 depends on file: /usr/local/bin/perl5.8.6 - found
>===>  Patching for autoconf-2.59_2
>===>   autoconf-2.59_2 depends on file: /usr/local/bin/perl5.8.6 - found
>===>  Applying FreeBSD patches for autoconf-2.59_2
>===>   autoconf-2.59_2 depends on executable: gm4 - found
>===>   autoconf-2.59_2 depends on executable: help2man - found
>===>   autoconf-2.59_2 depends on executable: gmake - found
>===>   autoconf-2.59_2 depends on file: /usr/local/bin/perl5.8.6 - found
>===>  Configuring for autoconf-2.59_2
>checking for a BSD-compatible install... /usr/bin/install -c -o root -g wheel
>checking whether build environment is sane... configure: error: ls -t appears 
>to fail.  Make sure there is not a broken
>alias in your environment
>configure: error: newly created file is older than distributed files!
>
if you'd be more attentive,you'd see that configure script complains about broken system time:

"configure: error: newly created file is older than distributed files!"