Cannot install jail

[Petr Janda]

This error happens when I run make world DESTDIR=$D as according to the 
man page.

/usr/jail/squid/usr/include
usage: install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
              [-o owner] file1 file2
      install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
              [-o owner] file1 ... fileN directory
      install -d [-v] [-g group] [-m mode] [-o owner] directory ...
*** Error code 64
Stop in /usr/src/include.
*** Error code 1

Stop in /usr/src/include.
*** Error code 1

Running 1.6.0-RELEASE.

Thanks.