[Mimedefang] version 2.11 install error

[Lu]

OS: Solaris 5.7

Apologies if this has been brought up - I searched archives from last
couple of months but couldn't find this specific problem:

make gave no problem.
make install gave this:

mkdir -p /etc/mail
if test "yes" = "yes" ; then \
        mkdir -p /etc/mail/spamassassin; \
fi
mkdir -p /usr/local/bin
mkdir -p /usr/local/man/man5
mkdir -p /usr/local/man/man7
mkdir -p /usr/local/man/man8
mkdir -p /var/spool/MIMEDefang && chmod 700 /var/spool/MIMEDefang
mkdir -p /var/spool/MIMEDefang && chmod 700 /var/spool/MIMEDefang
if test -e /etc/mail/mimedefang-filter ; then \
        /usr/local/bin/install -c -m 644
examples/suggested-minimum-filter-for-windows-clients
/etc/mail/mimedefang-filter.example || exit 1; \
else \
        /usr/local/bin/install -c -m 644
examples/suggested-minimum-filter-for-windows-clients
/etc/mail/mimedefang-filter || exit 1; \
fi
/bin/sh: test: argument expected
make: *** [install] Error 1

Appreciate any help.

Lu