NetBSD/amd64 2.0で、devel/automakeがmakeできない

[ishit <ishit@oak.dti.ne.jp>]

  いしはら  です。

  NetBSD/amd64 2.0で、devel/automakeがmakeできなくて、
困っています。
--
# cd /usr/pkgsrc/devel/automake
# /usr/bin/make
===> Checking for vulnerabilities in automake-1.9.4
===> Configuring for automake-1.9.4
configure: WARNING: If you wanted to set the --build type, don't use --host.
    If a cross compiler is detected then cross compile mode will be used.
checking build system type... x86_64-unknown-netbsd2.0
checking for a BSD-compatible install... /usr/bin/install -c -o root -g wheel
checking whether build environment is sane... yes
checking for gawk... /usr/bin/awk
checking whether make sets $(MAKE)... yes
checking for x86_64--netbsd-strip... no
checking for strip... strip
configure: WARNING: In the future, Autoconf will not detect cross-tools
whose name does not start with the host triplet.  If you think this
configuration is useful to you, please write to autoconf@gnu.org.
checking for perl... /usr/pkg/bin/perl
checking for tex... no
checking whether autoconf is installed... no
configure: error: Autoconf 2.58 or better is required.
    Please make sure it is installed and in your PATH.
*** Error code 1

Stop.
make: stopped in /opt/pkgsrc/devel/automake
===>
===> There was an error during the ``configure'' phase.
===> Please investigate the following for more information:
===>      * config.log
===>      * /opt/pkgsrc/devel/automake/work/.work.log
===>
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/devel/automake
--

devel/autoconfはインストールしてありますし、パスもとおってます。
しかし、上記の結果になります。ちなみに、
/opt/pkgsrc/devel/automake/work/.work.logは存在しません。

なにか心当たりでもありましたら、おしえていただけると幸いです。

よろしくお願いいたします。

-- 
いしはら