The base MINC package and a number of the extra packages use a few PERL modules that are not installed on many systems by default. The most common of these are mni_perllib and Getopt::Tabular. You can get mni_perllib from here:
http://packages.bic.mni.mcgill.ca/tgz/mni_perllib-xxxx.tar.gz
Other PERL modules can be downloaded from CPAN
http://www.cpan.org
Step 1: Download the packages you need
Step 2: untar them
$ tar zxvf mni_perllib-xxxx.tar.gz
Step 3: enter the directory
$ cd mni_perllib_xxxx
Step 4: use Perl to make the real Makefile
$ perl Makefile.PL
Step 5: build the package
$ make
Step 6: Install it
$ sudo make install