Thanks.
I already tried this but I am failing:

$ cat Makefile.PL
use warnings;
use strict;

use ExtUtils::MakeMaker;

WriteMakefile(
    NAME              => 'Math::Calc',
    VERSION           => '1.0',
    PREREQ_PM         => {}, # e.g., Module::Name => 1.1
    EXE_FILES         => [ 'scripts/calc.pl' ],
    ABSTRACT_FROM     => 'lib/Math/Calc.pod', # retrieve abstract from
+ pod
    AUTHOR            => 'Procesadores de Lenguaje <casiano@ull.es>',
    depend            => { 'test' => 'calc' },
);

sub MY::postamble {

  return <<'EOM';
calc: lib/Math/Calc.pm

lib/Math/Calc.pm: lib/Math/Calc.eyp
        eyapp -s -m Math::Calc -o lib/Math/Calc.pm lib/Math/Calc.eyp

myclean: veryclean
        rm -f Math-Calc-*.tar.gz
        cover -delete

rmcalc:
        rm -f lib/Math/Calc.pm

mytest: calc test

remotetest: calc dist
        remotetest.pl ${DISTVNAME}.tar.gz orion beowulf

coverage: calc
        cover -delete
        make HARNESS_PERL_SWITCHES=-MDevel::Cover test
        cover

EOM
}
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It says s.t. like:

$ perl Makefile.PL
Writing Makefile for Math::Calc
$ make test
Makefile:779: *** el archivo de objetivos `test' tiene líneas con : y 
+::.  Alto.
[download]

Waht I am doing wrong?
I also unsuccessfully tried to add a colon to the target descriptor:

depend            => { 'test:' => 'calc' },
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