perl -MExtUtils::Installed -MData::Dumper -le 'print Dumper(ExtUtils::Installed->new->files("Syntax::Construct"))'
$VAR1 = '/home/choroba/perl5/lib/perl5/Syntax/Construct.pm';
$VAR2 = '/home/choroba/perl5/man/man3/Syntax::Construct.3pm';

perl -MExtUtils::Installed -MData::Dumper -le 'print Dumper(ExtUtils::Installed->new->files("Syntax-Construct"))'
Syntax-Construct is not installed at -e line 1.