Untested.
package strictitude;
require strict;
*unimport = \&strict::unimport;
sub import {
if ($^V and $^V lt v5.6.0) {
my $pkg = caller;
*{"$pkg\::our"} = sub {@_[0..$#_]};
}
else {
goto &strict::import;
}
}
1;
and then use strictitude rather than strict.
The idea is simple, if the Perl version is too low, export a useless our function to prevent errors and turn off strict checks. For recent Perls do what strict does so you can catch undeclared variables.
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