An important point that some people forget is that when the tests for your code get run, they need to test against the correct version of perl. Both for this reason, but also because, well, if you don't, then your code isn't properly tested. For this reason, if any of your tests ever need to run another perl process, they need to be careful to get the right perl!

You can't just system(qw(perl ...)) as that will pick up the first perl executable in the path, which may not be the build of perl that the user is interested in. The best way of getting this is: 

use Config;
system($Config{perlpath}, qw(...));

[download]
and even that has some weird edge-cases. To really get the right perl interpreter, use Probe::Perl's find_perl_interpreter method.

In reply to Re^2: Two versions of Perl causing coredump by DrHyde
in thread Two versions of Perl causing coredump by chilukuri_perl

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