|Perl: the Markov chain saw|
#p5p finds your lack of failing tests disturbingby Corion (Pope)
|on Mar 27, 2017 at 17:42 UTC||Need Help??|
5.26 will come with a major change in how Perl builds and runs modules. The current directory will not be in @INC when running Perl programs.
This affects all programs that call require or use and expect files relative to the current directory to be available. Besides plugin systems, any Makefile.PL using for example Module::Install is a likely offender. So far very little has been caught in the net of CPAN testers.
As an example, one of my tests loads Makefile.PL:
This will fail under 5.26+ without the use lib '.'; statement at the top.
I've altered @INC, pray I do not alter it further
If you want to check whether your modules should still work and test OK under the upcoming 5.26 release, I think that the following oneliner should give you a good indication:
If you run author tests or prefer your tests to be run using prove, you have to take care of prove invoking a fresh Perl:
Please test your distributions and release new versions if they need . in @INC. Thanks!
Update: Added call to action and noted where use lib '.' helps.