Bug #120943 for AnyEvent-I3: Makefile.PL broken without "." in @INC

On 2017-04-09 06:13:49, MSTPLBG wrote:
> Am Di 04. Apr 2017, 16:05:44, KENTNL schrieb:
> > 5.25.11+ w/ -Ddefault_inc_excludes_dot and PERL_USE_UNSAFE_INC=0 in ENV:
> >
> >
> >
> > Can't locate inc/Module/Install.pm in @INC (you may need to install the
> > inc::Module::Install module) (@INC contains: /etc/perl
> > /usr/local/lib64/perl5/5.25.11/x86_64-linux /usr/local/lib64/perl5/5.25.11
> > /usr/lib64/perl5/vendor_perl/5.25.11/x86_64-linux
> > /usr/lib64/perl5/vendor_perl/5.25.11 /usr/local/lib64/perl5
> > /usr/lib64/perl5/vendor_perl/5.25.11 /usr/lib64/perl5/vendor_perl/5.22.3
> > /usr/lib64/perl5/vendor_perl /usr/lib64/perl5/5.25.11/x86_64-linux
> > /usr/lib64/perl5/5.25.11) at Makefile.PL line 1.
> > BEGIN failed--compilation aborted at Makefile.PL line 1.
> >
> > --
> > - CPAN kentnl@cpan.org
> > - Gentoo Perl Maintainer kentnl@gentoo.org ( perl@gentoo.org )
>
>
> Thanks for the report. Do you have a suggestion as to how to fix the issue?


There's some draft write up here: http://www.nntp.perl.org/group/perl.perl5.porters/2017/04/msg243878.html

But for Module::Install, the sensible thing is generally do just `use lib '.'` in Makefile.PL

Make sure you test the changes on perl 5.25.11 or newer, with PERL_USE_UNSAFE_INC=0 explicitly set in your environment.

If however if tests and friends are similarly affected by this problem, more caution should be used as per http://www.nntp.perl.org/group/perl.perl5.porters/2017/04/msg243881.html

Wherin you load requirements with more care without resurrected the implict cwd mechanic.

You can do this for Makefile.PL as well, technically, but its more effort than most people bargain on:

https://metacpan.org/source/KENTNL/Parse-Method-Signatures-1.003018_01/Makefile.PL#L1-6

-- 
- CPAN kentnl@cpan.org
- Gentoo Perl Maintainer kentnl@gentoo.org ( perl@gentoo.org )