Hello, I'm one of the perl maintainers in Debian. In Debian we're still
finalising the release notes for this issue for our next release; I
suspect noone thought about communicating this change for Ubuntu :( A
couple of observations that might be helpful to you and others:
1) you can revert this change (if you need to) by commenting out the
relevant line in /etc/perl/sitecustomize.pl
2) I recommend that you in any case check for 'do' returning false, so
that you at least don't get a silent failure.
3) This change is being made in the upcoming 5.26.0 release but for
release timing reasons we have made it early.
** Summary changed:
- Variables set inside files executed with do not visible to script
+ silent failure in 'do' due to '.' being removed from @INC
** Summary changed:
- silent failure in 'do' due to '.' being removed from @INC
+ 'do' no longer loading files from '.' due to '.' being removed from @INC
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https://bugs.launchpad.net/bugs/1683179
Title:
'do' no longer loading files from '.' due to '.' being removed from
@INC
Status in perl package in Ubuntu:
New
Bug description:
I just downloaded and compiled stock Perl 5.24.1 without any Ubuntu
packages.
Then I put this in a file called foo.pl:
--cut
do 'froodle.conf';
print $froodle, "\n";
--cut
and this in froodle.conf:
--cut
$froodle = 'freedle';
--cut
Then I ran "perl foo.pl" with the stock Perl I had just compiled, and
saw this:
--cut
$ perl foo.pl
freedle
$
--cut
However, when I run "perl foo.pl" with the version of Perl included in
Zesty, I see this:
--cut
$ perl foo.pl
$
--cut
This is a serious, significant difference in behavior between stock
Perl and Ubuntu's Perl, and a regression from Yakkety.
Using "do EXPR" to get variable settings from configuration files is
even documented in the Perl documentation
(https://perldoc.perl.org/functions/do.html). You can't just break
this. :-/
ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: perl 5.24.1-2ubuntu1
ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
Uname: Linux 4.10.0-19-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
CurrentDesktop: Unity:Unity7
Date: Sun Apr 16 16:11:29 2017
InstallationDate: Installed on 2016-01-16 (456 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: perl
UpgradeStatus: Upgraded to zesty on 2017-04-14 (2 days ago)
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