Bug 454450

Summary:	perl ebuilds could warn if they fail AND PERL5LIB is set
Product:	Gentoo Linux	Reporter:	Raphaël Droz <raphael.droz+floss>
Component:	[OLD] Development	Assignee:	Gentoo Perl team <perl>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	esigra
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	239510

Description Raphaël Droz 2013-01-28 17:46:17 UTC

I just found the reason I had so many trouble re-emerging perl-core ebuilds today after having recompiled perl +ithreads.

* unpriv user has PERL5LIB set to ~/.perl/modules/lib/perl5
* when using su, the variable is still set
* when running emerge, the variable is still set
* if you happen to have bad/outdated/...  perl modules, emerge may fail in many ways.
In such cases, that would help if perl-related ebuilds could warn about this.
Another option is to simply unset PERL5LIB before ebuild actually runs.

(In my case, I had an outdated version of JSON::PP in ~, so the "Writing Makefile" step warned, or even failed (eg: MP3-Info) and many other strange dependency issues)


Reproducible: Sometimes

Steps to Reproduce:
1. setup PERL5LIB
2. download an outdated version of JSON::PP using CPAN, in $PERL5LIB
3. emerge MP3-Info
Actual Results:  
Writing Makefile for MP3::Info
JSON::PP 2.27103 is not available
 at /usr/lib64/perl5/vendor_perl/5.12.4/CPAN/Meta/Converter.pm line 22
 at /usr/lib64/perl5/vendor_perl/5.12.4/ExtUtils/MM_Any.pm line 1278
 * ERROR: dev-perl/MP3-Info-1.240.0 failed (configure phase):

Expected Results:  
emerge should ignore $PERL5LIB and succeed, or at least warn about this variable being set.

Comment 1 Andreas K. Hüttel archtester

2014-12-03 23:34:09 UTC

Reasonable idea, since this is a fair way of shooting yourself in the foot.

Comment 2 Andreas K. Hüttel archtester

2015-03-21 22:48:55 UTC


*** This bug has been marked as a duplicate of bug 543042 ***