Apparently 5.36 rejiggers warning classifications in a way that breaks
one of our test cases. Perhaps we should switch it to some other
warning-triggering condition.
regards, tom lane
------- Forwarded Message
Date: Wed, 01 Jun 2022 14:08:46 +0000
From: [email protected]
To: [email protected]
Subject: [Bug 2092426] New: postgresql-14.3-1.fc37: FTBFS with Perl 5.36
https://bugzilla.redhat.com/show_bug.cgi?id=2092426
Bug ID: 2092426
Summary: postgresql-14.3-1.fc37: FTBFS with Perl 5.36
Product: Fedora
Version: rawhide
URL: https://koji.fedoraproject.org/koji/buildinfo?buildID=
1974481
Status: NEW
Component: postgresql
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected]
Target Milestone: ---
Classification: Fedora
I am working on adding Perl 5.36 to Fedora Rawhide/37 (not done yet).
The rebuild of postgresql failed with this version in side tag f37-perl:
=== make failure: src/pl/plperl/regression.diffs ===
diff -U3
/builddir/build/BUILD/postgresql-14.3/src/pl/plperl/expected/plperl.out
/builddir/build/BUILD/postgresql-14.3/src/pl/plperl/results/plperl.out
--- /builddir/build/BUILD/postgresql-14.3/src/pl/plperl/expected/plperl.out
2022-05-09 21:14:45.000000000 +0000
+++ /builddir/build/BUILD/postgresql-14.3/src/pl/plperl/results/plperl.out
2022-06-01 11:23:50.925042793 +0000
@@ -726,8 +726,6 @@
-- check that we can "use warnings" (in this case to turn a warn into an
error)
-- yields "ERROR: Useless use of sort in scalar context."
DO $do$ use warnings FATAL => qw(void) ; my @y; my $x = sort @y; 1; $do$
LANGUAGE plperl;
-ERROR: Useless use of sort in scalar context at line 1.
-CONTEXT: PL/Perl anonymous code block
-- make sure functions marked as VOID without an explicit return work
CREATE OR REPLACE FUNCTION myfuncs() RETURNS void AS $$
$_SHARED{myquote} = sub {
The reason of the failure is a change to existing diagnostics[1]:
"Useless use of sort in scalar context is now in the new scalar category.
When sort is used in scalar context, it provokes a warning that doing this is
not useful. This warning used to be in the void category. A new category for
warnings about scalar context has now been added, called scalar."
Solution is replacing
use warnings FATAL => qw(void)
by
use warnings FATAL => qw(scalar)
for this case.
[1]
https://metacpan.org/dist/perl/view/pod/perldelta.pod#Changes-to-Existing-Diagnostics
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https://bugzilla.redhat.com/show_bug.cgi?id=2092426
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