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From: Niko Tyni <ntyni@debian.org>
Date: Sun, 3 Oct 2010 21:36:17 +0300
Subject: Squelch locale warnings in Debian package maintainer scripts
Bug-Debian: http://bugs.debian.org/508764
The system locales are rather frequently out of sync with the C library
during package upgrades, causing a huge amount of useless Perl locale
warnings. Squelch them when running package maintainer scripts, detected
by the DPKG_RUNNING_VERSION environment variable.
Any real locale problem will show up after the system upgrade too, and
the warning will be triggered normally again at that point.
---
locale.c | 3 +++
pod/perllocale.pod | 8 ++++++++
2 files changed, 11 insertions(+)
diff --git a/locale.c b/locale.c
index 87e11d6..8f5a3b4 100644
--- a/locale.c
+++ b/locale.c
@@ -3247,6 +3247,9 @@ Perl_init_i18nl10n(pTHX_ int printwarn)
const bool locwarn = (printwarn > 1
|| ( printwarn
+ &&
+ /* Debian specific change - see http://bugs.debian.org/508764 */
+ ( ! PerlEnv_getenv("DPKG_RUNNING_VERSION"))
&& ( ! bad_lang_use_once
|| (
/* disallow with "" or "0" */
diff --git a/pod/perllocale.pod b/pod/perllocale.pod
index df2db5c..f621919 100644
--- a/pod/perllocale.pod
+++ b/pod/perllocale.pod
@@ -1297,6 +1297,14 @@ B<NOTE>: C<PERL_BADLANG> only gives you a way to hide the warning message.
The message tells about some problem in your system's locale support,
and you should investigate what the problem is.
+=item DPKG_RUNNING_VERSION
+
+On Debian systems, if the DPKG_RUNNING_VERSION environment variable is
+set (to any value), the locale failure warnings will be suppressed just
+like with a zero PERL_BADLANG setting. This is done to avoid floods
+of spurious warnings during system upgrades.
+See L<http://bugs.debian.org/508764>.
+
=back
The following environment variables are not specific to Perl: They are
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