[debhelper-devel] [debhelper] 01/03: Disable PERL_USE_UNSAFE_INC in compat 11

[Niels Thykier]

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nthykier pushed a commit to branch master
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commit 57c7706124a0a9f8bf35834feb22e66808411b54
Author: Niels Thykier <niels at thykier.net>
Date:   Wed Jun 28 09:28:36 2017 +0000

    Disable PERL_USE_UNSAFE_INC in compat 11
    
    Signed-off-by: Niels Thykier <niels at thykier.net>
---
 Debian/Debhelper/Dh_Lib.pm |  2 +-
 debhelper.pod              | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/Debian/Debhelper/Dh_Lib.pm b/Debian/Debhelper/Dh_Lib.pm
index 07c979f..0bae5a4 100644
--- a/Debian/Debhelper/Dh_Lib.pm
+++ b/Debian/Debhelper/Dh_Lib.pm
@@ -1570,7 +1570,7 @@ sub set_buildflags {
 	# Export PERL_USE_UNSAFE_INC as a transitional step to allow us
 	# to remove . from @INC by default without breaking packages which
 	# rely on this [CVE-2016-1238]
-	$ENV{PERL_USE_UNSAFE_INC}=1;
+	$ENV{PERL_USE_UNSAFE_INC} = 1 if compat(10);
 
 	eval "use Dpkg::BuildFlags";
 	if ($@) {
diff --git a/debhelper.pod b/debhelper.pod
index 942334b..0b3f202 100644
--- a/debhelper.pod
+++ b/debhelper.pod
@@ -676,6 +676,18 @@ and B<dh_installman> now accept the parameter B<--sourcedir> with same
 meaning as B<dh_install>. Furthermore, they now also fall back to
 F<debian/tmp> like B<dh_install>.
 
+=item -
+
+The B<PERL_USE_UNSAFE_INC> environment variable is no longer set by
+B<dh> or any of the B<dh_auto_*> tools.  It was added as a temporary
+work around to avoid a lot of packages failing to build at the same
+time.
+
+Note this item will eventually become obsolete as upstream intends
+to drop support for the B<PERL_USE_UNSAFE_INC> environment variable.
+When perl drops support for it, then this variable will be removed
+retroactively from existing compat levels as well.
+
 =back
 
 =back

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