From f6095fa5db1e4d277a0660806875375d60286250 Mon Sep 17 00:00:00 2001
From: Guillem Jover <guillem@debian.org>
Date: Wed, 3 Jan 2018 01:57:30 +0100
Subject: dpkg-buildpackage: Do not set DEB_GAIN_ROOT_CMD on
 <implementations-keywords>

The specification is clear on this, and we should not be setting this
variable when the values are different to "no" and "binary-targets".
---
 scripts/dpkg-buildpackage.pl | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'scripts')

diff --git a/scripts/dpkg-buildpackage.pl b/scripts/dpkg-buildpackage.pl
index 4b3e2b9d6..d790b3177 100755
--- a/scripts/dpkg-buildpackage.pl
+++ b/scripts/dpkg-buildpackage.pl
@@ -723,6 +723,11 @@ sub parse_rules_requires_root {
         $ENV{DEB_GAIN_ROOT_CMD} = join ' ', @rootcommand;
         # XXX: For ephemeral backwards compatibility.
         $ENV{DPKG_GAIN_ROOT_CMD} = $ENV{DEB_GAIN_ROOT_CMD};
+    } else {
+        # We should not provide the variable otherwise.
+        delete $ENV{DEB_GAIN_ROOT_CMD};
+        # XXX: For ephemeral backwards compatibility.
+        delete $ENV{DPKG_GAIN_ROOT_CMD};
     }
 
     return %rrr;
-- 
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