From efcd4d6f866d731a930b48a20f68b4bbee9146fe Mon Sep 17 00:00:00 2001
From: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Date: Fri, 11 Dec 2015 13:29:01 +0100
Subject: [PATCH] ensure that we don't leak QT_TOOL_ENV beyond qt_tool.prf

the variable is later re-used by qtPrepareTool(), so the tools used to
build the tool would get excess variables passed.

Change-Id: Ib1bdd2211b4a8615e2be9ba0310822f373f5efb0
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
---
 mkspecs/features/qt_tool.prf | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mkspecs/features/qt_tool.prf b/mkspecs/features/qt_tool.prf
index 3f0301a2929..839c3d6b887 100644
--- a/mkspecs/features/qt_tool.prf
+++ b/mkspecs/features/qt_tool.prf
@@ -64,3 +64,5 @@ DEFINES *= QT_USE_QSTRINGBUILDER
         cache(QT_TOOL.$${MODULE}.$$var, transient)
 
 }
+# The variable is re-used by qtPrepareTool(), and we really don't want that.
+unset(QT_TOOL_ENV)