From 09ff1cb650a8084fce51f0005c446ea9215890d3 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Tue, 7 Jul 2020 13:36:49 -0400
Subject: cmCTest: Explicitly specify '.tmp' extension on in-progress log files

Do not depend on `cmGeneratedFileStream` to have this default.
---
 Source/cmCTest.cxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Source/cmCTest.cxx b/Source/cmCTest.cxx
index bca7540..4254e2e 100644
--- a/Source/cmCTest.cxx
+++ b/Source/cmCTest.cxx
@@ -841,6 +841,7 @@ bool cmCTest::OpenOutputFile(const std::string& path, const std::string& name,
     }
   }
   std::string filename = testingDir + "/" + name;
+  stream.SetTempExt("tmp");
   stream.Open(filename);
   if (!stream) {
     cmCTestLog(this, ERROR_MESSAGE,
-- 
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