From bcee5c5dc430a468b642e4d1ca314ceb7015038b Mon Sep 17 00:00:00 2001
From: Eike Ziller <eike.ziller@qt.io>
Date: Thu, 6 Jan 2022 10:58:24 +0100
Subject: [PATCH] ClangCodeModel: Fix performance regression of code completion

Broke when converting the code to QtcProcess.

Amends 8724a4efbb065d4a146cb35929870d3715132127

Fixes: QTCREATORBUG-26829
Change-Id: I14b4bd9ddc035c1c837231cb6436d9e8e203d5cd
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
Reviewed-by: hjk <hjk@qt.io>
---
 src/libs/clangsupport/processcreator.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/libs/clangsupport/processcreator.cpp b/src/libs/clangsupport/processcreator.cpp
index c0b9393607d..0394aea1f1a 100644
--- a/src/libs/clangsupport/processcreator.cpp
+++ b/src/libs/clangsupport/processcreator.cpp
@@ -173,15 +173,15 @@ Environment ProcessCreator::processEnvironment() const
 
     if (temporaryDirectory().isValid()) {
         const QString temporaryDirectoryPath = temporaryDirectory().path();
-        processEnvironment.appendOrSet("TMPDIR", temporaryDirectoryPath);
-        processEnvironment.appendOrSet("TMP", temporaryDirectoryPath);
-        processEnvironment.appendOrSet("TEMP", temporaryDirectoryPath);
+        processEnvironment.set("TMPDIR", temporaryDirectoryPath);
+        processEnvironment.set("TMP", temporaryDirectoryPath);
+        processEnvironment.set("TEMP", temporaryDirectoryPath);
     }
 
     const Environment &env = m_environment;
     for (auto it = env.constBegin(); it != env.constEnd(); ++it) {
         if (env.isEnabled(it))
-            processEnvironment.appendOrSet(env.key(it), env.expandedValueForKey(env.key(it)));
+            processEnvironment.set(env.key(it), env.expandedValueForKey(env.key(it)));
     }
 
     return processEnvironment;