From 5a2a70adda7d23160195dfebaf85eaab4774a4e4 Mon Sep 17 00:00:00 2001
From: Christian Kandeler <christian.kandeler@qt.io>
Date: Wed, 29 Jan 2020 13:33:28 +0100
Subject: [PATCH] GCC: Detect ccache executables
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These are not in the system PATH as to not make them the default, but it
still makes sense to auto-detect them.

Fixes: QTCREATORBUG-23473
Change-Id: Ia044bd948a7a338f34f729e77e1365d048e87172
Reviewed-by: Lisandro Damián Nicanor Pérez Meyer <perezmeyer@gmail.com>
Reviewed-by: hjk <hjk@qt.io>
---
 src/plugins/projectexplorer/gcctoolchain.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/plugins/projectexplorer/gcctoolchain.cpp b/src/plugins/projectexplorer/gcctoolchain.cpp
index 1dc211c7c55..ff0e0601662 100644
--- a/src/plugins/projectexplorer/gcctoolchain.cpp
+++ b/src/plugins/projectexplorer/gcctoolchain.cpp
@@ -1093,6 +1093,13 @@ QList<ToolChain *> GccToolChainFactory::autoDetectToolchains(
         searchPaths << gnuSearchPathsFromRegistry();
         searchPaths << atmelSearchPathsFromRegistry();
         searchPaths << renesasRl78SearchPathsFromRegistry();
+        if (HostOsInfo::isAnyUnixHost()) {
+            FilePath ccachePath = FilePath::fromString("/usr/lib/ccache/bin");
+            if (!ccachePath.exists())
+                ccachePath = FilePath::fromString("/usr/lib/ccache");
+            if (ccachePath.exists() && !searchPaths.contains(ccachePath))
+                searchPaths << ccachePath;
+        }
         for (const FilePath &dir : searchPaths) {
             static const QRegularExpression regexp(binaryRegexp);
             QDir binDir(dir.toString());