1 files changed, 16 insertions, 1 deletions
diff --git a/src/lib/buildgraph/buildgraphloader.cpp b/src/lib/buildgraph/buildgraphloader.cpp
index 4d62e55ae..ab3360574 100644
--- a/src/lib/buildgraph/buildgraphloader.cpp
+++ b/src/lib/buildgraph/buildgraphloader.cpp
@@ -179,7 +179,8 @@ void BuildGraphLoader::trackProjectChanges(const SetupProjectParameters &paramet
     // anew.
     bool allProductsPotentiallyChanged = false;
     if (hasBuildSystemFileChanged(buildSystemFiles, buildGraphTimeStamp)
-            || hasEnvironmentChanged(restoredProject)) {
+            || hasEnvironmentChanged(restoredProject)
+            || hasFileExistsResultChanged(restoredProject)) {
         reResolvingNecessary = true;
         allProductsPotentiallyChanged = true;
     }
@@ -285,6 +286,20 @@ bool BuildGraphLoader::hasEnvironmentChanged(const TopLevelProjectConstPtr &rest
     return false;
 }
 
+bool BuildGraphLoader::hasFileExistsResultChanged(const TopLevelProjectConstPtr &restoredProject) const
+{
+    for (QHash<QString, bool>::ConstIterator it = restoredProject->fileExistsResults.constBegin();
+         it != restoredProject->fileExistsResults.constEnd(); ++it) {
+        if (FileInfo(it.key()).exists() != it.value()) {
+            m_logger.qbsDebug() << "Existence check for file '" << it.key()
+                                << " 'changed, must re-resolve project.";
+            return true;
+        }
+    }
+
+    return false;
+}
+
 bool BuildGraphLoader::hasProductFileChanged(const QList<ResolvedProductPtr> &restoredProducts,
         const FileTime &referenceTime, QSet<QString> &remainingBuildSystemFiles,
         QList<ResolvedProductPtr> &changedProducts)