Index: qtquick1-opensource-src-5.5.1/src/declarative/qml/qdeclarativeimport.cpp
===================================================================
--- qtquick1-opensource-src-5.5.1.orig/src/declarative/qml/qdeclarativeimport.cpp
+++ qtquick1-opensource-src-5.5.1/src/declarative/qml/qdeclarativeimport.cpp
@@ -725,6 +725,15 @@ QDeclarativeImportDatabase::QDeclarative
 
     addImportPath(installImportsPath);
 
+    // Add library paths derived from NIX_PROFILES.
+    const QByteArrayList profiles = qgetenv("NIX_PROFILES").split(' ');
+    const QString importdir = QString::fromLatin1("/lib/qt5/imports");
+    Q_FOREACH (const QByteArray &profile, profiles) {
+        if (!profile.isEmpty()) {
+            addImportPath(QFile::decodeName(profile) + importdir);
+        }
+    }
+
     // env import paths
     QByteArray envImportPath = qgetenv("QML_IMPORT_PATH");
     if (!envImportPath.isEmpty()) {