2 files changed, 70 insertions, 1 deletions

diff --git a/src/corelib/plugin/qpluginloader.cpp b/src/corelib/plugin/qpluginloader.cpp
index a911f1d..8d1c0f7 100644
--- a/src/corelib/plugin/qpluginloader.cpp
+++ b/src/corelib/plugin/qpluginloader.cpp
@@ -46,6 +46,7 @@
 #include <qfileinfo.h>
 #include "qlibrary_p.h"
 #include "qdebug.h"
+#include "qdir.h"
 
 #ifndef QT_NO_LIBRARY
 
@@ -301,6 +302,24 @@ void QPluginLoader::setFileName(const QString &fileName)
     }
 
     QString fn = fi.canonicalFilePath();
+    // If not found directly, check also all the available drives
+    if (!fn.length()) {
+        QString stubPath(fi.fileName().length() ? fi.absoluteFilePath() : QString());
+        if (stubPath.length() > 1) {
+            if (stubPath.at(1).toAscii() == ':')
+                stubPath.remove(0,2);
+            QFileInfoList driveList(QDir::drives());
+            foreach(const QFileInfo& drive, driveList) {
+                QString testFilePath(drive.absolutePath() + stubPath);
+                testFilePath = QDir::cleanPath(testFilePath);            
+                if (QFile::exists(testFilePath)) {
+                    fn = testFilePath;
+                    break;
+                }
+            }
+        }
+    }
+    
 #else
     QString fn = QFileInfo(fileName).canonicalFilePath();
 #endif
diff --git a/tests/auto/qpluginloader/tst_qpluginloader.cpp b/tests/auto/qpluginloader/tst_qpluginloader.cpp
index 20ca997..3b2cb66 100644
--- a/tests/auto/qpluginloader/tst_qpluginloader.cpp
+++ b/tests/auto/qpluginloader/tst_qpluginloader.cpp
@@ -122,7 +122,7 @@ private slots:
     void errorString();
     void loadHints();
     void deleteinstanceOnUnload();
-
+    void checkingStubsFromDifferentDrives();
 };
 
 tst_QPluginLoader::tst_QPluginLoader()
@@ -297,6 +297,56 @@ void tst_QPluginLoader::deleteinstanceOnUnload()
     }
 }
 
+void tst_QPluginLoader::checkingStubsFromDifferentDrives()
+{
+#if defined(Q_OS_SYMBIAN)
+
+    // This test needs C-drive + some additional drive (driveForStubs)
+
+    const QString driveForStubs("E:/");// != "C:/" 
+    const QString stubDir("system/temp/stubtest/");
+    const QString stubName("dummyStub.qtplugin");
+    const QString fullStubFileName(stubDir + stubName);
+    QDir dir(driveForStubs);
+    bool test1(false); bool test2(false);
+    
+    // initial clean up
+    QFile::remove(driveForStubs + fullStubFileName);
+    dir.rmdir(driveForStubs + stubDir);
+
+    // create a stub dir and do stub drive check
+    if (!dir.mkpath(stubDir))
+        QSKIP("Required drive not available for this test", SkipSingle);
+    
+    {// test without stub, should not be found
+    QPluginLoader loader("C:/" + fullStubFileName);
+    test1 = !loader.fileName().length();
+    }    
+    
+    // create a stub to defined drive
+    QFile tempFile(driveForStubs + fullStubFileName);
+    tempFile.open(QIODevice::ReadWrite);
+    QFileInfo fileInfo(tempFile);
+    
+    {// now should be found even tried to find from C:   
+    QPluginLoader loader("C:/" + fullStubFileName);
+    test2 = (loader.fileName() == fileInfo.absoluteFilePath());
+    }
+    
+    // clean up
+    tempFile.close();
+    if (!QFile::remove(driveForStubs + fullStubFileName))
+        QWARN("Could not remove stub file");
+    if (!dir.rmdir(driveForStubs + stubDir))
+        QWARN("Could not remove stub directory");
+
+    // test after cleanup
+    QVERIFY(test1);
+    QVERIFY(test2);
+    
+#endif//Q_OS_SYMBIAN
+}
+
 QTEST_APPLESS_MAIN(tst_QPluginLoader)
 #include "tst_qpluginloader.moc"