Add test whether the ICEauthority file exists in the folder

specified by the XDG_RUNTIME_DIR variable.

This relates to bug 3027.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 187b4578d0)

kiosktool/kioskrun.cpp

@@ -749,9 +749,22 @@ KioskRun::setupRuntimeEnv()
    TDEStandardDirs::makeDir(cacheDir);
    deleteDir(m_homeDir+"/.qt");
    ::unlink(TQFile::encodeName(m_homeDir+".tderc"));
-   
 
-   TQString iceAuth = TQString("%1/.ICEauthority").arg(TQDir::homeDirPath());
+   TQString iceFileBase = "ICEauthority";
+   TQString iceAuth;
+   if (getenv("XDG_RUNTIME_DIR"))
+   {
+      iceAuth = TQString("%1/%2").arg(getenv("XDG_RUNTIME_DIR")).arg(iceFileBase);
+      TQFileInfo fi(iceAuth);
+      if (!fi.exists())
+      {
+         iceAuth = TQString::null;
+      }
+   }
+   if (iceAuth.isEmpty())
+   {
+      iceAuth = TQString("%1/.%2").arg(TQDir::homeDirPath()).arg(iceFileBase);
+   }
    setenv("ICEAUTHORITY", TQFile::encodeName(iceAuth), 0); // Don't overwrite existing setting
 
    TQString xAuth = TQString("%1/.Xauthority").arg(TQDir::homeDirPath());