Rework and fix commit 4d90cc61

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit 54b5898649)

tdeio/tdeio/job.cpp

@@ -114,9 +114,18 @@ public:
     unsigned long m_userTimestamp;
 };
 
-static TQObject *__job_root_obj = new TQObject(0, "jobroot");
+static TQObject *__job_root_obj = nullptr;
 
-Job::Job(bool showProgressInfo) : TQObject(__job_root_obj, "job"), m_error(0), m_percent(0)
+static TQObject* __getJobRoot()
+{
+    if (!__job_root_obj)
+    {
+        __job_root_obj = new TQObject(0, "jobroot");
+    }
+    return __job_root_obj;
+}
+
+Job::Job(bool showProgressInfo) : TQObject(__getJobRoot(), "job"), m_error(0), m_percent(0)
    , m_progressId(0), m_speedTimer(0), d( new JobPrivate )
 {
     // All jobs delete themselves after emiting 'result'.