Fix of friend declaration on a template parameter, according to C++11
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@ -285,7 +285,7 @@ protected:
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bool invalidate_all_steps() { return m_state.invalidate_all(PrintObjectBase::cancel_mutex(m_print), PrintObjectBase::cancel_callback(m_print)); }
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bool invalidate_all_steps() { return m_state.invalidate_all(PrintObjectBase::cancel_mutex(m_print), PrintObjectBase::cancel_callback(m_print)); }
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protected:
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protected:
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friend typename PrintType;
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friend PrintType;
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PrintType *m_print;
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PrintType *m_print;
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private:
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private:
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