[Bug report (and fix)] Thread-safety in Standard_GUID

Standard_GUID.cxx unnecessarily used static variables breaking thread-safety (even thread re-entrancy).
The fix with a regression test is enclosed. It can be applied to 6.5.0, 6.5.1, 6.5.2.

Forum supervisor's picture

Dear Roman,
I would like to inform you that the posted problem has been checked and confirmed.
The corresponding issue with ID = 22899 has been registered.
Later you may check if the issue is resolved by checking references to the specified ID in OCCT Release Notes. The analysis of the issue will take some time depending on our technical capability and availability of resources.
Thanks for your contribution.