thrift concurrency_test with mingw64 fails

[Mario Emmenlauer]

Dear all,

I can now successfully build thrift trunk CPP library with mingw64
on MSYS2. Also most tests work, except for concurrency_test, that
fails with segfault:

      Start 17: concurrency_test

17/20 Test #17: concurrency_test .................***Exception: SegFault 99.17 
sec


Can somebody help me what's causing this or how to debug it?

Thanks and all the best,

    Mario