The gcc documentation for -mthreads says:
-mthreads
Support thread-safe exception handling on MinGW. Programs
that rely on thread-safe exception handling must compile and
link all code with the -mthreads option. When compiling,
-mthreads defines -D_MT; when linking, it links in a special
thread helper library -lmingwthrd which cleans up per-thread
exception-handling data.
But, AFAIK, -mthreads is unnecesary nowadays and mingwthrd is just a
stub. Is this correct?
I'm planning to submit a patch to gcc for obsoleting the switch.
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