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    346910c6
    Clear the FPU status word before loading the control word from the · 346910c6
    rtoy authored
    sigcontext.
    
    This is a workaround for an issue on x86/darwin where loading of the
    control word enabling the invalid operation exception would cause that
    exception because the status word had that exception.  Not sure why
    this is needed or why the invalid operation exception was set.  It was
    happening in a call run-program while concatenating the files for the
    hemlock library.
    346910c6
    History
    Clear the FPU status word before loading the control word from the
    rtoy authored
    sigcontext.
    
    This is a workaround for an issue on x86/darwin where loading of the
    control word enabling the invalid operation exception would cause that
    exception because the status word had that exception.  Not sure why
    this is needed or why the invalid operation exception was set.  It was
    happening in a call run-program while concatenating the files for the
    hemlock library.