JS>
  > What is an _optlink?
JS>

  It's a function calling convention that is proprietary to IBM's
  compilers.

JS>
  > Is this required for beginthread?
JS>

  Only if you use IBM's compilers.  Other vendor's C++ compilers, such
  as those from Borland, MetaWare, and Watcom, do not require thread
  functions to be marked with proprietary calling conventions.

JS>
  >                                  Do I need to use multithreaded
  > libraries?
JS>

  If you are using multiple threads, yes.

  > JdeBP <
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