We sell HP-UX 9000 Unix boxes, below is one that we commonly sell to C++ developers. Its a good Unix platform for the C compiler. You have to purchase the software from HP, that will run you $966.00 per CPU core.
No HP-UX license is needed if you buy the compilers for HP 9000 workstations.
www.ebay.com/itm/380371481642
Jesse
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