title: Building Boost on OpenVMs
body: <p>I’m hoping  to port an application to open vms using HP C++7.3, but at the minute just trying out a few examples to establish if it's a potential way forward but a bit stuck.  Being completely new to open vms it's being a lot of fun so far. </p>
  
  <p>For starters I've not got very far building boost as a whole, after some googling I found a few mentions of people having dcl scripts to build boost but no actual scripts.   I don’t suppose anyone has any or can pint me to some.  I ‘only’ need asio and threading. </p>
  
  <p>Currently I’m just trying to compile the asio chat examples.  And as I said I’m completely new to VMS and the compiler, I managed to get a few things to compile but now get a  “could not open source file "sys/select.h"’, a bit of googling suggests I may need to have an HP porting library installed or maybe I’m just missing an prepocessor directive to include the correct code, can’t see anything obvious in socket_types.hpp to set?</p>
  
  <p>Any pointers in the right general direction would be gratefully appreciated.</p>