Re: [Boost-bugs] [Boost C++ Libraries] #6960: unnecessary dependency on boost.date_time when building with separate compilation

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #6960: unnecessary dependency on boost.date_time when building with separate compilation
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-06-03 09:59:22

#6960: unnecessary dependency on boost.date_time when building with separate
compilation
-------------------------------+--------------------------------------------
  Reporter:  arvid@…           |       Owner:  chris_kohlhoff
      Type:  Bugs              |      Status:  closed        
 Milestone:  To Be Determined  |   Component:  asio          
   Version:  Boost 1.46.0      |    Severity:  Problem       
Resolution:  wontfix           |    Keywords:                
-------------------------------+--------------------------------------------
Changes (by chris_kohlhoff):

  * status:  new => closed
  * resolution:  => wontfix

Comment:

 Is that a regression in boost.date_time? I believe it used to work without
 needing a library for these uses.

 The rationale for the timer_queue<ptime> specialisation is to minimise
 code duplication across object files / shared libraries. Removing it and
 relying on automatic template instantiation defeats that.

 However you can consider asio/impl/src.hpp as simply representing the
 default case for separate compilation. You can roll your own file that
 includes a minimal set of .ipp files as needed to resolve link
 dependencies. In more recent boost versions this would allow you to leave
 out timer_queue_ptime.ipp altogether.

 Note that a future version of asio will allow boost.date_time use to be
 disabled completely.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6960#comment:1>
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