Re: [Boost-bugs] [Boost C++ Libraries] #9848: flyweight: hidden dependency on pthread

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #9848: flyweight: hidden dependency on pthread
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-04-07 16:38:42

#9848: flyweight: hidden dependency on pthread
-------------------------------+-----------------------
  Reporter:  akim@…            |      Owner:  joaquin
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  flyweight
   Version:  Boost 1.55.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+-----------------------

Comment (by joaquin):

 Hi,

 The dependency stems from the usage of
 `boost::flyweights::simple_locking`:

 http://www.boost.org/libs/flyweight/doc/reference/locking.html#simple_locking


 which takes advantage of the synchronization mechanisms available on the
 target environment. Your !ArchLinux GCC distribution is configured in such
 a way that `BOOST_HAS_PTHREADS` is defined hence the need to link Pthreads
 with -lpthread. If you don't want to do the linking because your app is
 single-thread, you can either

 * use `boost::flyweights::no_locking` as the locking policy or
 * globally set the `BOOST_DISABLE_THREADS` macro.

 Please report back whether this clarifies the issue for you. Best,

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9848#comment:1>
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