Hi Alex, I still got some of warning C4273: inconsistent dll linkage like the following ---------------------- 1>  thread.cpp1>..\Boost\thread.cpp(186): warning C4273: 'boost::thread::thread' : inconsistent dll linkage1>          C:\3rdParty\BOOST_LIBRARY\boost-1.47.0\boost/thread/detail/thread.hpp(154) : see previous definition of '{ctor}'1>..\Boost\thread.cpp(189): warning C4273: 'boost::thread::start_thread' : inconsistent dll linkage1>          C:\3rdParty\BOOST_LIBRARY\boost-1.47.0\boost/thread/detail/thread.hpp(120) : see previous definition of 'start_thread'1>..\Boost\thread.cpp(200): warning C4273: 'boost::thread::thread' : inconsistent dll linkage1>          C:\3rdParty\BOOST_LIBRARY\boost-1.47.0\boost/thread/detail/thread.hpp(122) : see previous definition of '{ctor}'1>..\Boost\thread.cpp(242): warning C4273: 'boost::thread::~thread' : inconsistent dll linkage1>          C:\3rdParty\BOOST_LIBRARY\boost-1.47.0\boost/thread/detail/thread.hpp(155) : see previous definition of '{dtor}' -------------- BTW, *after* I built boost thread libraries, I set #define BOOST_THREAD_DYN_LINK in boost-1.47.0/boost/boost/config/user.hpp, should I set  BOOST_THREAD_DYN_LINK in this file *BEFORE* building boost thread libraries? Is it correct? Did I do something wrong? Thank you for your great help! Yan --- On Fri, 11/18/11, code wrote: From: code Subject: RE: [Boost-users] some warning C4273: inconsistent dll linkage To: "Alex Perry" Date: Friday, November 18, 2011, 1:12 PM Thank you so much, Alex !! I understand better. Yan --- On Fri, 11/18/11, Alex Perry wrote: From: Alex Perry Subject: RE: [Boost-users] some warning C4273: inconsistent dll linkage To: "code" Date: Friday, November 18, 2011, 9:43 AM Hi Yan,   Probably not : - )   It actually depends on your toolset / platform that you are using.   #define BOOST_THREAD_NO_LIB like its version for all the boost libraries #BOOST_ALL_NO_LIB switches of the automagical linking of libraries for boost.   Personally on platforms that support this (msvc, borland etc) I find it really useful – give your project the libdir of the boost libs and let the headers figure out what the name of the lib it wants to link to is (in fact I liked it so much I ended up nicking the boost naming conventions and using them for all our internal company library code coz it just made life so much easier – no more worrying whether dependent lib was compiled with /MD, /MDd or /MT etc which is such a pain with windows based compilers – especially when using dll’s rather than static libs)   The NO_LIB define is there to avoid this automatic naming (ie the #pragma comment(lib,) the header adds to your code if supported by your toolset)  and so it  lets you name the lib you want to link to manually in your makefile / solution as per non boost libs (or when using gcc  … ). For example in some x-platform code if you wanted the makefile the same for linux/windows (using cygwin or some such).   Alex       From: code [mailto:b4code@yahoo.com] Sent: 18 November 2011 16:07 To: boost-users@lists.boost.org; Alex Perry Cc: b4code@yahoo.com Subject: Re: [Boost-users] some warning C4273: inconsistent dll linkage   Hi Alex, Thank you so much for the great advice. When I set #define BOOST_THREAD_DYN_LINK in my code, do I need to set #define BOOST_THREAD_NO_LIB at the same time? Thank you so much again! Yan --- On Fri, 11/18/11, Alex Perry wrote: From: Alex Perry Subject: [Boost-users] some warning C4273: inconsistent dll linkage To: "boost-users@lists.boost.org" Cc: "b4code@yahoo.com" Date: Friday, November 18, 2011, 1:11 AM On Thu, 17 Nov 2011 12:07:57 -0800 (PST) code wrote:-

Hi Boost Users,

When I compiled and linked my projects with Boost libraries, I got the

following warnings

...snip...

I want to link Boost.thread dll dynamically and other Boost libraries statically.

If I set #define BOOST_ALL_DYN_LINK, I could not generate

...snip... I didn't see any answer to this but apologies if its already been answered. #define BOOST_ALL_DYN_LINK Is for use within your own consuming code - use the bjam --link option to control which version of boost libraries are built eg in boost root do:- bjam variant=debug,release threading=multi link=shared stage --with-thread which would build boost-thread as dll (bjam --help to get more info on options) then: #define BOOST_THREAD_DYN_LINK In your code would use the dll version of boost.thread (any other boost libs would still be looking for static versions) HTH Alex