I wrote a serial port static library using boost::asio. I'm trying to use this library from another project I'm building as a dll, but this second project fails to link: it wants to link with Boost's sytem library. I used PIMPL to remove all boost #includes from my class header, and also tried setting Visual Studio's Link Library Dependencies option set to Yes in my static library. Neither approach worked. I know I can solve this by adding the boost binary directory to the library directories for my dll project, but I'd like to avoid that. The way I see it, only my static library should have a Boost link dependency. I'm using Visual Studio 2012, targetting to Windows XP (v110_xp toolset), and Boost 1.53.0. I asked about this at Stack Overflow if anyone's interested: http://stackoverflow.com/questions/21435666/avoid-link-dependency-with-boost -- *Darío Eduardo Ramos* Meditech S.A. www.meditech.com.ar (+54) 01147603300, Interno 31 Av. Julio A. Roca 3456 Florida Oeste, Bs.As. Argentina