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Editorial Team
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Asked: 2026-05-12T05:05:59+00:00

I’m just getting started with Boost for the first time, details: I’m using Visual

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I’m just getting started with Boost for the first time, details:

  1. I’m using Visual Studio 2008 SP1
  2. I’m doing an x64 Build
  3. I’m using boost::asio only (and any dependencies it has)

My code now compiles, and I pointed my project at the boost libraries (after having built x64 libs) and got past simple issues, now I am facing a linker error:

2>BaseWebServer.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::get_system_category(void)" (?get_system_category@system@boost@@YAAEBVerror_category@12@XZ)
2>BaseWebServer.obj : error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::get_generic_category(void)" (?get_generic_category@system@boost@@YAAEBVerror_category@12@XZ)

any ideas?

I added this define: #define BOOST_LIB_DIAGNOSTIC

And now in my output I see this:

1>Linking to lib file: libboost_system-vc90-mt-1_38.lib
1>Linking to lib file: libboost_date_time-vc90-mt-1_38.lib
1>Linking to lib file: libboost_regex-vc90-mt-1_38.lib

which seems to indicate it is infact linking in the system lib.

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1 Answer

  1. Editorial Team

    I solved the problem. I had built 32-bit libraries when I had intended to build 64-bit libraries. I fixed up my build statement, and built 64-bit libraries, and now it works.

    Here is my bjam command line:

    C:\Program Files (x86)\boost\boost_1_38>bjam --build-dir=c:\boost --build-type=complete --toolset=msvc-9.0 address-model=64 architecture=x86 --with-system
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