Re: [Boost-users] NEWBIE: Undefined references: How do I find the library that resolves an undefined reference - Expanded with log example and hope for a general solution

Thanks Richard and Andy for the timely response! Andy's answers provides the perfect example of my dilemma. When Andy said to check the MSDN documentation for ms742213, I quickly found that I needed the Ws2_32.lib library, which I was able to solve my issue. However, I also have the following: 1. boost::log::add_log_file(...) with a sinks::file::rotation_at_time_point(...) 2. boost::random::random_device range; I made a guess with the log and added boost_log_setup_mgw48-mt-d-1_61 and boost_log_ mgw48-mt-d-1_61, but these libraries didn't resolve my issue. When I check the boost documentation (I realize that many of the boost additions just require header files, which the examples are careful to specify. I figure this must require a library because I am getting an undefined error.), there were many mentions of a library, but I couldn't find where the name of the library was specified! So I hope there is a general way to determine the name of the boost library so I do not need to keeping asking about particular undefined errors. In the past, I have been able to google the undefined error and find the library reference, but Thanks again for all of your help! -----Original Message----- On 1/24/2017 3:44 PM, Richard Hodges wrote:

That would be the winsock library.

https://msdn.microsoft.com/en-us/library/ms740673.aspx

On 24 January 2017 at 20:33, JENNINGS, LYNN M NH-03 USAF AFMC 517 SMXS/MXDPB wrote:

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NEWBIE question: Undefined references: How do I find the library that resolves an undefined reference. For example, the output for the gcc linker running in MinGW shows:

C:/boost/boost/asio/detail/impl/winsock_init.ipp:39: Undefined reference to `WSAStartup_at_8'

I have googled the documentation a number of ways, but I cannot find the library that will resolve this error. I am sure that this is a common problem. Please point me to the documentation so I can fix this and the undefined references.

Thanks!

In the future, you can check Microsoft's documentation [1] for info on their functions. I searched for "WSAStartup", and found [2]. At the bottom of that page is a "Requirements" box, which tells you the library it's in. Andy 1. http://msdn.microsoft.com 2. https://msdn.microsoft.com/en-us/library/windows/desktop/ms742213(v=vs.85).a...