On 16.06.2016 16:27, Blair Climenhaga wrote:
Hello Leon,

Thanks for your quick response! I'm not sure if I understand what you mean (my fault not yours). I typed "-lboost_system" and "-lboost_thread" into the command line of the terminal however both types it returned the error message "command not found". I assume you mean to add these lines to the .bashrc or to the install file for openfoam. Is this correct?
No, I meant append them as the command line parameters to the command you use to (compile and) link whatever program you are building. As the simplest example:

    $ g++ a,cpp -o a -lboost_system -lboost_thread

or perhaps:

    $ g++ a,cpp -o a -L /usr/local/lib -lboost_system-mt -lboost_thread-mt

as I have to on my Mac where brew Boost gets installed in /usr/local. I'm also not sure whether Ubuntu installs both -mt and non-mt (multi-threading support) variants.

Cheers,

Leon

You are correct that the boost files are downloaded to the /usr/lib, however searching through the lib directory I find that the most similar libraries to those discussed are the "libboost_system.so.1.54.0" and "libboost_thread.so.1.54.0" files, are these the correct files? Again thank you for all your help, I really appreciate it.

All the best,
Blair Climenhaga

To: boost-users@lists.boost.org
From: leon@digiverse.si
Date: Thu, 16 Jun 2016 16:07:32 +0200
Subject: Re: [Boost-users] Undefined Reference to 'boost::system::generic_category()'

On 16.06.2016 16:00, Blair Climenhaga wrote:
Thanks Maarten,

How would I go about linking -lboost_system and -lboost_thread? I'm sorry, I am just starting out with Linux. I should say that I am using Ubuntu 14.04. Thanks in advance for any and all help you can provide.

Exactly the way you've written: add "-lboost_system -lboost_thread" to the command line. If you installed Ubuntu's boost-all-dev package the libraries should already be under /usr/li where linker will find t hem;; if not add -L<path-to-directory-containing-libraries> to tell the linker where the libraries are.

Cheers,

Leon


All the best,
Blair Climenhaga


From: maarten@de-vri.es
Date: Wed, 15 Jun 2016 22:29:16 +0200
To: boost-users@lists.boost.org
Subject: Re: [Boost-users] Undefined Reference to 'boost::system::generic_category()'



On 15 June 2016 at 21:24, Blair Climenhaga <blairclimenhaga@hotmail.ca> wrote:
Hello everyone,

I have been attempting to install OpenFOAM however the boost library has been giving me trouble, most recently reading out these error during OpenFOAM installation.

undefined reference to `boost::system::generic_category()'
undefined reference to `boost::system::system_category()'

You need to link with -lboost_system (or equivalent for whatever name your platform uses)​. Most libraries in boost are header only, but that is not true for everything. Boost system is one of the libraries that needs a compiled library.

 
undefined reference to `boost::detail::set_tss_data(void const*, boost::shared_ptr<boost::detail::tss_cleanup_function>, void*, bool)'
undefined reference to `boost::detail::get_tss_data(void const*)'


Similar problem, link with -lboost_thread​

Regards,
​Maarten


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