Re: [Boost-users] Trouble linking with boost::program_options on OSX 10.7

Subject: Re: [Boost-users] Trouble linking with boost::program_options on OSX 10.7
From: Vladimir Prus (ghost_at_[hidden])
Date: 2012-06-25 01:59:21

On 22.06.2012 20:45, Jürgen Simon wrote:
> Hi,
>
> I have boost 1.49 installed through homebrew on OSX 10.7. I'm attempting to
> compile a program making use of boost::program_options. I get the following
> error:
>
> Undefined symbols for architecture x86_64:
>   "boost::program_options::detail::cmdline::get_canonical_option_prefix()",
> referenced from:
>       boost::program_options::basic_command_line_parser<char>::run() in
> meanshift_clustering.o
> ld: symbol(s) not found for architecture x86_64
> clang: error: linker command failed with exit code 1 (use -v to see
> invocation)
>
> I clearly remember that this used to compile in the past. In the meantime I
> had uninstalled and re-installed boost a few times. I double-checked the
> invocation though, the paths are correct:
>
>
> Ld Debug/meanshift_clustering normal x86_64
>     cd myproject
>     setenv MACOSX_DEPLOYMENT_TARGET 10.7
>
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++
> -arch x86_64
> -isysroot
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk
> -Lmyproject/Debug -Fmyproject/Debug
> -filelist
> myproject/myproject.build/Debug/meanshift_clustering.build/Objects-normal/x86_64/meanshift_clustering.LinkFileList
> -mmacosx-version-min=10.7
> -Wl,-search_paths_first -Wl,
> -headerpad_max_install_names myproject/Debug/libmyproject.dylib
> /usr/local/lib/libradolan.dylib /usr/local/lib/libnetcdf_c++.dylib
> /usr/local/lib/libnetcdf.dylib /usr/local/lib/libboost_system-mt.dylib
> /usr/local/lib/libboost_program_options-mt.dylib
> /usr/local/lib/libboost_thread-mt.dylib /usr/local/lib/libhdf5.dylib
> /usr/local/lib/libhdf5_hl.dylib -o myproject/Debug/meanshift_clustering
>
> I checked with nm if the symbol is in
> /usr/local/lib/libboost_program_options-mt.dylib and it is not. This makes
> me think it's some kind of problem with boost. I do not reference this
> symbol in my code directly, anywhere.

Hi Jürgen,

are you sure you are now using trunk header files, while linking to 1.49 library? To verify, you
can compile meanshift_clustering.o with the -save-temps options, and look at .ii file.

HTH,
Volodya