Error with BOOST_FILESYSTEM_VERSION about vision_visp

[bchretien]

The only API conflicts I had were with external_file_string():

/tmp/hydro/visp_tracker/src/visp_tracker/src/libvisp_tracker/file.cpp: In function ‘bool makeModelFile(boost::filesystem::ofstream&, std::string&)’:
/tmp/hydro/visp_tracker/src/visp_tracker/src/libvisp_tracker/file.cpp:77:24: error: ‘class boost::filesystem::path’ has no member named ‘external_file_string’
   fullModelPath = path.external_file_string();

With Boost Filesystem V3:
external_file_string() ---> native()

[bchretien]

A patch that works for Arch: bchretien@848362b

This may also be valid for Fedora (cc @cottsay).

[thomas-moulard]

After checking Groovy does not support Ubuntu 10.04 which was our last reason to continue supporting Boost 1.40 (i.e. without the v3) so we can accept this patch.

Can you open a PR?

[thomas-moulard]

Actually, you can get a patch by just adding .patch to the URL so I applied it by myself :)

Thanks!

[bchretien]

@thomas-moulard thanks for the GitHub trick, I didn't even know that!