Tukukkk

After updateting from boost 1.58 to 1.61, linking fails with the following error:

In function `bool boost::regex_search<__gnu_cxx::__normal_iterator<char const*, std::string>, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::string> > >, char, boost::regex_traits<char, boost::cpp_regex_traits<char> > >(__gnu_cxx::__normal_iterator<char const*, std::string>, __gnu_cxx::__normal_iterator<char const*, std::string>, boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::string>, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::string> > > >&, boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > > const&, boost::regex_constants::_match_flags, __gnu_cxx::__normal_iterator<char const*, std::string>)':

/usr/include/boost/regex/v4/regex_search.hpp:56: undefined reference to `boost::re_detail_106100::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::string>, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::string> > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::find()'

CMakeFiles/havoc.dir/src/helpers.cpp.o: In function `boost::re_detail_106100::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::string>, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::string> > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::perl_matcher(__gnu_cxx::__normal_iterator<char const*, std::string>, __gnu_cxx::__normal_iterator<char const*, std::string>, boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::string>, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::string> > > >&, boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > > const&, boost::regex_constants::_match_flags, __gnu_cxx::__normal_iterator<char const*, std::string>)':

/usr/include/boost/regex/v4/perl_matcher.hpp:382: undefined reference to `boost::re_detail_106100::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::string>, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::string> > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::construct_init(boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > > const&, boost::regex_constants::_match_flags)'

I use cmake to link against boost like this:

find_package(Boost COMPONENTS chrono system filesystem thread regex random REQUIRED)    

target_link_libraries (myprog

      ${Boost_REGEX_LIBRARY}

)

I searched the changelog of boost but could not find anything specific that might cause the cmake linking to fail. Like I said: it works perfectly with 1.58.

Is libboost-regex1.61.0 broken or did the linking change somehow?

Update: 14.11.2016:
The Changelog of Boost shows that the namespace was renamed from "re_detail" to "BOOST_REGEX_DETAIL_NS".

I use Kali Rolloing release and it seems to me that the installedboost lib 1.61 does not match the boost 1.61 source. I will try to install the lib manually and check if this solves the problem.

I updated to 1.61 and afterwards to 1.62. To problem remains.
I checked my linker command and ensured that "-lboost_regex" is present at the end of the line.
I can only think of two problems:

1. My system has an old boost_regex lib somewhere an cmake uses it to link despite the fact that cmake announces using 1.62


2. The boost_regex lib in Kali is outdated while the header are updated.

I have checked my libraries and they seem to look good:

newgen@kali:/usr/lib/i386-linux-gnu$ ls -al | grep boost | grep regex

-rw-r--r--   1 root   root    2390702 Nov 12 19:46 libboost_regex.a

lrwxrwxrwx   1 root   root         24 Nov 12 19:46 libboost_regex.so -> libboost_regex.so.1.62.0

    -rw-r--r--   1 root   root    1107284 Nov 12 19:46 libboost_regex.so.1.62.0

Update: 09.12.2016:
I am no export on shared objects but a hint from the boost developers points to a mess up in the packaging. I tried to look into the current library and I would guess that the lib is v1.58 while the headers are v1.62.

/usr/lib/i386-linux-gnu$ nm --dynamic libboost_regex.so.1.62.0 | grep   regex_search



0005d4e0 W _ZN5boost12regex_searchINS_16re_detail_10620016mapfile_iteratorESaINS_9sub_matchIS2_EEEcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEEEbT_SA_RNS_13match_resultsISA_T0_EERKNS_11basic_regexIT1_T2_EENS_15regex_constants12_match_flagsE

Opened a Bug in the Kali Linux Bug Tracker:
https://bugs.kali.org/view.php?id=3765

The boost 1.61 (and higher) are compiled with newer compilers, which use the _GLIBCXX_USE_CXX11_ABI=1 .. heh ABI. Meaning that for -std=c++11 std::basic_string... becomes std::__cxx11::basic_string... (and likewise for std::list; see the gcc Dual ABI documentation.

Since your linker error claims there is a missing symbol that contains std::string (which is short for std::basic_string<char,std::char_traits<char>,std::allocator<char>>), you are either compiling with a compiler that is too old and uses ABI 0, or you are even compiling explicitly with -D_GLIBCXX_USE_CXX11_ABI=0.

Either way, adding -D_GLIBCXX_USE_CXX11_ABI=1 to your CXXFLAGS should solve the problem.