Boost on Mac os x

[kevinchkin]

Hi Guys,

I am trying to install boost libraries on Snow leopard. I am not sure which folder I have to put the boost_1_43_0 folder into. I am not sure how to link those headers. I've been trying this for an hour now and still can't get it to work. Can some one please guide me? Here is the test program I am trying to run

#include <boost/regex.hpp>
#include <iostream>
#include <string>

int main()
{
        std::string line;
        boost::regex pat( "^Subject: (Re: |Aw: )*(.*)" );

        while (std::cin)
        {   
           std::getline(std::cin, line);
           boost::smatch matches;
           if (boost::regex_match(line, matches, pat))
               std::cout << matches[2] << std::endl;
        }   

        return 0;
}

Command I am using to compile: g++ -I /usr/include/boost_1_43_0 hello.cpp -L/usr/include/boost_1_43_0/stage/lib -o hello

Undefined symbols:
  "boost::re_detail::get_mem_block()", referenced from:
      boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::extend_stack()in cc42xqcF.o
  "boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > >::maybe_assign(boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > const&)", referenced from:
      boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::match_match()in cc42xqcF.o
  "boost::re_detail::get_default_error_string(boost::regex_constants::error_type)", referenced from:
      boost::re_detail::cpp_regex_traits_implementation<char>::error_string(boost::regex_constants::error_type) constin cc42xqcF.o
      boost::re_detail::cpp_regex_traits_implementation<char>::error_string(boost::regex_constants::error_type) constin cc42xqcF.o
  "boost::re_detail::put_mem_block(void*)", referenced from:
      boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::unwind_extra_block(bool)in cc42xqcF.o
  "boost::re_detail::raise_runtime_error(std::runtime_error const&)", referenced from:
      void boost::re_detail::raise_error<boost::regex_traits_wrapper<boost::regex_traits<char, boost::cpp_regex_traits<char> > > >(boost::regex_traits_wrapper<boost::regex_traits<char, boost::cpp_regex_traits<char> > > const&, boost::regex_constants::error_type)in cc42xqcF.o
  "boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::match()", referenced from:
      bool boost::regex_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, char, boost::regex_traits<char, boost::cpp_regex_traits<char> > >(__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, __gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > >&, boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > > const&, boost::regex_constants::_match_flags)in cc42xqcF.o
  "boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, 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)", referenced from:
      boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::perl_matcher(__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, __gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > >&, 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::basic_string<char, std::char_traits<char>, std::allocator<char> > >)in cc42xqcF.o
  "boost::re_detail::cpp_regex_traits_implementation<char>::transform_primary(char const*, char const*) const", referenced from:
      boost::cpp_regex_traits<char>::transform_primary(char const*, char const*) constin cc42xqcF.o
  "boost::re_detail::cpp_regex_traits_implementation<char>::transform(char const*, char const*) const", referenced from:
      boost::cpp_regex_traits<char>::transform(char const*, char const*) constin cc42xqcF.o
  "boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::do_assign(char const*, char const*, unsigned int)", referenced from:
      boost::basic_regex<char, boost::regex_traits<char, boost::cpp_regex_traits<char> > >::assign(char const*, char const*, unsigned int)in cc42xqcF.o
ld: symbol(s) not found
collect2: ld returned 1 exit status

Thanks!

[kevinchkin]

Ok. Finally I was able to set up everything. For those who want to refer, here is what I did:

1. Installing macports from http://distfiles.macports.org/MacPorts/MacPorts-1.9.1-10.6-SnowLeopard.dmg

2. Install boost using command below

$sudo port install boost 

Note: It will take about 15-20min in step #2

3. For me boost was installed under

/opt/local/var/macports/software/boost/1.43.0_0/opt/local/boost

4. I created a sample program below in home directory

include <boost/shared_ptr.hpp>
#include <iostream>
#include <iterator>
#include <algorithm>

int main() {   
    boost::shared_ptr<int> myPtr (new int (1));
    std::cout << *myPtr;
    return 0;
}   

5 There are two ways to compile the program now
g++ -I /opt/local/var/macports/software/boost/1.43.0_0/opt/local/include/ example.cpp -o example

OR

Create a symlink in the directory you have a .cpp file in do,

      ln -s /opt/local/var/macports/software/boost/1.43.0_0/opt/local/include/  boost   

6. After creating a symlink compile the program using
g++ -I boost example.cpp -o example

Hope this helps.

Reference: Thanks to John at http://forums.macrumors.com/showthread.php?t=290098