Boost linking on Linux with GCC - c++

Question

I'm trying to compile a C++ program under Ubuntu 11.10 using boost 1.42 installed from the repository (I also tried building boost myself, but the result is the same as with the repo-boost). The source files compile but the linker gives errors... I tried for hours but couldn't find a solution to this, maybe someone can help me...
Here's the target from the Makefile
CXX = /usr/bin/g++
LDFLAGS = -L. \
-Lpath/to/libMy_Lib.a
CFLAGS = -I. \
-Wall \
-g \
-O0
OBJECTS = obj1.o obj2.o
%.o: %.cpp
$(CXX) -c $*.cpp -o $# \
-Wno-deprecated \
$(CFLAGS)
all: program
program: $(OBJECTS)
$(CXX) $^ \
$(LDFLAGS) \
-o myProg \
-lboost_regex \
-lboost_filesystem \
-lboost_date_time \
-lboost_system \
-lboost_thread \
-lMy_Lib
libMy_Lib.a is a library which also uses boost (I had no problems compiling it on the same system). All the libs look ok in /usr/lib...
Here is the output ld generates (I used make 2> output) http://ubuntuone.com/6QlU7AUZGgLGIu7sHbvDHm
Maybe the order of the libraries isn't correct (I know boost_filesystem depends on boost_system, but I'm not sure about the rest) or I forgot to specify some additional libs on which my program needs to link to...
This really buggs me and I feel like I'm blind to not see it...

Answer 1

Those error messages are impressive:
../../DIAG_DECODER//libDecoder_Element.a(BaseElements_Group.o): In function `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)':
BaseElements_Group.cpp:(.text._ZN5boost11regex_matchIN9__gnu_cxx17__normal_iteratorIPKcSsEESaINS_9sub_matchIS5_EEEcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEEEbT_SD_RNS_13match_resultsISD_T0_EERKNS_11basic_regexIT1_T2_EENS_15regex_constants12_match_flagsE[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)]+0x4c):
undefined reference to `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()'
I added a newline before the 'undefined reference'...
I think you should probably list your library, which uses Boost functions, before any of the Boost libraries.