Re: trouble with boost 1.53

> On Dec 24, 2014, at 1:52 AM, Jesse Alama <[email protected]> wrote:
> 
> I'm working on updating a package of mine (ledger) that uses the boost C++ suite (I'm using boost1.53.python27) as well as libicu48.  I'm having some trouble with the build and can't quite tell where the problem lies.  Consider this minature C++ program badboost.cpp (which occurs as one of the programs during the config stage of ledger):
> 
> #include <boost/regex/icu.hpp>
> 
> using namespace boost;
> 
> int main() {
>  std::string text = "Активы";
>  u32regex r = make_u32regex("активы", regex::perl | regex::icase);
>  return u32regex_search(text, r) ? 0 : 1;
> }
> 
> When compiling this, I get a linking error:
> 
> In file included from badboost.cpp:1:
> In file included from /sw/include/boost/regex/icu.hpp:25:
> In file included from /sw/include/boost/regex.hpp:31:
> In file included from /sw/include/boost/regex/v4/regex.hpp:32:
> In file included from /sw/include/boost/regex/v4/regex_workaround.hpp:43:
> In file included from /sw/include/boost/shared_ptr.hpp:17:
> /sw/include/boost/smart_ptr/shared_ptr.hpp:491:41: warning: rvalue references are a C++11 extension [-Wc++11-extensions]
>    shared_ptr( std::unique_ptr< Y, D > && r ): px( r.get() ), pn()
>                                        ^
> /sw/include/boost/smart_ptr/shared_ptr.hpp:556:51: warning: rvalue references are a C++11 extension [-Wc++11-extensions]
>    shared_ptr & operator=( std::unique_ptr<Y, D> && r )
>                                                  ^
> /sw/include/boost/smart_ptr/shared_ptr.hpp:558:55: warning: rvalue references are a C++11 extension [-Wc++11-extensions]
>        this_type( static_cast< std::unique_ptr<Y, D> && >( r ) ).swap(*this);
>                                                      ^
> 3 warnings generated.
> Undefined symbols for architecture x86_64:
>  "boost::basic_regex<int, boost::icu_regex_traits>::do_assign(int const*, int const*, unsigned int)", referenced from:
>      boost::basic_regex<int, boost::icu_regex_traits>::assign(int const*, int const*, unsigned int) in badboost-2044fe.o
>  "boost::re_detail::get_mem_block()", referenced from:
>      boost::re_detail::save_state_init::save_state_init(boost::re_detail::saved_state**, boost::re_detail::saved_state**) in badboost-2044fe.o
>      boost::re_detail::perl_matcher<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int>, std::__1::allocator<boost::sub_match<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int> > >, boost::icu_regex_traits>::extend_stack() in badboost-2044fe.o
>  "boost::re_detail::put_mem_block(void*)", referenced from:
>      boost::re_detail::save_state_init::~save_state_init() in badboost-2044fe.o
>      boost::re_detail::perl_matcher<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int>, std::__1::allocator<boost::sub_match<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int> > >, boost::icu_regex_traits>::unwind_extra_block(bool) in badboost-2044fe.o
>  "boost::re_detail::verify_options(unsigned int, boost::regex_constants::_match_flags)", referenced from:
>      boost::re_detail::perl_matcher<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int>, std::__1::allocator<boost::sub_match<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int> > >, boost::icu_regex_traits>::find_imp() in badboost-2044fe.o
>  "boost::re_detail::raise_runtime_error(std::runtime_error const&)", referenced from:
>      void boost::re_detail::raise_error<boost::regex_traits_wrapper<boost::icu_regex_traits> >(boost::regex_traits_wrapper<boost::icu_regex_traits> const&, boost::regex_constants::error_type) in badboost-2044fe.o
>  "boost::re_detail::get_default_error_string(boost::regex_constants::error_type)", referenced from:
>      boost::icu_regex_traits::error_string(boost::regex_constants::error_type) const in badboost-2044fe.o
>  "boost::re_detail::is_combining_implementation(unsigned short)", referenced from:
>      bool boost::re_detail::is_combining<int>(int) in badboost-2044fe.o
>  "boost::icu_regex_traits::isctype(int, unsigned long long) const", referenced from:
>      boost::re_detail::perl_matcher<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int>, std::__1::allocator<boost::sub_match<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int> > >, boost::icu_regex_traits>::find_restart_word() in badboost-2044fe.o
>      boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int> boost::re_detail::re_is_set_member<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int>, int, boost::icu_regex_traits, unsigned long long>(boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int>, boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int>, boost::re_detail::re_set_long<unsigned long long> const*, boost::re_detail::regex_data<int, boost::icu_regex_traits> const&, bool) in badboost-2044fe.o
>      boost::re_detail::perl_matcher<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int>, std::__1::allocator<boost::sub_match<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int> > >, boost::icu_regex_traits>::match_word_boundary() in badboost-2044fe.o
>      boost::re_detail::perl_matcher<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int>, std::__1::allocator<boost::sub_match<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int> > >, boost::icu_regex_traits>::match_within_word() in badboost-2044fe.o
>      boost::re_detail::perl_matcher<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int>, std::__1::allocator<boost::sub_match<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int> > >, boost::icu_regex_traits>::match_word_start() in badboost-2044fe.o
>      boost::re_detail::perl_matcher<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int>, std::__1::allocator<boost::sub_match<boost::u8_to_u32_iterator<std::__1::__wrap_iter<char const*>, int> > >, boost::icu_regex_traits>::match_word_end() in badboost-2044fe.o
>  "boost::re_detail::icu_regex_traits_implementation::do_transform(int const*, int const*, icu_48::Collator const*) const", referenced from:
>      boost::re_detail::icu_regex_traits_implementation::transform_primary(int const*, int const*) const in badboost-2044fe.o
>      boost::re_detail::icu_regex_traits_implementation::transform(int const*, int const*) const in badboost-2044fe.o
> ld: symbol(s) not found for architecture x86_64
> clang: error: linker command failed with exit code 1 (use -v to see invocation)
> 
> Is there some kind of binary incompatibility problem here?
> 
> Jesse

While most of boost is just header files, there are some actual libraries that are needed for some things and regex is one of them. Try adding -lboost_regex-mt to the link command.

Daniel


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