Trying to get boost libraries setup and compile/run some of the boost tutorials but am running into issues. I've googled around and tried some things, but nothing seems to be working. Would appreciate it if you guys could point me in the right direction.
Here's output from command line:
g++ -I /usr/local/boost_1_68_0/ timer.cpp -o timer
/tmp/ccLjn1qn.o: In function boost::system::system_category()':
timer.cpp:(.text._ZN5boost6system15system_categoryEv[_ZN5boost6system15system_categoryEv]+0x7): undefined reference toboost::system::detail::system_category_instance'
/tmp/ccLjn1qn.o: In function boost::system::generic_category()':
timer.cpp:(.text._ZN5boost6system16generic_categoryEv[_ZN5boost6system16generic_categoryEv]+0x7): undefined reference toboost::system::detail::generic_category_instance'
/tmp/ccLjn1qn.o: In function boost::asio::detail::posix_event::posix_event()':
timer.cpp:(.text._ZN5boost4asio6detail11posix_eventC2Ev[_ZN5boost4asio6detail11posix_eventC5Ev]+0x4d): undefined reference topthread_condattr_setclock'
/tmp/ccLjn1qn.o: In function boost::asio::detail::posix_thread::~posix_thread()':
timer.cpp:(.text._ZN5boost4asio6detail12posix_threadD2Ev[_ZN5boost4asio6detail12posix_threadD5Ev]+0x26): undefined reference topthread_detach'
/tmp/ccLjn1qn.o: In function boost::asio::detail::posix_thread::join()':
timer.cpp:(.text._ZN5boost4asio6detail12posix_thread4joinEv[_ZN5boost4asio6detail12posix_thread4joinEv]+0x2b): undefined reference topthread_join'
/tmp/ccLjn1qn.o: In function boost::asio::basic_waitable_timer<std::chrono::_V2::steady_clock, boost::asio::wait_traits<std::chrono::_V2::steady_clock> >::basic_waitable_timer(boost::asio::io_context&, std::chrono::duration<long, std::ratio<1l, 1000000000l> > const&)':
timer.cpp:(.text._ZN5boost4asio20basic_waitable_timerINSt6chrono3_V212steady_clockENS0_11wait_traitsIS4_EEEC2ERNS0_10io_contextERKNS2_8durationIlSt5ratioILl1ELl1000000000EEEE[_ZN5boost4asio20basic_waitable_timerINSt6chrono3_V212steady_clockENS0_11wait_traitsIS4_EEEC5ERNS0_10io_contextERKNS2_8durationIlSt5ratioILl1ELl1000000000EEEE]+0x41): undefined reference toboost::system::detail::system_category_instance'
/tmp/ccLjn1qn.o: In function boost::asio::basic_waitable_timer<std::chrono::_V2::steady_clock, boost::asio::wait_traits<std::chrono::_V2::steady_clock> >::wait()':
timer.cpp:(.text._ZN5boost4asio20basic_waitable_timerINSt6chrono3_V212steady_clockENS0_11wait_traitsIS4_EEE4waitEv[_ZN5boost4asio20basic_waitable_timerINSt6chrono3_V212steady_clockENS0_11wait_traitsIS4_EEE4waitEv]+0x26): undefined reference toboost::system::detail::system_category_instance'
/tmp/ccLjn1qn.o: In function boost::asio::detail::deadline_timer_service<boost::asio::detail::chrono_time_traits<std::chrono::_V2::steady_clock, boost::asio::wait_traits<std::chrono::_V2::steady_clock> > >::destroy(boost::asio::detail::deadline_timer_service<boost::asio::detail::chrono_time_traits<std::chrono::_V2::steady_clock, boost::asio::wait_traits<std::chrono::_V2::steady_clock> > >::implementation_type&)':
timer.cpp:(.text._ZN5boost4asio6detail22deadline_timer_serviceINS1_18chrono_time_traitsINSt6chrono3_V212steady_clockENS0_11wait_traitsIS6_EEEEE7destroyERNSA_19implementation_typeE[_ZN5boost4asio6detail22deadline_timer_serviceINS1_18chrono_time_traitsINSt6chrono3_V212steady_clockENS0_11wait_traitsIS6_EEEEE7destroyERNSA_19implementation_typeE]+0x29): undefined reference toboost::system::detail::system_category_instance'
collect2: error: ld returned 1 exit status
You need to learn about linking libraries (like -l boost_system -l boost_thread -l boost_asio). Boost documentation should have usage examples.
Related
I am fairly new to using Linux. But I believe I have done the correct steps to get set up:
wget for Python 3.8.5, did the make for it.
wget for boost 1.74, bootstrap, ./b2
And boost installed and setup everything except for Python which it did not auto-detect. After many hours of frustration, I can get it to find python with:
./bootstrap.sh --with-python=python3.8
running ./b2 --debug-configuration --with-python
shows that it has found it here:
notice: [python-cfg] Details of this Python configuration: notice:
[python-cfg] interpreter command: "/usr/local/bin/python3.8" notice:
[python-cfg] include path: "/usr/local/include/python3.8" notice:
[python-cfg] library path: "/usr/local/lib/python3.8/config"
"/usr/local/lib"
So to this end I am compiling my program successfully with the boost include and python include folder mentioned from b2's debug output above. I am linking similarly with -lpython3.8 -lboost_python38 -lboost_system
All 3 are being found evidently as it does not complain about missing libraries.
Parser.o: In function `_Py_DECREF':
Parser.cpp:(.text+0x5b): undefined reference to `_Py_Dealloc'
Parser.o: In function `sections_to_html(std::__cxx11::list<DivSection, std::allocator<DivSection> > const&)':
Parser.cpp:(.text+0x1eb3): undefined reference to `PyUnicode_FromString'
Parser.cpp:(.text+0x1edf): undefined reference to `PyUnicode_FromString'
Parser.o: In function `PyInit_Parser':
Parser.cpp:(.text+0x245b): undefined reference to `boost::python::detail::init_module(PyModuleDef&, void (*)())'
Parser.o: In function `boost::python::type_info::name() const':
Parser.cpp:(.text._ZNK5boost6python9type_info4nameEv[_ZNK5boost6python9type_info4nameEv]+0x1f): undefined reference to `boost::python::detail::gcc_demangle(char const*)'
Parser.o: In function `boost::python::api::object::object()':
Parser.cpp:(.text._ZN5boost6python3api6objectC2Ev[_ZN5boost6python3api6objectC5Ev]+0x14): undefined reference to `_Py_NoneStruct'
Parser.o: In function `_object* boost::python::expect_non_null<_object>(_object*)':
Parser.cpp:(.text._ZN5boost6python15expect_non_nullI7_objectEEPT_S4_[_ZN5boost6python15expect_non_nullI7_objectEEPT_S4_]+0x14): undefined reference to `boost::python::throw_error_already_set()'
Parser.o: In function `boost::python::tuple boost::python::make_tuple<boost::python::handle<_object>, boost::python::handle<_object> >(boost::python::handle<_object> const&, boost::python::handle<_object> const&)':
Parser.cpp:(.text._ZN5boost6python10make_tupleINS0_6handleI7_objectEES4_EENS0_5tupleERKT_RKT0_[_ZN5boost6python10make_tupleINS0_6handleI7_objectEES4_EENS0_5tupleERKT_RKT0_]+0x2c): undefined reference to `PyTuple_New'
Parser.cpp:(.text._ZN5boost6python10make_tupleINS0_6handleI7_objectEES4_EENS0_5tupleERKT_RKT0_[_ZN5boost6python10make_tupleINS0_6handleI7_objectEES4_EENS0_5tupleERKT_RKT0_]+0x51): undefined reference to `boost::python::api::object::object(boost::python::handle<_object> const&)'
Parser.cpp:(.text._ZN5boost6python10make_tupleINS0_6handleI7_objectEES4_EENS0_5tupleERKT_RKT0_[_ZN5boost6python10make_tupleINS0_6handleI7_objectEES4_EENS0_5tupleERKT_RKT0_]+0xda): undefined reference to `boost::python::api::object::object(boost::python::handle<_object> const&)'
Parser.o: In function `void boost::python::def<boost::python::tuple (*)(char const*)>(char const*, boost::python::tuple (*)(char const*))':
Parser.cpp:(.text._ZN5boost6python3defIPFNS0_5tupleEPKcEEEvS4_T_[_ZN5boost6python3defIPFNS0_5tupleEPKcEEEvS4_T_]+0x50): undefined reference to `boost::python::detail::scope_setattr_doc(char const*, boost::python::api::object const&, char const*)'
Parser.o: In function `boost::python::api::object boost::python::detail::make_function_aux<boost::python::tuple (*)(char const*), boost::python::default_call_policies, boost::mpl::vector2<boost::python::tuple, char const*> >(boost::python::tuple (*)(char const*), boost::python::default_call_policies const&, boost::mpl::vector2<boost::python::tuple, char const*> const&)':
Parser.cpp:(.text._ZN5boost6python6detail17make_function_auxIPFNS0_5tupleEPKcENS0_21default_call_policiesENS_3mpl7vector2IS3_S5_EEEENS0_3api6objectET_RKT0_RKT1_ [_ZN5boost6python6detail17make_function_auxIPFNS0_5tupleEPKcENS0_21default_call_policiesENS_3mpl7vector2IS3_S5_EEEENS0_3api6objectET_RKT0_RKT1_]+0x67): undefined reference to `boost::python::objects::function_object(boost::python::objects::py_function const&)'
Parser.o: In function `boost::python::objects::py_function_impl_base::py_function_impl_base()':
Parser.cpp:(.text._ZN5boost6python7objects21py_function_impl_baseC2Ev[_ZN5boost6python7objects21py_function_impl_baseC5Ev]+0xb): undefined reference to `vtable for boost::python::objects::py_function_impl_base'
Parser.o:(.data.rel.ro._ZTVN5boost6python7objects23caller_py_function_implINS0_6detail6callerIPFNS0_5tupleEPKcENS0_21default_call_policiesENS_3mpl7vector2IS5_S7_EEEEEE [_ZTVN5boost6python7objects23caller_py_function_implINS0_6detail6callerIPFNS0_5tupleEPKcENS0_21default_call_policiesENS_3mpl7vector2IS5_S7_EEEEEE]+0x30): undefined reference to `boost::python::objects::py_function_impl_base::max_arity() const'
Parser.o: In function `boost::python::objects::caller_py_function_impl<boost::python::detail::caller<boost::python::tuple (*)(char const*), boost::python::default_call_policies, boost::mpl::vector2<boost::python::tuple, char const*> > >::~caller_py_function_impl()':
Parser.cpp:(.text._ZN5boost6python7objects23caller_py_function_implINS0_6detail6callerIPFNS0_5tupleEPKcENS0_21default_call_policiesENS_3mpl7vector2IS5_S7_EEEEED2Ev [_ZN5boost6python7objects23caller_py_function_implINS0_6detail6callerIPFNS0_5tupleEPKcENS0_21default_call_policiesENS_3mpl7vector2IS5_S7_EEEEED5Ev]+0x22): undefined reference to `boost::python::objects::py_function_impl_base::~py_function_impl_base()'
Parser.o:(.data.rel.ro._ZTIN5boost6python7objects23caller_py_function_implINS0_6detail6callerIPFNS0_5tupleEPKcENS0_21default_call_policiesENS_3mpl7vector2IS5_S7_EEEEEE [_ZTIN5boost6python7objects23caller_py_function_implINS0_6detail6callerIPFNS0_5tupleEPKcENS0_21default_call_policiesENS_3mpl7vector2IS5_S7_EEEEEE]+0x10): undefined reference to `typeinfo for boost::python::objects::py_function_impl_base'
Parser.o: In function `boost::python::converter::pointer_arg_from_python<char const*>::pointer_arg_from_python(_object*)':
Parser.cpp:(.text._ZN5boost6python9converter23pointer_arg_from_pythonIPKcEC2EP7_object[_ZN5boost6python9converter23pointer_arg_from_pythonIPKcEC5EP7_object]+0x18): undefined reference to `_Py_NoneStruct'
Parser.cpp:(.text._ZN5boost6python9converter23pointer_arg_from_pythonIPKcEC2EP7_object[_ZN5boost6python9converter23pointer_arg_from_pythonIPKcEC5EP7_object]+0x34): undefined reference to `boost::python::converter::get_lvalue_from_python(_object*, boost::python::converter::registration const&)'
Parser.o: In function `boost::python::converter::pointer_arg_from_python<char const*>::operator()() const':
Parser.cpp:(.text._ZNK5boost6python9converter23pointer_arg_from_pythonIPKcEclEv[_ZNK5boost6python9converter23pointer_arg_from_pythonIPKcEclEv]+0x1e): undefined reference to `_Py_NoneStruct'
Parser.o: In function `boost::python::converter::expected_pytype_for_arg<boost::python::tuple>::get_pytype()':
Parser.cpp:(.text._ZN5boost6python9converter23expected_pytype_for_argINS0_5tupleEE10get_pytypeEv[_ZN5boost6python9converter23expected_pytype_for_argINS0_5tupleEE10get_pytypeEv]+0x1b): undefined reference to `boost::python::converter::registry::query(boost::python::type_info)'
Parser.cpp:(.text._ZN5boost6python9converter23expected_pytype_for_argINS0_5tupleEE10get_pytypeEv[_ZN5boost6python9converter23expected_pytype_for_argINS0_5tupleEE10get_pytypeEv]+0x32): undefined reference to `boost::python::converter::registration::expected_from_python_type() const'
Parser.o: In function `boost::python::converter::expected_pytype_for_arg<char const*>::get_pytype()':
Parser.cpp:(.text._ZN5boost6python9converter23expected_pytype_for_argIPKcE10get_pytypeEv[_ZN5boost6python9converter23expected_pytype_for_argIPKcE10get_pytypeEv]+0x1b): undefined reference to `boost::python::converter::registry::query(boost::python::type_info)'
Parser.cpp:(.text._ZN5boost6python9converter23expected_pytype_for_argIPKcE10get_pytypeEv[_ZN5boost6python9converter23expected_pytype_for_argIPKcE10get_pytypeEv]+0x32): undefined reference to `boost::python::converter::registration::expected_from_python_type() const'
Parser.o: In function `boost::python::converter::registration const& boost::python::converter::detail::registry_lookup2<char const volatile>(char const volatile& (*)())':
Parser.cpp:(.text._ZN5boost6python9converter6detail16registry_lookup2IVKcEERKNS1_12registrationEPFRT_vE[_ZN5boost6python9converter6detail16registry_lookup2IVKcEERKNS1_12registrationEPFRT_vE]+0x1f): undefined reference to `boost::python::converter::registry::lookup(boost::python::type_info)'
Parser.o: In function `boost::python::converter::pyobject_type<boost::python::tuple, &PyTuple_Type>::get_pytype()':
Parser.cpp:(.text._ZN5boost6python9converter13pyobject_typeINS0_5tupleEXadL_Z12PyTuple_TypeEEE10get_pytypeEv[_ZN5boost6python9converter13pyobject_typeINS0_5tupleEXadL_Z12PyTuple_TypeEEE10get_pytypeEv]+0x7): undefined reference to `PyTuple_Type'
collect2: error: ld returned 1 exit status
makefile:8: recipe for target 'Parser' failed
make: *** [Parser] Error 1
I see a bunch of boost namespace stuff coming up.
So this leads me to believe that either there is a change in the name mangling between what I've compiled and what is being linked in, or there is a difference with defines which is causing either namespace or other differences.
But I am unsure how to find out the cause, assuming I am correct with my previous assumptions.
EDIT: I had cut the dump short and said that 'most' of it seems to be from boost, but JaMiT called me on it. So theres the full dump.
EDIT 2: I checked my python config and the results are:
user#vm:/usr/local/lib/python3.8/config-3.8-x86_64-linux-gnu$ python python-config.py --cflags
-I/usr/local/include/python3.8 -I/usr/local/include/python3.8 -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall
user#vm:/usr/local/lib/python3.8/config-3.8-x86_64-linux-gnu$ python python-config.py --ldflags
-L/usr/local/lib/python3.8/config-3.8-x86_64-linux-gnu -lcrypt -lpthread -ldl -lutil -lm -lm
EDIT 3:
I used nm on libpython3.8.a from my /usr/local/lib/python3.8/config-3.8-x86_64-linux-gnu and found that PyUnicode_FromString and some others do appear correctly as type 'T' function-with-param.
So they are there.
Thanks to a comment by 'sehe' mentioning ordering of libs, I did some Google searching and found the problem - my linking step in the makefile was:
$(CC) $(COMMONFLAGS) $(LDFLAGS) $(LIBS) -o Parser Parser.o grammar.o words.o
The additional libraries I use should come at the end eg:
$(CC) $(COMMONFLAGS) $(LDFLAGS) -o Parser Parser.o grammar.o words.o $(LIBS)
But after fixing the aforementioned ordering of arguments on the linker invocation, I had additional undefined references crop up from within Python which had not been reported before.
This turned out not to be an issue as building an executable was just step one - making sure the code compiles and I can link.
In the end to get a makefile building a module I can import into Python, I needed to compile all cpp files with -fPIC and then link with -shared -export-dynamic
Python's lib was not needed and so my final libs are -lboost_python38 -lboost_system
After setting my LD_LIBRARY_PATH to point to the boost /stage/lib folder, I was able to import my Parser.so module and it worked correctly.
What are the linker flags I'm missing here?
I try to compile this on an Ubuntu 18.04 LTS and it fails, it works inside a Debian 9 docker image:
#include <boost/dll.hpp>
// Trying to compile it with:
// g++ -o program -lboost_filesystem -ldl -lboost_system program.cpp
int main() {
boost::dll::program_location();
return 0;
}
The error I get is:
/tmp/ccKlWUUd.o: In function `__static_initialization_and_destruction_0(int, int)':
program.cpp:(.text+0x68): undefined reference to `boost::system::generic_category()'
program.cpp:(.text+0x74): undefined reference to `boost::system::generic_category()'
program.cpp:(.text+0x80): undefined reference to `boost::system::system_category()'
/tmp/ccKlWUUd.o: In function `boost::system::error_code::error_code()':
program.cpp:(.text._ZN5boost6system10error_codeC2Ev[_ZN5boost6system10error_codeC5Ev]+0x17): undefined reference to `boost::system::system_category()'
/tmp/ccKlWUUd.o: In function `boost::system::error_category::std_category::equivalent(int, std::error_condition const&) const':
program.cpp:(.text._ZNK5boost6system14error_category12std_category10equivalentEiRKSt15error_condition[_ZNK5boost6system14error_category12std_category10equivalentEiRKSt15error_condition]+0xb8): undefined reference to `boost::system::generic_category()'
program.cpp:(.text._ZNK5boost6system14error_category12std_category10equivalentEiRKSt15error_condition[_ZNK5boost6system14error_category12std_category10equivalentEiRKSt15error_condition]+0xf3): undefined reference to `boost::system::generic_category()'
/tmp/ccKlWUUd.o: In function `boost::system::error_category::std_category::equivalent(std::error_code const&, int) const':
program.cpp:(.text._ZNK5boost6system14error_category12std_category10equivalentERKSt10error_codei[_ZNK5boost6system14error_category12std_category10equivalentERKSt10error_codei]+0xb8): undefined reference to `boost::system::generic_category()'
program.cpp:(.text._ZNK5boost6system14error_category12std_category10equivalentERKSt10error_codei[_ZNK5boost6system14error_category12std_category10equivalentERKSt10error_codei]+0xf3): undefined reference to `boost::system::generic_category()'
program.cpp:(.text._ZNK5boost6system14error_category12std_category10equivalentERKSt10error_codei[_ZNK5boost6system14error_category12std_category10equivalentERKSt10error_codei]+0x1d2): undefined reference to `boost::system::generic_category()'
/tmp/ccKlWUUd.o: In function `boost::dll::detail::report_error(boost::system::error_code const&, char const*)':
program.cpp:(.text._ZN5boost3dll6detail12report_errorERKNS_6system10error_codeEPKc[_ZN5boost3dll6detail12report_errorERKNS_6system10error_codeEPKc]+0x2a): undefined reference to `dlerror'
/tmp/ccKlWUUd.o: In function `boost::filesystem::read_symlink(boost::filesystem::path const&, boost::system::error_code&)':
program.cpp:(.text._ZN5boost10filesystem12read_symlinkERKNS0_4pathERNS_6system10error_codeE[_ZN5boost10filesystem12read_symlinkERKNS0_4pathERNS_6system10error_codeE]+0x36): undefined reference to `boost::filesystem::detail::read_symlink(boost::filesystem::path const&, boost::system::error_code*)'
collect2: error: ld returned 1 exit status
The system here is:
gcc: 7.0.3
boost: 1.65.1
libc6: 2.73
Your build command is in the wrong order, and order matters.
GCC reads left-to-right, taking symbols from libraries when it already knows it needs them. As you put program.cpp last, you don't make that known until all listed libraries have already been identified and discarded.
Put program.cpp first, then the libraries it needs.
g++ -o program program.cpp -lboost_filesystem -ldl -lboost_system
Yes, it's kind of weird. (Even weirder that it worked on Debian! Though apparently only some "recent" Linuxy distributions default --as-needed on, which is what causes the behaviour you see, showing that the behaviour isn't necessarily guaranteed. Perhaps Debian 9 just outright does not do that.)
More info:
Why does the order in which libraries are linked sometimes cause errors in GCC?
I am having lots of trouble getting a specific set of drivers working, called libnifalcon.
I am pretty sure that the installation was successful, but when I try to compile the example programs I get the errors:
mars#marslab:~/Documents/libnifalcon-1.0/examples/findfalcons$ g++ findfalcons.cpp
/tmp/cc8TtfGn.o: In function `runFalconTest()':
findfalcons.cpp:(.text+0x6b): undefined reference to `libnifalcon::FalconDevice::FalconDevice()'
findfalcons.cpp:(.text+0xdd): undefined reference to `libnifalcon::FalconDevice::getDeviceCount(unsigned int&)'
findfalcons.cpp:(.text+0x1bd): undefined reference to `libnifalcon::FalconDevice::open(unsigned int)'
findfalcons.cpp:(.text+0x224): undefined reference to `libnifalcon::FalconDevice::isFirmwareLoaded()'
findfalcons.cpp:(.text+0x2ac): undefined reference to `libnifalcon::FalconFirmware::loadFirmware(bool, unsigned int const&, unsigned char*)'
findfalcons.cpp:(.text+0x33b): undefined reference to `libnifalcon::FalconDevice::isFirmwareLoaded()'
findfalcons.cpp:(.text+0x3dd): undefined reference to `libnifalcon::FalconDevice::runIOLoop(unsigned int)'
findfalcons.cpp:(.text+0x504): undefined reference to `libnifalcon::FalconDevice::runIOLoop(unsigned int)'
findfalcons.cpp:(.text+0x512): undefined reference to `libnifalcon::FalconDevice::close()'
findfalcons.cpp:(.text+0x52b): undefined reference to `libnifalcon::FalconDevice::~FalconDevice()'
findfalcons.cpp:(.text+0x53f): undefined reference to `libnifalcon::FalconDevice::~FalconDevice()'
/tmp/cc8TtfGn.o: In function `void libnifalcon::FalconDevice::setFalconFirmware<libnifalcon::FalconFirmwareNovintSDK>()':
findfalcons.cpp:(.text._ZN11libnifalcon12FalconDevice17setFalconFirmwareINS_23FalconFirmwareNovintSDKEEEvv[void libnifalcon::FalconDevice::setFalconFirmware<libnifalcon::FalconFirmwareNovintSDK>()]+0x1d): undefined reference to `libnifalcon::FalconFirmwareNovintSDK::FalconFirmwareNovintSDK()'
collect2: ld returned 1 exit status
How can I verify the libraries are linked correctly? What can I do if they aren't?
You're not linking with anything, i.e.
g++ file.cpp
does not link to any libraries other than the standard library. You need to link with other modules or libraries, probably libnifalcon
g++ findfalcons.cpp -lnifalcon
or... you probably will need to do something like
g++ -L/path/to/libnifalcon findfalcons.cpp -lnifalcon
where -I tells where to look for libraries.
Hi I'm trying to use gnuplot-iostream, at the minute I'm just trying to get the code here working. When I try to combile I get errors in the linker saying:
In function `stream<int, boost::iostreams::file_descriptor_flags>':
/usr/include/boost/iostreams/stream.hpp:130: undefined reference to `boost::iostreams::file_descriptor_sink::file_descriptor_sink(int, boost::iostreams::file_descriptor_flags)'
In function `boost::iostreams::file_descriptor_sink boost::iostreams::detail::wrap<boost::iostreams::file_descriptor_sink>(boost::iostreams::file_descriptor_sink const&, boost::disable_if<boost::iostreams::is_std_io<boost::iostreams::file_descriptor_sink>, void>::type*)':
/usr/include/boost/iostreams/detail/wrap_unwrap.hpp:53: undefined reference to `boost::iostreams::file_descriptor_sink::file_descriptor_sink(boost::iostreams::file_descriptor_sink const&)'
In function `concept_adapter':
/usr/include/boost/iostreams/detail/adapter/concept_adapter.hpp:67: undefined reference to `boost::iostreams::file_descriptor_sink::file_descriptor_sink(boost::iostreams::file_descriptor_sink const&)'
/usr/include/boost/iostreams/detail/adapter/concept_adapter.hpp:38: undefined reference to `boost::iostreams::file_descriptor_sink::file_descriptor_sink(boost::iostreams::file_descriptor_sink const&)'
In function `long boost::iostreams::detail::write_device_impl<boost::iostreams::output>::write<boost::iostreams::file_descriptor_sink>(boost::iostreams::file_descriptor_sink&, boost::iostreams::char_type_of<boost::iostreams::file_descriptor_sink>::type const*, long)':
/usr/include/boost/iostreams/write.hpp:121: undefined reference to `boost::iostreams::file_descriptor::write(char const*, long)'
In function `void boost::iostreams::detail::close_impl<boost::iostreams::closable_tag>::close<boost::iostreams::file_descriptor_sink>(boost::iostreams::file_descriptor_sink&, std::_Ios_Openmode)':
/usr/include/boost/iostreams/close.hpp:224: undefined reference to `boost::iostreams::file_descriptor::close()'
In function `std::fpos<__mbstate_t> boost::iostreams::detail::seek_device_impl<boost::iostreams::any_tag>::seek<boost::iostreams::file_descriptor_sink>(boost::iostreams::file_descriptor_sink&, long, std::_Ios_Seekdir, std::_Ios_Openmode)':
/usr/include/boost/iostreams/seek.hpp:137: undefined reference to `boost::iostreams::file_descriptor::seek(long, std::_Ios_Seekdir)'
collect2: ld returned 1 exit status
Note I have boost installed and have previously compiled programs that use iostream.
Any help massively appreciated. Thanks
Ruling out the obvious... are you compiling with g++ -lboost_iostreams? If you can share some information about how the compiler and linker are being invoked it will make it easier to answer your question.
Run into exact problem when tried to use g++ with gnuplot-iostream library.
g++ prog.cpp -L/usr/lib -lboost_filesystem -lboost_system -lboost_iostreams
Resolved the issue for me - the code were compiled successfully with no errors.
I receiving a undefined reference error when try to compile an c++ program. I'm the using the -I and -L switches to point to lib and include files my command:
g++ -g -Wall -L/usr/local/lib/active -I/usr/local/include/active tutorial_01.cpp -o tutorial_01
Can some help me with what I'm missing?
In file included from /usr/local/include/active/jaus/core/header.h:44:0,
from /usr/local/include/active/jaus/core/message.h:49,
from /usr/local/include/active/jaus/core/service.h:44,
from /usr/local/include/active/jaus/core/transport/transport.h:44,
from /usr/local/include/active/jaus/core/component.h:43,
from tutorial_01.cpp:42:
/usr/local/include/active/jaus/core/address.h: In static member function ‘static bool JAUS::Address::IsReservedComponentID(JAUS::Byte)’:
/usr/local/include/active/jaus/core/address.h:302:40: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
/usr/local/include/active/jaus/core/address.h:303:40: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
/tmp/cczAJw8H.o: In function `main':
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:58: undefined reference to `JAUS::Component::Component()'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:78: undefined reference to `JAUS::Discovery::Name'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:78: undefined reference to `JAUS::Component::GetService(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:88: undefined reference to `JAUS::Discovery::SetSubsystemIdentification(JAUS::Subsystem::Type, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:100: undefined reference to `JAUS::Component::Initialize(JAUS::Address const&, double)'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:109: undefined reference to `CxUtils::Time::GetUtcTimeMs()'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:122: undefined reference to `JAUS::Management::Name'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:122: undefined reference to `JAUS::Component::GetService(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:130: undefined reference to `CxUtils::Time::GetUtcTimeMs()'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:136: undefined reference to `CxUtils::Time::GetUtcTimeMs()'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:139: undefined reference to `CxUtils::GetChar()'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:144: undefined reference to `CxUtils::SleepMs(unsigned int)'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:150: undefined reference to `JAUS::Component::Shutdown()'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:58: undefined reference to `JAUS::Component::~Component()'
/home/reese/JAUS++-2.110519-src/libraries/jaus++/2.0/src/jaus/core/tutorial_01.cpp:58: undefined reference to `JAUS::Component::~Component()'
collect2: ld returned 1 exit status
The -L option doesn't really do anything for you unless you also use -l with the name of the library. I'm going to take a guess that your library is named libactive.a, in which case you'll want to do this:
g++ -g -Wall -L/usr/local/lib/active -lactive -I/usr/local/include/active tutorial_01.cpp -o tutorial_01
If the library has a different name, you'll need to change it.
Here's the rule: For a library called /path/to/library/libmylibrary.a, use this command line: -L/path/to/library -lmylibrary.