Linker error on Linux64

[lnxdxC]

Hi all,
thank you for providing the cpp-samples.

I am about to bring this onto an Linux64 architecture. Therefore, I cloned your repo and downloaded the linker files as mentioned in your readme.

I adapted the simpleApp.cpp to be used with bluetooth. Therefore, I changed in #16:
const std::string MAC_Addres = "BTH00:07:80:XX:XX:XX"; // the MAC were tested successfully with the python example

If I try to compile the file simpleApp.cpp by using the following setting:

g++ -o main simpleApp.cpp -L:Linux64 libplux.a -std=c++11

I receive the following error:

/usr/bin/ld: /tmp/ccl8F7kH.o: in function main':
simpleApp.cpp:(.text+0x140): undefined reference to SimpleDev::version[abi:cxx11]()' /usr/bin/ld: simpleApp.cpp:(.text+0x205): undefined reference to SimpleDev::start(float, std::vector<int, std::allocator > const&, int)'
/usr/bin/ld: simpleApp.cpp:(.text+0x29d): undefined reference to SimpleDev::read(std::vector<SimpleDev::Frame, std::allocator<SimpleDev::Frame> >&)' /usr/bin/ld: simpleApp.cpp:(.text+0x375): undefined reference to SimpleDev::stop()'
/usr/bin/ld: /tmp/ccl8F7kH.o: in function SimpleDev::SignalsDevX::SignalsDevX(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': simpleApp.cpp:(.text._ZN9SimpleDev11SignalsDevXC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE[_ZN9SimpleDev11SignalsDevXC5ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE]+0x2a): undefined reference to vtable for SimpleDev::SignalsDevX'
/usr/bin/ld: /tmp/ccl8F7kH.o: in function SimpleDev::SignalsDevX::~SignalsDevX()': simpleApp.cpp:(.text._ZN9SimpleDev11SignalsDevXD2Ev[_ZN9SimpleDev11SignalsDevXD5Ev]+0x13): undefined reference to vtable for SimpleDev::SignalsDevX'
/usr/bin/ld: libplux.a(bth_linux.o): in function BTH::BTH(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': bth_linux.cpp:(.text+0x5c9): undefined reference to str2ba'
/usr/bin/ld: libplux.a(bth_linux.o): in function BTH::findDevices()': bth_linux.cpp:(.text+0x897): undefined reference to hci_get_route'
/usr/bin/ld: bth_linux.cpp:(.text+0x8a8): undefined reference to hci_open_dev' /usr/bin/ld: bth_linux.cpp:(.text+0x8e4): undefined reference to hci_inquiry'
/usr/bin/ld: bth_linux.cpp:(.text+0xa6d): undefined reference to ba2str' /usr/bin/ld: bth_linux.cpp:(.text+0xa84): undefined reference to hci_read_remote_name'`

Additionally, I had to include the following lib in simpleDev.h to use sprintf in #37 in simpleDev.cpp in Linux:

• #include <stdio.h>

Do you provide a more open lib to debug the issue as well?

Best
Daniel

[lnxdxC]

I have isolated the issue a bit further. I`ve reinstalled libbluetooth-dev and parsed the lib to the linker.

Building the object with:
g++ -o main simpleApp.cpp -L:Linux64 libplux.a -lbluetooth -std=c++11 yield:

/tmp/cccZuDST.o: in function SimpleDev::SignalsDevX::SignalsDevX(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': simpleApp.cpp:(.text._ZN9SimpleDev11SignalsDevXC2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE[_ZN9SimpleDev11SignalsDevXC5ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE]+0x2a): undefined reference to vtable for SimpleDev::SignalsDevX'
/usr/bin/ld: /tmp/cccZuDST.o: in function SimpleDev::SignalsDevX::~SignalsDevX()': simpleApp.cpp:(.text._ZN9SimpleDev11SignalsDevXD2Ev[_ZN9SimpleDev11SignalsDevXD5Ev]+0x13): undefined reference to vtable for SimpleDev::SignalsDevX'

Which is coursed by the line "SimpleDev dev(MAC_Addres);" in the simpleApp.cpp