undefined reference to `serial::list_ports()' 2

[Aeroanion]

My issue is similar to issue #78, but after telling the linker where to find the library and trying a couple other things, the problem persists. Also, my installation put the headers and the library in a tmp folder instead of the usual include directories (headers in /tmp/usr/local/include and library in /tmp/usr/local/lib as opposed to the usual /usr/local/include and /usr/local/lib respectively). After telling the compiler where to look for both headers and library with the command, g++ serial_example.cc -o serial -L/tmp/usr/local/lib/libserial.so -I/tmp/usr/local/include it can find them but still fails to compile. I ran the "make test", results below:

$ make test cd build && cmake -DCMAKE_INSTALL_PREFIX=/tmp/usr/local .. -- Using CATKIN_DEVEL_PREFIX: /home/localadmin/apps/serial-master/build/devel -- Using CMAKE_PREFIX_PATH: /opt/ros/indigo -- This workspace overlays: /opt/ros/indigo -- Using PYTHON_EXECUTABLE: /usr/bin/python -- Using Debian Python package layout -- Using empy: /usr/bin/empy -- Using CATKIN_ENABLE_TESTING: ON -- Call enable_testing() -- Using CATKIN_TEST_RESULTS_DIR: /home/localadmin/apps/serial-master/build/test_results -- Found gtest sources under '/usr/src/gtest': gtests will be built -- Using Python nosetests: /usr/bin/nosetests-2.7 -- catkin 0.6.19 -- Configuring done -- Generating done -- Build files have been written to: /home/localadmin/apps/serial-master/build cd build && make run_tests make[1]: Entering directory /home/localadmin/apps/serial-master/build' make[2]: Entering directory/home/localadmin/apps/serial-master/build' make[3]: Entering directory /home/localadmin/apps/serial-master/build' make[4]: Entering directory/home/localadmin/apps/serial-master/build' Scanning dependencies of target gtest make[4]: Leaving directory /home/localadmin/apps/serial-master/build' make[4]: Entering directory/home/localadmin/apps/serial-master/build' [ 8%] Building CXX object gtest/CMakeFiles/gtest.dir/src/gtest-all.cc.o [ 16%] Linking CXX shared library libgtest.so make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [ 16%] Built target gtest make[4]: Entering directory/home/localadmin/apps/serial-master/build' Scanning dependencies of target gtest_main make[4]: Leaving directory /home/localadmin/apps/serial-master/build' make[4]: Entering directory/home/localadmin/apps/serial-master/build' [ 25%] Building CXX object gtest/CMakeFiles/gtest_main.dir/src/gtest_main.cc.o [ 33%] Linking CXX shared library libgtest_main.so make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [ 33%] Built target gtest_main make[4]: Entering directory/home/localadmin/apps/serial-master/build' make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [ 66%] Built target serial make[4]: Entering directory/home/localadmin/apps/serial-master/build' Scanning dependencies of target serial-test make[4]: Leaving directory /home/localadmin/apps/serial-master/build' make[4]: Entering directory/home/localadmin/apps/serial-master/build' [ 75%] Building CXX object tests/CMakeFiles/serial-test.dir/unix_serial_tests.cc.o [ 83%] Linking CXX executable ../devel/lib/serial/serial-test make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [ 83%] Built target serial-test make[4]: Entering directory/home/localadmin/apps/serial-master/build' Scanning dependencies of target serial-test-timer make[4]: Leaving directory /home/localadmin/apps/serial-master/build' make[4]: Entering directory/home/localadmin/apps/serial-master/build' [ 91%] Building CXX object tests/CMakeFiles/serial-test-timer.dir/unit/unix_timer_tests.cc.o [100%] Linking CXX executable ../devel/lib/serial/serial-test-timer make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [100%] Built target serial-test-timer make[4]: Entering directory/home/localadmin/apps/serial-master/build' Scanning dependencies of target tests make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [100%] Built target tests make[4]: Entering directory/home/localadmin/apps/serial-master/build' Scanning dependencies of target clean_test_results_serial make[4]: Leaving directory /home/localadmin/apps/serial-master/build' make[4]: Entering directory/home/localadmin/apps/serial-master/build' Removing test result files from '/home/localadmin/apps/serial-master/build/test_results/serial' make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [100%] Built target clean_test_results_serial make[4]: Entering directory/home/localadmin/apps/serial-master/build' Scanning dependencies of target _run_tests_serial_gtest_serial-test make[4]: Leaving directory /home/localadmin/apps/serial-master/build' make[4]: Entering directory/home/localadmin/apps/serial-master/build' -- run_tests.py: execute commands /home/localadmin/apps/serial-master/build/devel/lib/serial/serial-test --gtest_output=xml:/home/localadmin/apps/serial-master/build/test_results/serial/gtest-serial-test.xml [==========] Running 4 tests from 1 test case. [----------] Global test environment set-up. [----------] 4 tests from SerialTests [ RUN ] SerialTests.readWorks [ OK ] SerialTests.readWorks (227 ms) [ RUN ] SerialTests.writeWorks [ OK ] SerialTests.writeWorks (0 ms) [ RUN ] SerialTests.timeoutWorks [ OK ] SerialTests.timeoutWorks (249 ms) [ RUN ] SerialTests.partialRead [ OK ] SerialTests.partialRead (250 ms) [----------] 4 tests from SerialTests (727 ms total)

[----------] Global test environment tear-down [==========] 4 tests from 1 test case ran. (728 ms total) [ PASSED ] 4 tests. -- run_tests.py: verify result "/home/localadmin/apps/serial-master/build/test_results/serial/gtest-serial-test.xml" make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [100%] Built target _run_tests_serial_gtest_serial-test make[4]: Entering directory/home/localadmin/apps/serial-master/build' Scanning dependencies of target _run_tests_serial_gtest_serial-test-timer make[4]: Leaving directory /home/localadmin/apps/serial-master/build' make[4]: Entering directory/home/localadmin/apps/serial-master/build' -- run_tests.py: execute commands /home/localadmin/apps/serial-master/build/devel/lib/serial/serial-test-timer --gtest_output=xml:/home/localadmin/apps/serial-master/build/test_results/serial/gtest-serial-test-timer.xml [==========] Running 2 tests from 1 test case. [----------] Global test environment set-up. [----------] 2 tests from timer_tests [ RUN ] timer_tests.short_intervals [ OK ] timer_tests.short_intervals (933 ms) [ RUN ] timer_tests.overlapping_long_intervals [ OK ] timer_tests.overlapping_long_intervals (1011 ms) [----------] 2 tests from timer_tests (1944 ms total)

[----------] Global test environment tear-down [==========] 2 tests from 1 test case ran. (1944 ms total) [ PASSED ] 2 tests. -- run_tests.py: verify result "/home/localadmin/apps/serial-master/build/test_results/serial/gtest-serial-test-timer.xml" make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [100%] Built target _run_tests_serial_gtest_serial-test-timer make[4]: Entering directory/home/localadmin/apps/serial-master/build' Scanning dependencies of target _run_tests_serial_gtest make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [100%] Built target _run_tests_serial_gtest make[4]: Entering directory/home/localadmin/apps/serial-master/build' Scanning dependencies of target _run_tests_serial make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [100%] Built target _run_tests_serial make[4]: Entering directory/home/localadmin/apps/serial-master/build' Scanning dependencies of target run_tests make[4]: Leaving directory /home/localadmin/apps/serial-master/build' [100%] Built target run_tests make[3]: Leaving directory/home/localadmin/apps/serial-master/build' make[2]: Leaving directory /home/localadmin/apps/serial-master/build' make[1]: Leaving directory/home/localadmin/apps/serial-master/build'

[slivingston]

@jomilam can you include some of the error message that you receive when you try the command in the opening post?

g++ serial_example.cc -o serial -L/tmp/usr/local/lib/libserial.so -I/tmp/usr/local/include

[Aeroanion]

I re-cmake/make/installed and it seemed to put the library and header in the usual places, so that is not a problem anymore. Trying again to compile but with just g++ serial_example.cc -o serial the output error is:

/tmp/ccLwdBgg.o: In function enumerate_ports()': serial_example.cc:(.text+0x32): undefined reference toserial::list_ports()' /tmp/ccLwdBgg.o: In function run(int, char**)': serial_example.cc:(.text+0x2a1): undefined reference toserial::Serial::Serial(std::string const&, unsigned int, serial::Timeout, serial::bytesize_t, serial::parity_t, serial::stopbits_t, serial::flowcontrol_t)' serial_example.cc:(.text+0x2bc): undefined reference to serial::Serial::isOpen() const' serial_example.cc:(.text+0x37d): undefined reference toserial::Serial::write(std::string const&)' serial_example.cc:(.text+0x3a4): undefined reference to serial::Serial::read(unsigned long)' serial_example.cc:(.text+0x4b7): undefined reference toserial::Serial::write(std::string const&)' serial_example.cc:(.text+0x4de): undefined reference to serial::Serial::read(unsigned long)' serial_example.cc:(.text+0x5c8): undefined reference toserial::Serial::write(std::string const&)' serial_example.cc:(.text+0x5ee): undefined reference to serial::Serial::read(unsigned long)' serial_example.cc:(.text+0x6d8): undefined reference toserial::Serial::write(std::string const&)' serial_example.cc:(.text+0x6ff): undefined reference to serial::Serial::read(unsigned long)' serial_example.cc:(.text+0x7c8): undefined reference toserial::Serial::~Serial()' serial_example.cc:(.text+0x85c): undefined reference to serial::Serial::~Serial()' /tmp/ccLwdBgg.o: In functionserial::Serial::setTimeout(unsigned int, unsigned int, unsigned int, unsigned int, unsigned int)': serial_example.cc:(.text._ZN6serial6Serial10setTimeoutEjjjjj[_ZN6serial6Serial10setTimeoutEjjjjj]+0x4e): undefined reference to `serial::Serial::setTimeout(serial::Timeout&)' collect2: error: ld returned 1 exit status

After running make test again, output is:

`Running tests... Test project /home/localadmin/apps/serial-master/build Start 1: _ctest_serial_gtest_serial-test 1/2 Test #1: _ctest_serial_gtest_serial-test .........Failed 0.04 sec Start 2: _ctest_serial_gtest_serial-test-timer 2/2 Test #2: _ctest_serial_gtest_serial-test-timer ...Failed 0.04 sec

0% tests passed, 2 tests failed out of 2

Total Test time (real) = 0.09 sec

The following tests FAILED: 1 - _ctest_serial_gtest_serial-test (Failed) 2 - _ctest_serial_gtest_serial-test-timer (Failed) Errors while running CTest make: *** [test] Error 8 `

[slivingston]

I would not expect the bare g++ serial_example.cc -o serial to succeed. At least you need to tell the compiler where to find header files and the linker where to find object files.

Have you tried to make a custom CMakeLists.txt file for your case? If you are building without ROS, then there is one example shown at https://github.com/wjwwood/serial/issues/52#issuecomment-28848337. It may require some additions for list_ports, as noted at https://github.com/wjwwood/serial/issues/156#issuecomment-320784535