Make error

[Luke20000429]

Hi, I tried to compile on gnuradio-3.10.3 but received the error

[  0%] Built target pygen_apps_9a6dd
[  4%] Generating documentation with doxygen
[  9%] Building CXX object lib/CMakeFiles/gnuradio-aoa.dir/MUSIC_lin_array_impl.cc.o
[  9%] Built target copy_module_for_tests
[ 18%] Generating __init__.pyc, shift_phase_multiple_hier.pyc, calc_phase_diff_multiple_hier.pyc
[ 18%] Building CXX object lib/CMakeFiles/gnuradio-aoa.dir/rootMUSIC_linear_array_impl.cc.o
[ 22%] Generating __init__.pyo, shift_phase_multiple_hier.pyo, calc_phase_diff_multiple_hier.pyo
[ 22%] Built target pygen_python_aoa_bb291
[ 27%] Building CXX object lib/CMakeFiles/gnuradio-aoa.dir/shift_phase_impl.cc.o
[ 27%] Built target doxygen_target
[ 31%] Building CXX object lib/CMakeFiles/gnuradio-aoa.dir/calc_phase_diff_impl.cc.o
/home/liuxs/workarea/GR-DOA/gr-aoa/lib/shift_phase_impl.cc: In member function ‘virtual int gr::aoa::shift_phase_impl::work(int, gr_vector_const_void_star&, gr_vector_void_star&)’:
/home/liuxs/workarea/GR-DOA/gr-aoa/lib/shift_phase_impl.cc:64:28: warning: comparison of integer expressions of different signedness: ‘size_t’ {aka ‘long unsigned int’} and ‘int’ [-Wsign-compare]
   64 |       for (size_t j = 0; j < noutput_items; j++) {
      |                          ~~^~~~~~~~~~~~~~~
/home/liuxs/workarea/GR-DOA/gr-aoa/lib/calc_phase_diff_impl.cc: In member function ‘virtual int gr::aoa::calc_phase_diff_impl::work(int, gr_vector_const_void_star&, gr_vector_void_star&)’:
/home/liuxs/workarea/GR-DOA/gr-aoa/lib/calc_phase_diff_impl.cc:75:28: warning: comparison of integer expressions of different signedness: ‘size_t’ {aka ‘long unsigned int’} and ‘int’ [-Wsign-compare]
   75 |       for (size_t j = 0; j < noutput_items; j++) {
      |                          ~~^~~~~~~~~~~~~~~
[ 36%] Building CXX object lib/CMakeFiles/gnuradio-aoa.dir/precise_moving_average_impl.cc.o
[ 40%] Building CXX object lib/CMakeFiles/gnuradio-aoa.dir/head_w_rst_impl.cc.o
[ 45%] Building CXX object lib/CMakeFiles/gnuradio-aoa.dir/correlate_impl.cc.o
[ 50%] Linking CXX shared library libgnuradio-aoa.so
/usr/bin/ld: /usr/local/lib/libspdlog.a(spdlog.cpp.o): relocation R_X86_64_TPOFF32 against `_ZGVZN6spdlog7details2os9thread_idEvE3tid' can not be used when making a shared object; recompile with -fPIC
collect2: error: ld returned 1 exit status
make[2]: *** [lib/CMakeFiles/gnuradio-aoa.dir/build.make:183: lib/libgnuradio-aoa.so.1.0.0.0] Error 1
make[1]: *** [CMakeFiles/Makefile2:273: lib/CMakeFiles/gnuradio-aoa.dir/all] Error 2
make: *** [Makefile:141: all] Error 2

It looks like the error came from spdlog. Previously, when I ran cmake .., I was getting

CMake Error at /usr/share/cmake-3.16/Modules/CMakeFindDependencyMacro.cmake:47 (find_package):
  By not providing "Findspdlog.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "spdlog", but
  CMake did not find one.

  Could not find a package configuration file provided by "spdlog" with any
  of the following names:

    spdlogConfig.cmake
    spdlog-config.cmake

  Add the installation prefix of "spdlog" to CMAKE_PREFIX_PATH or set
  "spdlog_DIR" to a directory containing one of the above files.  If "spdlog"
  provides a separate development package or SDK, be sure it has been
  installed.
Call Stack (most recent call first):
  /usr/lib/x86_64-linux-gnu/cmake/gnuradio/GnuradioConfig.cmake:13 (find_dependency)
  CMakeLists.txt:30 (find_package)

Therefore, I installed spdlog manually through their repo, I am not sure if the version we are using is the same, but CMake generate build file successfully.

-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.29.1")
-- Checking for module 'gmp'
--   Found gmp, version 6.2.0
-- Found GMP: /usr/lib/x86_64-linux-gnu/libgmpxx.so
-- Using GMP.
-- Found MPLIB: /usr/lib/x86_64-linux-gnu/libgmpxx.so
-- Found Boost: /usr/lib/x86_64-linux-gnu/cmake/Boost-1.71.0/BoostConfig.cmake (found suitable version "1.71.0", minimum required is "1.71.0") found components: date_time program_options system regex thread unit_test_framework
-- Found Volk: Volk::volk
-- User set python executable /usr/bin/python3
-- Found PythonInterp: /usr/bin/python3 (found version "3.8.10")
-- Found PythonLibs: /usr/lib/x86_64-linux-gnu/libpython3.8.so (found suitable exact version "3.8.10")
-- Check if the system is big endian
-- Searching 16 bit integer
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of unsigned short
-- Check size of unsigned short - done
-- Using unsigned short
-- Check if the system is big endian - little endian
-- Performing Test HAVE_VISIBILITY_HIDDEN
-- Performing Test HAVE_VISIBILITY_HIDDEN - Success
-- Performing Test HAVE_WARN_SIGN_COMPARE
-- Performing Test HAVE_WARN_SIGN_COMPARE - Success
-- Performing Test HAVE_WARN_ALL
-- Performing Test HAVE_WARN_ALL - Success
-- Performing Test HAVE_WARN_NO_UNINITIALIZED
-- Performing Test HAVE_WARN_NO_UNINITIALIZED - Success
-- Found Git: /usr/bin/git
-- Extracting version information from git describe...
fatal: No names found, cannot describe anything.
-- Eigen3 found
-- Using install prefix: /usr/local
-- Building for version: 1.0.0.0 / 1.0.0
-- No C++ unit tests... skipping
-- PYTHON and GRC components are enabled
-- Python checking for pygccxml - found
-- Found PythonLibs: /usr/lib/x86_64-linux-gnu/libpython3.8.so
-- Performing Test HAS_FLTO
-- Performing Test HAS_FLTO - Success
-- LTO enabled
-- Configuring done
-- Generating done
...

[MarcinWachowiak]

You might want to take a look at this issue: https://github.com/gabime/spdlog/issues/1405 It tackles the exact error you are experiencing.

[Luke20000429]

Thanks, I can compile now!