After installing gtest, ./waf check still can't find it

David82 · October 5, 2022, 3:53pm

On WSL 2 Ubuntu:
./waf plane build succeeds
./waf check fails with check: gtest library is required
gtest libs are installed in /usr/lib/libgtest.a and /usr/lib/libgtest_main.a

How do I get ./waf check to realize that gtest libs exist?

David82 · October 5, 2022, 7:59pm

So there is some cfg.env.HAS_GTEST variable that is for some reason set to false.

github.com

ArduPilot/ardupilot/blob/0c459a69db23f28cc518e7d4bd0c82addb85ac86/wscript#L634


      
          
          
    print('Board configured to: {}'.format(env.BOARD))
          
          
def _build_cmd_tweaks(bld):
              if bld.cmd == 'check-all':
                  bld.options.all_tests = True
                  bld.cmd = 'check'
          
          
    if bld.cmd == 'check':
                  if not bld.env.HAS_GTEST:
                      bld.fatal('check: gtest library is required')
                  bld.options.clear_failed_tests = True
          
          
def _build_dynamic_sources(bld):
              if not bld.env.BOOTLOADER:
                  bld(
                      features='mavgen',
                      source='modules/mavlink/message_definitions/v1.0/all.xml',
                      output_dir='libraries/GCS_MAVLink/include/mavlink/v2.0/',
                      name='mavlink',
                      # this below is not ideal, mavgen tool should set this, but that's not

It gets set to true here:

github.com

ArduPilot/ardupilot/blob/02e23302be8b930a3abcd0ea2e174dd823ee2292/Tools/ardupilotwaf/gtest.py#L38


      
                  # gtest uses a function (getaddrinfo) that is supposed to be linked
                  # dynamically
                  cfg.msg(
                      'Gtest',
                      'statically linked tests not supported',
                      color='YELLOW',
                  )
                  return
          
          
    cfg.env.append_value('GIT_SUBMODULES', 'gtest')
              cfg.env.HAS_GTEST = True
          
          
@conf
          def libgtest(bld, **kw):
              kw['cxxflags'] = Utils.to_list(kw.get('cxxflags', [])) + ['-Wno-undef']
              kw.update(
                  source='modules/gtest/googletest/src/gtest-all.cc',
                  target='gtest/gtest',
                  includes='modules/gtest/googletest modules/gtest/googletest/include',
                  export_includes='modules/gtest/googletest/include',
                  name='GTEST',

Do I need to for some reason run that script? Why isn’t wscript smarter in that it can figure out in real-time whether or not gtest libs are installed?