googletest & cmake - Неопределенные символы для архитектуры x86_64

Question

Я работаю над простым проектом C++, и я хотел использовать модульное тестирование, в частности googletest. Для начала я основал структуру своего проекта на https://github.com/snikulov/google-test-examples. Когда я клонировал его и тестировал, он работал отлично. Затем я переехал необходимые компоненты для моего проекта, и я получаю следующее сообщение об ошибке компоновщика:

Undefined symbols for architecture x86_64: 
    "Vector::Vector(int, float*)", referenced from: 
     cpp_vector_test_vector_operator_adder_Test::TestBody() in cpp_vector_test.cc.o 
    "Vector::~Vector()", referenced from: 
     cpp_vector_test_vector_operator_adder_Test::TestBody() in cpp_vector_test.cc.o 
    "Vector::operator==(Vector)", referenced from: 
     cpp_vector_test_vector_operator_adder_Test::TestBody() in cpp_vector_test.cc.o 
    "Vector::operator+(Vector)", referenced from: 
     cpp_vector_test_vector_operator_adder_Test::TestBody() in cpp_vector_test.cc.o 
ld: symbol(s) not found for architecture x86_64 
clang: error: linker command failed with exit code 1 (use -v to see invocation) 

я работал через это в течение нескольких часов в день или два между ними и не имел никакой удачи. Мой проект можно найти по адресу https://github.com/bi3mer/Bragi. Я играл вокруг с конфигурацией Cmake некоторое время я попытался запустить CMake так:

cmake -DBUILD_SHARED_LIBS=ON .. 

и регулярное:

cmake .. 

Особенно странным отметить, что бросает меня в том, что если У меня есть свой тестовый код:

#include "Vector.h" 
#include "gtest/gtest.h" 

TEST(cpp_vector_test, vector_operator_adder) 
{ 
    EXPECT_EQ(true, true); 
} 

Он будет работать нормально. Только однажды я пытаюсь создать экземпляр класса, чтобы произошла ошибка.

#include "Vector.h" 
#include "gtest/gtest.h" 

TEST(cpp_vector_test, vector_operator_adder) 
{ 
    Vector test = Vector(3); // throws error 
    EXPECT_EQ(true, true); 
} 

Я также смотрел другие темы, такие как gtest: Undefined symbols for architecture x86_64 error with clang++ and std::vector, но я понятия не имею, где настроечный скрипт откуда.

Основываясь на всем, что я нашел, похоже, что происходит несоответствие компилятора, я просто не уверен, как исправить это на основе всего, что я прочитал.

Я надеюсь, что вы можете помочь, чтобы клонировать:

git clone https://github.com/bi3mer/Bragi.git 

Я полагаю, что это проще, чем наклеивать в файлах и everying. Надеюсь, вы можете помочь, я включил вывод, когда пытаюсь построить ниже. Спасибо вам за помощь.

./build.sh 
-- The C compiler identification is AppleClang 8.0.0.8000042 
-- The CXX compiler identification is AppleClang 8.0.0.8000042 
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc 
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- works 
-- Detecting C compiler ABI info 
-- Detecting C compiler ABI info - done 
-- Detecting C compile features 
-- Detecting C compile features - done 
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ 
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- works 
-- Detecting CXX compiler ABI info 
-- Detecting CXX compiler ABI info - done 
-- Detecting CXX compile features 
-- Detecting CXX compile features - done 
-- Looking for pthread.h 
-- Looking for pthread.h - found 
-- Looking for pthread_create 
-- Looking for pthread_create - found 
-- Found Threads: TRUE 
-- Configuring done 
-- Generating done 
-- Build files have been written to: /Users/colan/Documents/work/Bragi/build 
Scanning dependencies of target googletest 
[ 10%] Creating directories for 'googletest' 
[ 20%] Performing download step (git clone) for 'googletest' 
Cloning into 'googletest'... 
Already on 'master' 
Your branch is up-to-date with 'origin/master'. 
[ 30%] No patch step for 'googletest' 
[ 40%] Performing update step for 'googletest' 
Current branch master is up to date. 
[ 50%] Performing configure step for 'googletest' 
-- The C compiler identification is AppleClang 8.0.0.8000042 
-- The CXX compiler identification is AppleClang 8.0.0.8000042 
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc 
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- works 
-- Detecting C compiler ABI info 
-- Detecting C compiler ABI info - done 
-- Detecting C compile features 
-- Detecting C compile features - done 
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ 
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- works 
-- Detecting CXX compiler ABI info 
-- Detecting CXX compiler ABI info - done 
-- Detecting CXX compile features 
-- Detecting CXX compile features - done 
-- Found PythonInterp: //anaconda/bin/python (found version "2.7.12") 
-- Looking for pthread.h 
-- Looking for pthread.h - found 
-- Looking for pthread_create 
-- Looking for pthread_create - found 
-- Found Threads: TRUE 
-- Configuring done 
-- Generating done 
CMake Warning: 
    Manually-specified variables were not used by the project: 

    CMAKE_ARCHIVE_OUTPUT_DIRECTORY_DEBUG 
    CMAKE_ARCHIVE_OUTPUT_DIRECTORY_RELEASE 


-- Build files have been written to: /Users/colan/Documents/work/Bragi/build/ext/gtest/src/googletest-build 
[ 60%] Performing build step for 'googletest' 
Scanning dependencies of target gmock 
[ 9%] Building CXX object googlemock/CMakeFiles/gmock.dir/__/googletest/src/gtest-all.cc.o 
[ 18%] Building CXX object googlemock/CMakeFiles/gmock.dir/src/gmock-all.cc.o 
[ 27%] Linking CXX static library libgmock.a 
[ 27%] Built target gmock 
Scanning dependencies of target gmock_main 
[ 36%] Building CXX object googlemock/CMakeFiles/gmock_main.dir/__/googletest/src/gtest-all.cc.o 
[ 45%] Building CXX object googlemock/CMakeFiles/gmock_main.dir/src/gmock-all.cc.o 
[ 54%] Building CXX object googlemock/CMakeFiles/gmock_main.dir/src/gmock_main.cc.o 
[ 63%] Linking CXX static library libgmock_main.a 
[ 63%] Built target gmock_main 
Scanning dependencies of target gtest 
[ 72%] Building CXX object googlemock/gtest/CMakeFiles/gtest.dir/src/gtest-all.cc.o 
[ 81%] Linking CXX static library libgtest.a 
[ 81%] Built target gtest 
Scanning dependencies of target gtest_main 
[ 90%] Building CXX object googlemock/gtest/CMakeFiles/gtest_main.dir/src/gtest_main.cc.o 
[100%] Linking CXX static library libgtest_main.a 
[100%] Built target gtest_main 
[ 70%] No install step for 'googletest' 
[ 80%] Completed 'googletest' 
[ 80%] Built target googletest 
Scanning dependencies of target Bragi_test 
[ 90%] Building CXX object CMakeFiles/Bragi_test.dir/test/cpp_vector_test.cc.o 
[100%] Linking CXX executable Bragi_test 
Undefined symbols for architecture x86_64: 
    "Vector::Vector(int, float*)", referenced from: 
     cpp_vector_test_vector_operator_adder_Test::TestBody() in cpp_vector_test.cc.o 
    "Vector::~Vector()", referenced from: 
     cpp_vector_test_vector_operator_adder_Test::TestBody() in cpp_vector_test.cc.o 
    "Vector::operator==(Vector)", referenced from: 
     cpp_vector_test_vector_operator_adder_Test::TestBody() in cpp_vector_test.cc.o 
    "Vector::operator+(Vector)", referenced from: 
     cpp_vector_test_vector_operator_adder_Test::TestBody() in cpp_vector_test.cc.o 
ld: symbol(s) not found for architecture x86_64 
clang: error: linker command failed with exit code 1 (use -v to see invocation) 
make[2]: *** [Bragi_test] Error 1 
make[1]: *** [CMakeFiles/Bragi_test.dir/all] Error 2 
make: *** [all] Error 2 
UpdateCTestConfiguration from :/Users/colan/Documents/work/Bragi/build/DartConfiguration.tcl 
UpdateCTestConfiguration from :/Users/colan/Documents/work/Bragi/build/DartConfiguration.tcl 
Test project /Users/colan/Documents/work/Bragi/build 
Constructing a list of tests 
Done constructing a list of tests 
Updating test list for fixtures 
Added 0 tests to meet fixture requirements 
Checking test dependency graph... 
Checking test dependency graph end 
test 1 
    Start 1: test1 
Could not find executable Bragi_test 
Looked in the following places: 
Bragi_test 
Bragi_test 
Release/Bragi_test 
Release/Bragi_test 
Debug/Bragi_test 
Debug/Bragi_test 
MinSizeRel/Bragi_test 
MinSizeRel/Bragi_test 
RelWithDebInfo/Bragi_test 
RelWithDebInfo/Bragi_test 
Deployment/Bragi_test 
Deployment/Bragi_test 
Development/Bragi_test 
Development/Bragi_test 

1: Test command: 
Unable to find executable: Bragi_test 
1/1 Test #1: test1 ............................***Not Run 0.00 sec 

0% tests passed, 1 tests failed out of 1 

Total Test time (real) = 0.00 sec 

The following tests FAILED: 
     1 - test1 (Not Run) 
Errors while running CTest 

Answer 1

Полный файл можно увидеть на GitHub: https://github.com/bi3mer/Bragi/blob/master/CMakeLists.txt#L27

Что это сводится к тому, добавляет СРК

file(GLOB SRC_FILES ${PROJECT_SOURCE_DIR}/src/*.cc) 

, а затем включить его в исполняемый файл

add_executable(${PROJECT_TEST_NAME} ${TEST_SRC_FILES} ${SRC_FILES}) 

Пример, который у меня был, не включал этот один шаг, который отбросил меня.

Спасибо за помощь.