在linux上編譯googletest程序openSUSE with g ++，make，cmakelists

Question

所以我試着用googletest庫（https://github.com/google/googletest）。首先，我用cmake的編譯它：

marton@linux-clwa:~/documents/github/googletest/googletest/cmake> cmake .. 
-- The CXX compiler identification is GNU 4.8.5 
-- The C compiler identification is GNU 4.8.5 
-- Check for working CXX compiler: /usr/bin/c++ 
-- Check for working CXX compiler: /usr/bin/c++ -- works 
-- Detecting CXX compiler ABI info 
-- Detecting CXX compiler ABI info - done 
-- Detecting CXX compile features 
-- Detecting CXX compile features - done 
-- Check for working C compiler: /usr/bin/cc 
-- Check for working C compiler: /usr/bin/cc -- works 
-- Detecting C compiler ABI info 
-- Detecting C compiler ABI info - done 
-- Detecting C compile features 
-- Detecting C compile features - done 
-- Found PythonInterp: /usr/local/bin/python (found version "3.4.5") 
-- Looking for include file pthread.h 
-- Looking for include file pthread.h - found 
-- Looking for pthread_create 
-- Looking for pthread_create - not found 
-- 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 
-- Configuring done 
-- Generating done 
-- Build files have been written to: /home/marton/documents/github/googletest/googletest/cmak 
e 
marton@linux-clwa:~/documents/github/googletest/googletest/cmake> make 
Scanning dependencies of target gtest 
[ 25%] Building CXX object CMakeFiles/gtest.dir/src/gtest-all.cc.o 
[ 50%] Linking CXX static library libgtest.a 
[ 50%] Built target gtest 
Scanning dependencies of target gtest_main 
[ 75%] Building CXX object CMakeFiles/gtest_main.dir/src/gtest_main.cc.o 
[100%] Linking CXX static library libgtest_main.a 
[100%] Built target gtest_main 

，並試圖使用g ++編譯它，使：

Thu Mar 16; 22:45:19; marton;~/documents/github/fmi_summer_2017/chisleni_metodi ; $ g++ -isystem /home/marton/documents/github/googletest/googletest/include -L/home/marton/documents/github/googletest/googletest -pthread -lgthread 002.razd_razl.cpp -o test 
/usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../x86_64-suse-linux/bin/ld: cannot find -lgthread 
collect2: error: ld returned 1 exit status 

我不知道，如果這個錯誤是由於我的編譯器/發行，但我已經安裝了這些包：

GCC-32位gcc48-32bit的glibc-devel的，32位libasan0-32bit libatomic1-32bit libgomp1-32bit libitm1-32bit

所以我認爲lgtest是這個問題和作爲糟糕的編碼器我決定刪除它，結果是一個未定義函數，命名空間和變量的大名單。

所以我試過這個回購：（https://github.com/snikulov/google-test-examples）。 一切工作正常，這意味着問題不在我的編譯器，但回購是使用cmakelists。

我在做什麼錯，我需要做些什麼來編譯我的程序？

我知道法西斯怪人會倒下來，但我搜索谷歌，YouTube，gtest回購，並沒有任何解釋如何通過g ++編譯你的程序你的測試的解釋。那我在哪裏可以找到關於這方面的信息？

使用make或CMakeLists更好嗎？

Answer 1

對於編譯，如果你想使用CMakeLists.txt，通過add_subdirectory添加到父類，你可以這樣做。 （從谷歌測試資料爲準）

在ProjectRoot/CMakeLists.txt

... 
set(GTEST_OUTPUT_PATH ${CMAKE_BINARY_DIR}/googletest) 
add_subdirectory(build_test) 
... 

在ProjectRoot/build_test/CMakeLists.txt

cmake_minimum_required(VERSION 2.8.11) 

# Download and unpack googletest at configure time 
configure_file(CMakeLists.txt.in ${GTEST_OUTPUT_PATH}/download/CMakeLists.txt) 

execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" . 
    RESULT_VARIABLE result 
WORKING_DIRECTORY ${GTEST_OUTPUT_PATH}/download) 
if(result) 
    message(FATAL_ERROR "CMake step for googletest failed: ${result}") 
endif() 
execute_process(COMMAND ${CMAKE_COMMAND} --build . 
    RESULT_VARIABLE result 
WORKING_DIRECTORY ${GTEST_OUTPUT_PATH}/download) 
if(result) 
    message(FATAL_ERROR "Build step for googletest failed: ${result}") 
endif() 

# Prevent overriding the parent project's compiler/linker 
# settings on Windows 
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE) 

# Add googletest directly to our build. This defines 
# the gtest and gtest_main targets. 
add_subdirectory(${GTEST_OUTPUT_PATH}/src 
       ${GTEST_OUTPUT_PATH}/build) 

在ProjectRoot/build_test/CMakeLists.txt.in

cmake_minimum_required(VERSION 2.8.2) 

project(googletest-download NONE) 

include(ExternalProject) 
ExternalProject_Add(googletest 
    GIT_REPOSITORY https://github.com/google/googletest.git 
    GIT_TAG   master 
    SOURCE_DIR  "${GTEST_OUTPUT_PATH}/src" 
    BINARY_DIR  "${GTEST_OUTPUT_PATH}/build" 
    CONFIGURE_COMMAND "" 
    BUILD_COMMAND  "" 
    INSTALL_COMMAND "" 
    TEST_COMMAND  "" 
) 

這是什麼使我們能夠做的是克隆一個新的副本GoogleTest從他們的回購，和然後用正確的命令參數構建它。 （你可以在完成後像往常一樣鏈接到它）。我建議嘗試設置它以確保在構建它的過程中沒有任何問題。 GTest的唯一要求是與C++ 98兼容的編譯器和make。您可以在此處看到完整（非常小）的要求：Linux Requirements