我似乎无法获得我正在构建的库来正确链接我的GoogleTest单元测试二进制文件。使用GoogleTest和CMake测试C库的单元
Linking CXX executable ../../target/unit_tests
cd /Users/ebenoist/development/mylib/build/test && /usr/local/Cellar/cmake/2.8.12.2/bin/cmake -E cmake_link_script CMakeFiles/unit_tests.dir/link.txt --verbose=0
Undefined symbols for architecture x86_64:
"a_function_in_my_lib(int, int, int)", referenced from:
test_my_lib_AssertionTrue_Test::TestBody() in unit_tests.cc.o
我有以下结构的项目:
|-- src
| | -- mylib.c
| | -- mylib.h
| | -- mylibcli.c
|-- build
| | ... CMakeStuff
|-- target
| | -- mylib.a
|-- test
| | -- unit_tests.cc
的CMakeList.txt在我的测试目录如下:
include_directories(${gtest_SOURCE_DIR}/include ${COMMON_INCLUDES})
set(test_sources unit_tests.cc)
add_executable(unit_tests ${test_sources})
target_link_libraries(unit_tests gtest gtest_main mylib)
add_test(unit-tests unit_tests)
它在生成的链接阶段失败
我知道函数存在,并且库编译得很好,因为我有一个针对我的src /库中的库的可执行文件。
如何让我的单元测试正确链接到我正在构建的库?
更多参考:
的的CMakeLists.txt在SRC/
include_directories(${COMMON_INCLUDES})
# LIBRARY
add_library(mylib STATIC mylib.c)
# CLI TOOL
add_executable(mylibcli mylibcli.c)
target_link_libraries (mylibcli mylib)
的的CMakeLists.txt在/
cmake_minimum_required (VERSION 2.6)
project (mylib)
enable_testing()
option(test "Build all tests." OFF)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libc++")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/../target)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/../target)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/../target)
set(COMMON_INCLUDES ${PROJECT_SOURCE_DIR}/src)
add_subdirectory(src)
if (test)
add_subdirectory(vendor/gtest-1.7.0)
add_subdirectory(test)
endif()
'make VERBOSE = 1'将帮助您确定哪些符号完全未定义 – user3159253
以上输出来自make VERBOSE = 1。未定义的符号在我试图链接的库中定义。这适用于CLI,但不适用于我的单元测试。 – Erik
'VERBOSE = 1'回应实际的链接命令。如果链接正确并且顺序正确,那么检查unit_test.cc.o中的符号是否与libmylib.so中定义的符号相匹配(如果您不熟悉,相关命令为'nm')。 – Anycorn