C++ 在CMake中将静态库与测试应用程序一起使用时发生链接器错误
我的静态库的项目结构与中定义的完全相同,我的CMakeList.txt也完全相同:C++ 在CMake中将静态库与测试应用程序一起使用时发生链接器错误,c++,cmake,centos7,linker-errors,C++,Cmake,Centos7,Linker Errors,我的静态库的项目结构与中定义的完全相同,我的CMakeList.txt也完全相同: cmake_minimum_required (VERSION 2.8) project (project_name) add_subdirectory (src) add_subdirectory (test) 我想在静态库之后构建测试文件夹。我还添加了add_test(),但唯一的问题是我的测试目录不包含单元测试,而是实际的测试应用程序,如以下代码: #include <iostream&g
cmake_minimum_required (VERSION 2.8)
project (project_name)
add_subdirectory (src)
add_subdirectory (test)
我想在静态库之后构建测试文件夹。我还添加了add_test()
,但唯一的问题是我的测试目录不包含单元测试,而是实际的测试应用程序,如以下代码:
#include <iostream>
main() {
/*
this code uses static library functions in it. There is not Unit Test defined in it.
*/
}
libdal/test/CMakeList.txt
cmake_minimum_required(VERSION 3.12)
project(dal)
# Flags Variables
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
# Include Directeries
include_directories(${CPP_KAFKA_INC})
include_directories(${CPP_MYSQL_INC})
include_directories(${CPP_ALTIBASE_INC})
include_directories(${AFN_STATE_INC})
include_directories(${AFN_DAL_INC})
include_directories(${AFN_COMMONS_INC})
include_directories(${AFN_CONFIG_INC})
include_directories(${SQL_ODBC_INC})
# Executable Target(s)
file(GLOB SOURCES *.cpp)
add_library(${PROJECT_NAME} ${SOURCES})
target_link_libraries(${PROJECT_NAME}
${AFN_LIB}
"-lafinit_state"
"-luuid"
"-lz"
"-lpthread"
${PQXX_LIB}
${PQ_LIB}
"-lmysqlcppconn"
${libmscpp}
${kafkacpplib}
${rdkafkalib}
${rdkafkacpplib}
afiniti_config $<$<CONFIG:DEBUG>:-lgcov>
)
# Installation
install(CODE "MESSAGE(\"Installing ${PROJECT_NAME} \")")
install(TARGETS ${PROJECT_NAME}
RUNTIME DESTINATION bin
LIBRARY DESTINATION lib
ARCHIVE DESTINATION lib)
cmake_minimum_required(VERSION 3.12)
project(testdal)
# Flags Variables
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17" )
option(DAL_PUSH_TESTER "enable DAL push tester" ON)
# Include Directeries
include_directories(${CPP_KAFKA_INC})
include_directories(${AFN_DAL_INC})
include_directories(${CPP_MYSQL_INC})
include_directories(${AFN_STATE_INC})
include_directories(${AFN_CONFIG_INC})
add_executable(${PROJECT_NAME} main.cpp)
target_link_libraries(${PROJECT_NAME}
${AFN_LIB}
"-lmysqlcppconn"
"-luuid"
"-lz"
${libmscpp}
"-ldal"
${PQXX_LIB}
${PQ_LIB}
${kafkacpplib}
${rdkafkalib}
${rdkafkacpplib}
"-lafinit_state"
"-luuid"
"-lpthread"
afiniti_config $<$<CONFIG:DEBUG>:-lgcov>
${AFN_LICENSE_LIB} "-laf_license_manager"
)
# Installation
install(CODE "MESSAGE(\"Installing ${PROJECT_NAME} \")")
install(TARGETS ${PROJECT_NAME}
RUNTIME DESTINATION bin/tests
LIBRARY DESTINATION lib
ARCHIVE DESTINATION lib)
if (DAL_PUSH_TESTER)
add_executable(dal_push_tester dal_push_tester.cpp)
target_link_libraries(dal_push_tester
${AFN_LIB}
"-lmysqlcppconn"
"-luuid"
"-lz"
${libmscpp}
"-ldal"
${PQXX_LIB}
${PQ_LIB}
${kafkacpplib}
${rdkafkalib}
${rdkafkacpplib}
"-lafinit_state"
"-luuid"
"-lpthread"
afiniti_config $<$<CONFIG:DEBUG>:-lgcov>
${AFN_LICENSE_LIB} "-laf_license_manager"
)
# Installation
install(CODE "MESSAGE(\"Installing dal_push_tester \")")
install(TARGETS dal_push_tester
RUNTIME DESTINATION bin/tests
LIBRARY DESTINATION lib
ARCHIVE DESTINATION lib)
endif ()
cmake_最低要求(3.12版)
项目(testdal)
#标志变量
设置(CMAKE_CXX_标志“${CMAKE_CXX_标志}-std=c++17”)
选项(DAL_推压测试仪“启用DAL推压测试仪”打开)
#包括导演
包括目录(${CPP_KAFKA_INC})
包括目录(${AFN\u DAL\u INC})
包括目录(${CPP\u MYSQL\u INC})
包括目录(${AFN\u STATE\u INC})
包含目录(${AFN\u CONFIG\u INC})
添加可执行文件(${PROJECT\u NAME}main.cpp)
目标链接库(${PROJECT\u NAME}
${AFN_LIB}
“-LMYSQLCPCPCONN”
“-luuid”
“-lz”
${libmscpp}
“-ldal”
${PQXX_LIB}
${PQ_LIB}
${kafkacplib}
${rdkafkalib}
${rdkafkacplib}
“-拉菲尼特州”
“-luuid”
“-lpthread”
afiniti_配置$
${AFN_LICENSE_LIB}“-laf_LICENSE_manager”
)
#装置
安装(代码“消息(\“安装${PROJECT\u NAME}\”))
安装(目标${PROJECT\u NAME}
运行时目标箱/测试
库目标库
存档目标库)
if(DAL_推力测试仪)
添加可执行文件(dal_push_tester dal_push_tester.cpp)
目标链接库(dal推送测试仪
${AFN_LIB}
“-LMYSQLCPCPCONN”
“-luuid”
“-lz”
${libmscpp}
“-ldal”
${PQXX_LIB}
${PQ_LIB}
${kafkacplib}
${rdkafkalib}
${rdkafkacplib}
“-拉菲尼特州”
“-luuid”
“-lpthread”
afiniti_配置$
${AFN_LICENSE_LIB}“-laf_LICENSE_manager”
)
#装置
安装(代码“消息(\“安装dal\U推压测试仪”)
安装(目标)dal_push_测试仪
运行时目标箱/测试
库目标库
存档目标库)
endif()
这个问题已经在网站上提出了好几次,但是您的CMake文件还有一些其他问题需要解释
问题是链接器不知道在哪里可以找到dal
库,因为您只提供了“-ldal”
,而没有指向库的完整路径或任何内容。您只需在target\u link\u libraries()
中使用CMake库目标名称(dal
)即可解决此问题,因为它是在同一CMake调用中较早定义的
target_link_libraries(${PROJECT_NAME}
${AFN_LIB}
"-lmysqlcppconn"
"-luuid"
"-lz"
${libmscpp}
dal # <------ Note the change on this line.
${PQXX_LIB}
${PQ_LIB}
${kafkacpplib}
${rdkafkalib}
${rdkafkacpplib}
"-lafinit_state"
"-luuid"
"-lpthread"
afiniti_config $<$<CONFIG:DEBUG>:-lgcov>
${AFN_LICENSE_LIB} "-laf_license_manager"
)
此外,手动修改此行中的CMAKE\u CXX\u标志
:
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
他非常气馁。设置C++标准时,应使用:
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
或者本文讨论的其他更现代的方法之一
我鼓励您浏览一些关于的内容。这个问题在网站上已经提出过好几次,但是您的CMake文件还有一些其他问题需要解释 问题是链接器不知道在哪里可以找到
dal
库,因为您只提供了“-ldal”
,而没有指向库的完整路径或任何内容。您只需在target\u link\u libraries()
中使用CMake库目标名称(dal
)即可解决此问题,因为它是在同一CMake调用中较早定义的
target_link_libraries(${PROJECT_NAME}
${AFN_LIB}
"-lmysqlcppconn"
"-luuid"
"-lz"
${libmscpp}
dal # <------ Note the change on this line.
${PQXX_LIB}
${PQ_LIB}
${kafkacpplib}
${rdkafkalib}
${rdkafkacpplib}
"-lafinit_state"
"-luuid"
"-lpthread"
afiniti_config $<$<CONFIG:DEBUG>:-lgcov>
${AFN_LICENSE_LIB} "-laf_license_manager"
)
此外,手动修改此行中的CMAKE\u CXX\u标志
:
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
他非常气馁。设置C++标准时,应使用:
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
或者本文讨论的其他更现代的方法之一
我鼓励您浏览一些关于项目结构的内容。项目结构在某种程度上是用户的偏好。我不认为结构与您的问题有关。@drescherjm谢谢您指出,我已经在我的问题中添加了它们。项目结构有点像用户偏好的东西。我不认为结构与你的问题有关。@drescherjm谢谢你指出,我已经在我的问题中添加了它们。谢谢你指出我的错误,似乎是
-ldal
是罪魁祸首谢谢你指出我的错误,似乎是-ldal
是罪魁祸首