对 `boost::system::generic_category() 的未定义引用

如何解决对 `boost::system::generic_category() 的未定义引用

我正在 Clion 中开发一个 cpp 项目。对于构建，我使用 cmake。上周末我从 ubuntu 18.04 升级到 20.04，从那时起我无法构建我的项目并出现错误： /usr/local/include/boost/system/error_code.hpp:221: undefined reference to `boost::system::generic_category()'。似乎链接中的某些内容不正确。我重新安装了所有软件包，尝试了不同的版本，但没有。我的 CMakeLists.txt 是：

cmake_minimum_required(VERSION 3.7)
project(pki_cpp)

set(CMAKE_CXX_STANDARD 11)
set(THREADS_PREFER_PTHREAD_FLAG ON)
#find_package(libmongocxx required)
find_package(mongocxx required)
find_package(bsoncxx required)
include_directories(${libmONGOCXX_INCLUDE_DIR})
include_directories(${LIBBSONCXX_INCLUDE_DIR})

include_directories(SYstem ./lib)
set(BOOST_ROOT /usr/lib/)

find_package(Boost 1.71.0 required COMPONENTS system chrono thread filesystem)
include_directories(${Boost_INCLUDE_DIR})
if(NOT Boost_FOUND)
    message(FATAL_ERROR "Could not find boost!")
endif()
find_package(Threads required)
find_package(OpenSSL required)


# A custom library
add_subdirectory(asnDatatypes)
include_directories({CMAKE_CURRENT_SOURCE_DIR} asnDatatypes)
set_property(TARGET asnLibrary PROPERTY POSITION_INDEPENDENT_CODE ON)
# end custom library

#cryptopp library
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/contrib/cmake")
find_package(CryptoPP required)
include_directories(${CRYPTOPP_INCLUDE_DIR})
link_directories(${CryptoPP_INCLUDE_DIR})
# end cryptopp

add_executable(pki_cpp main.cpp rootCA.cpp rootCA.h)
target_include_directories(pki_cpp PRIVATE ${Boost_INCLUDE_Dirs} ${libmONGOCXX_INCLUDE_Dirs} )
link_directories(pki_cpp ${Boost_LIBRARY_Dirs})
target_link_libraries(pki_cpp ${Boost_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ${Boost_FILESYstem_LIBRARY} ${Boost_SYstem_LIBRARY} ${Boost_LIBRARIES} Boost::system Threads::Threads  boost_system asnLibrary OpenSSL::SSL ${CRYPTOPP_LIBRARIES} ${libmONGOCXX_LIBRARIES} mongo::bsoncxx_shared mongo::mongocxx_shared ${CMAKE_THREAD_LIBS_INIT} ${Boost_FILESYstem_LIBRARY} ${Boost_SYstem_LIBRARY} Boost::system)

感谢任何帮助！

解决方法

那是很多东西，都是随机排序和注释掉的。明显的错误是无法链接 Boost System

我愿意

FIND_PACKAGE(Boost 1.65.0
     COMPONENTS system program_options REQUIRED)

LINK_DIRECTORIES(${Boost_LIBRARY_DIRS})
INCLUDE_DIRECTORIES(${Boost_INLUDE_DIRS})
LINK_LIBRARIES(${Boost_LIBRARIES})

或者，您可以特定并将特定的库链接到特定的目标

TARGET_LINK_LIBRARIES(mylib ${Boost_SYSTEM_LIBRARY})
TARGET_LINK_LIBRARIES(myexecutable ${Boost_THREAD_LIBRARY})