Question

我正在尝试在Linux VM上编译C ++程序。该程序正在使用boost asio。 CMakeLists.txt的外观如下：

project(server_c++) 
cmake_minimum_required(VERSION 2.8.4)
set(CMAKE_BINARY_DIR D:\\Sources\\server_c++\\build)

message(STATUS "start running cmake...")
    set(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} "/u/refdev64/boost/v1.66.0/include/")
    set(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} "/u/refdev64/boost/v1.66.0/")
    FIND_PACKAGE(Boost)

if (Boost_FOUND)
    INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIR})
    set(Boost_USE_STATIC_LIBS OFF)
    ADD_DEFINITIONS( "-DHAS_BOOST" )
endif()

add_executable(Server src/main.cpp src/TcpServer.cpp include/TcpServer.h src/Server.cpp include/Server.h include/ServerParameters.h include/StreamParameters.h include/Message.h src/MessageHandler.cpp include/MessageHandler.h src/Channel_setup.cpp include/Channel_setup.h)
set_property(TARGET Server PROPERTY CXX_STANDARD 11)
find_package(Boost REQUIRED COMPONENTS system)
target_link_libraries(Server boost_system)

不幸的是，启动cmake CMakeLists.txt时，出现以下错误：

-- start running cmake...
-- Boost version: 1.66.0
-- Boost version: 1.66.0
-- Found the following Boost libraries:
--   system
-- Configuring done
-- Generating done
-- Build files have been written to: /root/Documents
Linking CXX executable Server
/usr/bin/ld: cannot find -lboost_system
collect2: ld returned 1 exit status
gmake[2]: *** [Server] Error 1
gmake[1]: *** [CMakeFiles/Server.dir/all] Error 2
gmake: *** [all] Error 2

由于所有目录都是正确的，并且cmake找到boost，所以我不会出错。我在CMakeLists.txt中缺少任何内容吗？

Cmake版本是：2.8.12.2 g ++版本是：5.1.0。

谢谢！

Answer 1

检查主机中是否安装了boost_system库。

在Ubuntu 16.04发行版中，您可以执行以下操作：

$ dpkg -l | grep libboost

如果未安装，则可以使用：

$ sudo apt-get install  libboost-system1.58  libboost-system1.58-dev

CMake找不到-lboost_system

1 个答案: