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Troubles getting boost::logger to compile

本文关键字:记录器 编译 麻烦      更新时间:2023-10-16

我正在努力运行一些boost::logging演示应用程序。我有以下几点:logger.cpp

#include <iostream>
#include <boost/fusion/iterator/equal_to.hpp>
#include <boost/log/core.hpp>
#include <boost/log/trivial.hpp>
#include <boost/log/expressions.hpp>
#include <boost/log/utility/setup/file.hpp>
namespace logging = boost::log;
namespace src = boost::log::sources;
namespace sinks = boost::log::sinks;
namespace keywords = boost::log::keywords;
namespace expr = boost::log::expressions;

void init()
{
logging::add_file_log("sample.log");
logging::core::get()->set_filter
(   
logging::trivial::severity >= logging::trivial::info
);
}
int main(void) {
init();
std::cout <<"Hello World!";

CMakeLists.txt

cmake_minimum_required(VERSION 2.6)
project(LOGGER)
set(BOOST_INCLUDEDIR "/path/to/env/include")
set(BOOST_ROOT "/path/to/env/include")
find_package(Boost REQUIRED)
message(STATUS Boost_LIBRARIES:)
message (STATUS ${Boost_LIBRARIES})
message(STATUS BOOST_INCLUDEDIR:)
message(STATUS ${BOOST_INCLUDEDIR})
ADD_EXECUTABLE(logger logger.cpp)
target_include_directories(logger PUBLIC ${BOOST_INCLUDEDIR})
target_link_libraries(logger Boost::boost ${Boost_LIBRARIES})
set (CMAKE_CXX_FLAGS "-g -Wall")

make我得到这个:

$ make
Scanning dependencies of target logger
[ 50%] Building CXX object CMakeFiles/logger.dir/logger.cpp.o
[100%] Linking CXX executable logger
/usr/bin/ld: cannot find -lBoost::boost
collect2: error: ld returned 1 exit status
CMakeFiles/logger.dir/build.make:94: recipe for target 'logger' failed
make[2]: *** [logger] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/logger.dir/all' failed
make[1]: *** [CMakeFiles/logger.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2

我不明白为什么! 我错过了什么或做错了什么?

第一个问题是因为你没有包含正确的头文件。对于add_file_log需要<boost/log/utility/setup/file.hpp>头文件。

对于第二个问题(这应该是第二个问题,没有人喜欢移动的目标(,如果您阅读FindBoost参考资料,您将看到

Boost::boost                Target for header-only dependencies
(Boost include directory)

这不是您需要链接的库。将其从target_link_libraries命令中删除。