编译报错:undefined reference to `std::__cxx11::basic_string

本文介绍了在C++项目中遇到yaml-cpp库链接错误的问题,强调了正确引入头文件和配置CMakeLists.txt的重要性。通过在CMakeLists中设置必要的库和包含目录,确保了项目的编译链接成功。同时提供了两种不同的链接方式,帮助开发者避免类似问题。

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我在C++中使用yaml时会发生如题的报错,但并不是编译器版本问题。如果在文件中引入了

#include <yaml-cpp/yaml.h>

那么别忘记在Cmakeist中

set(ALL_TARGET_LIBRARIES "")
find_package(PkgConfig REQUIRED)
pkg_check_modules(YAML_CPP REQUIRED yaml-cpp)
include_directories(${YAML_CPP_INCLUDEDIR})
list(APPEND ALL_TARGET_LIBRARIES ${YAML_CPP_LIBRARIES})
target_link_libraries(test ${ALL_TARGET_LIBRARIES})

也不必和我一样,也可以不要ALL_TARGET_LIBRARIES,直接将${YAML_CPP_INCLUDEDIR}加入到target_link_libraries()中第二个参数后

/tmp/ccVWbV48.o: In function `queryDeliveriesHandler(__natsConnection*, __natsSubscription*, __natsMsg*, void*)': nats.cpp:(.text+0x1ef): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)' nats.cpp:(.text+0x22e): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)' nats.cpp:(.text+0x497): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()' nats.cpp:(.text+0x4a3): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()' nats.cpp:(.text+0x4e5): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()' nats.cpp:(.text+0x4f1): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()' /tmp/ccVWbV48.o: In function `requestDeliveries(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': nats.cpp:(.text+0x54f): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::c_str() const' nats.cpp:(.text+0x56f): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::c_str() const' /tmp/ccVWbV48.o: In function `main': nats.cpp:(.text+0x77f): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)' nats.cpp:(.text+0x7a0): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)' nats.cpp:(.text+0x7bf): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()' nats.cpp:(.text+0x7d7): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()' nats.cpp:(.text+0x849): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()' nats.cpp:(.text+0x866): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()' collect2: error: ld returned 1 exit status
最新发布
03-08
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