C++ 如何使用qmake&；明格？

我需要远离cmake，所以我想在mingw上构建一个qmake项目。请帮我理解遗漏了什么。从中构建卡夫卡

main.cpp

#include <cppkafka/cppkafka.h>
using namespace std;
using namespace cppkafka;
int main() {
    Configuration config = {    // Create the config
        { "metadata.broker.list", "127.0.0.1:9092" }
    };
    Producer producer(config);    // Create the producer
    string message = "hey there!";    // Produce a message!
    producer.produce(MessageBuilder("my_topic").partition(0).payload(message));
    producer.flush();
    return 0;
}

命令

g++-Wl，-子系统，控制台-mthreads-o debug\cpp_kafka_ex.exe debug/main.o“C:\Program Files\RdKafka\bin\librdkafka.dll”“C:\Program Files\RdKafka\bin\librdkafka++.dll”-lpthread-lz-lstdc++“C:\Program Files\CppKafka\bin\libcppkaka.dll”

链接错误

debug/main.o:In function

std:：unique\u ptr:：~unique\u ptr（）：C:/Qt/Tools/mingw730\u 64/lib/gcc/x86\u 64-w64-mingw32/7.3.0/include/C++/bits/unique\ptr.h:268:对

cppkafka:：kafka:：KafkaHandleBase:：handleter:：operator（）（rd\u kafka*）的未定义引用 collect2.exe:错误：ld返回了1个退出状态

cmake

TEMPLATE = app
CONFIG += console c++14
CONFIG -= app_bundle
CONFIG -= qt
SOURCES += main.cpp
INCLUDEPATH += 'C:\Program Files\CppKafka\include' \
               'C:\Program Files\RdKafka\include' \
               'C:\boost_1_72_0' \
               'C:\Program Files\CppKafka\include\cppkafka'

LIBS +=  'C:\Program Files\RdKafka\bin\librdkafka.dll' \
         'C:\Program Files\RdKafka\bin\librdkafka++.dll' \
         -lpthread \
         -lz \
         -lstdc++ \
         'C:\Program Files\CppKafka\bin\libcppkafka.dll'

include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../include)
include_directories('C:\Program Files\RdKafka\include')
include_directories(C:\boost_1_72_0)

add_custom_target(examples)
macro(create_example example_name)
    string(REPLACE "_" "-" sanitized_name ${example_name})
    add_executable(${sanitized_name} EXCLUDE_FROM_ALL "${example_name}_example.cpp")
    target_link_libraries(${sanitized_name} cppkafka RdKafka::rdkafka Boost::boost Boost::program_options)
    add_dependencies(examples ${sanitized_name})
endmacro()

create_example(producer)
create_example(buffered_producer)
create_example(consumer)
create_example(consumer_dispatcher)
create_example(metadata)
create_example(consumers_information)

---

您需要将

dllexport

添加到

struct HandleDeleter

并重新生成

在

包含\cppkafka\kafka\u handle\u base.h之前

：

struct HandleDeleter {
        explicit HandleDeleter(const KafkaHandleBase* handle_base_ptr) : handle_base_ptr_{handle_base_ptr} {}
        void operator()(rd_kafka_t* handle);
    private:
        const KafkaHandleBase * handle_base_ptr_;
    };

之后：

struct CPPKAFKA_API HandleDeleter {
        explicit HandleDeleter(const KafkaHandleBase* handle_base_ptr) : handle_base_ptr_{handle_base_ptr} {}
        void operator()(rd_kafka_t* handle);
    private:
        const KafkaHandleBase * handle_base_ptr_;
    };

---

您需要将

dllexport

添加到

struct HandleDeleter

并重新生成

在

包含\cppkafka\kafka\u handle\u base.h之前

：

struct HandleDeleter {
        explicit HandleDeleter(const KafkaHandleBase* handle_base_ptr) : handle_base_ptr_{handle_base_ptr} {}
        void operator()(rd_kafka_t* handle);
    private:
        const KafkaHandleBase * handle_base_ptr_;
    };

之后：

struct CPPKAFKA_API HandleDeleter {
        explicit HandleDeleter(const KafkaHandleBase* handle_base_ptr) : handle_base_ptr_{handle_base_ptr} {}
        void operator()(rd_kafka_t* handle);
    private:
        const KafkaHandleBase * handle_base_ptr_;
    };

---

我试过了，它成功了，然后我重新编译了库并再次链接它（做了相同的更改），但现在它不起作用了！在添加

CPPKAFKA\u API

对CPPKAFKA:：KafkaHandleBase:：HandleDeleter:：operator（）（rd_kafka_s*）的未定义引用之前，

对

的未定义引用之后，

我尝试了这一点，然后我重新编译了库并再次链接了它（做了相同的更改），但现在它不起作用！在添加

CPPKAFKA\u API

对CPPKAFKA:：KafkaHandleBase:：HandleDeleter:：operator（）（rd_kafka_s*）的未定义引用之前，对

的未定义引用之后__`