c++ - 在 CMake Env 中包含 libcurl

Question

我使用 Cmake 构建环境，它生成 Make 文件。我想包含 libcurl 库，因为我收到 curl API 的链接错误。在哪里包含用于静态链接的 libcurl 库。

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构建错误日志:

Linking C executable lwm2mclient
CMakeFiles/lwm2mclient.dir/core/objects.c.o: In function 'lwm2m_imp_actuate1':
objects.c:(.text+0x95): undefined reference to 'curl_global_init'
objects.c:(.text+0x9a): undefined reference to 'curl_easy_init'
objects.c:(.text+0xbd): undefined reference to 'curl_easy_setopt'
objects.c:(.text+0xd5): undefined reference to 'curl_easy_setopt'
objects.c:(.text+0xde): undefined reference to 'curl_easy_perform'
objects.c:(.text+0xef): undefined reference to 'curl_easy_strerror'
objects.c:(.text+0x111): undefined reference to 'curl_easy_cleanup'
objects.c:(.text+0x116): undefined reference to 'curl_global_cleanup'
collect2: ld returned 1 exit status

make[2]: *** [lwm2mclient] Error 1
make[1]: *** [CMakeFiles/lwm2mclient.dir/all] Error 2

Answer 1

在你的 cmake 文件(CMakelists.txt)中，你必须添加一个 link_directories，例如:

link_directories(your_libfile_directory)
add_executable(executable_name  file_c_cpp)
target_link_libraries(executable_name curl)

更多详情:http://www.cmake.org/cmake-tutorial/