Question

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

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

在您的cmake文件（CMakelists.txt）中，您必须添加link_directories，例如：

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

有关详情：http://www.cmake.org/cmake-tutorial/

包括CMake Env中的libcurl

1 个答案: