link cmake 在 c 中的外部 *.so 库

Question

我正在尝试在我的 C 项目中使用 libtidy。我构建整洁的代码并获得 *.so 文件。当我尝试通过 cmake 将此文件 link 添加到我的项目时，收到以下错误消息：

CMake Error at CMakeLists.txt:8 (TARGET_LINK_LIBRARIES):
 Cannot specify link libraries for target "GLBall" which is not built by
 this project.

-- Configuring incomplete, errors occurred!
See also "/root/isefa/build/CMakeFiles/CMakeOutput.log".

这是我的 CMakeLists.txt :

cmake_minimum_required(VERSION 3.0.0)
project(test C CXX)
set(CMAKE_BUILD_TYPE Release)
include_directories(include)
file(GLOB SOURCES "src/*.c")
#add_library (libtidy SHARED /usr/lib)
LINK_DIRECTORIES(/usr/lib/)
TARGET_LINK_LIBRARIES(GLBall libtidy)
add_executable(test ./bin)
install (TARGETS test DESTINATION /usr/lib)

Answer 1

首先你需要在 Cmake 中找到你的库（例如，这里是 Restbed 的片段）：

find_library(RESTBED_LIBRARY
         NAMES 
            restbed
         PATHS 
            ${RESTBED_ROOT}/build_release
            ${RESTBED_ROOT}/Release
)

if ( NOT RESTBED_LIBRARY )
        message( WARNING "Restbed library NOT FOUND - the respective targets won't be build")
else()
        message( STATUS "Restbed library : ${RESTBED_LIBRARY}")
endif( NOT RESTBED_LIBRARY )

我在文件夹 ${RESTBED_ROOT}/build_release 中有 librestbed.so。

然后你可以link你的目标喜欢

target_link_libraries( your_target_name ${RESTBED_LIBRARY} )

从 CMake 的角度来看，这就足够了。

link cmake 在 c 中的外部 *.so 库

link external *.so library in c by cmake

c

tidy

cmake