cmake报错Targets may link only to libraries. CMake is dropping the item.

Posted 2022-10-21 xiang_freedom

系统：macOS

代码：

    find_package(PythonInterp 3.0)
    find_package(PythonLibs 3.0)
    target_link_libraries（target,$PYTHON_LIBRARIES)

报错：

Targets may link only to libraries.  CMake is dropping the item.

打印PYTHON_LIBRARIES的值：

/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib

这里 提到cmake实际需要完整的dylib的路径才能找到。

查找cmake文档发现find_package(PythonLibs）已废弃：
用新的FindPython3：

    find_package(Python3 COMPONENTS Interpreter Development NumPy)
    target_link_libraries（target,$Python3_LIBRARIES)

Python3_LIBRARIES的值为：

/opt/homebrew/opt/python@3.9/Frameworks/Python.framework/Versions/3.9/lib/libpython3.9.dylib

问题解决。