吾编译代码，尽可能要求去掉警告．今天编译注意到有这样一个：
In file included from /usr/include/python2.7/numpy/ndarraytypes.h:1777:0, from /usr/include/python2.7/numpy/ndarrayobject.h:18, from /usr/include/python2.7/numpy/arrayobject.h:4, from gh_python.h:30, from gh_python.cpp:1: /usr/include/python2.7/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp] #warning "Using deprecated NumPy API, disable it by " \
这个警告到处都有，应该去掉，这样编译时很清爽．先从网上搜索了一下，没找到有效的解决办法（都说是要安装什么，安装了其实没用）．怎么办？
吾打开ndarraytypes.h：
/* * Use the keyword NPY_DEPRECATED_INCLUDES to ensure that the header files * npy_*_*_deprecated_api.h are only included from here and nowhere else. */ #ifdef NPY_DEPRECATED_INCLUDES #error "Do not use the reserved keyword NPY_DEPRECATED_INCLUDES." #endif #define NPY_DEPRECATED_INCLUDES #if !defined(NPY_NO_DEPRECATED_API) || \ (NPY_NO_DEPRECATED_API < NPY_1_7_API_VERSION) #include "npy_1_7_deprecated_api.h" #endif
先定义了一个NPY_DEPRECATED_INCLUDES，被警告．
于是定义了#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION，警告消失．
希望能给同样要求的朋友，带来一点帮助．
后来在github上有人问这个总是，吾提供了本博文：
https://github.com/scipy/scipy/issues/5889#issuecomment-698615330
有人回复：
Pass define_macros=[("NPY_NO_DEPRECATED_API", "NPY_1_7_API_VERSION")] as an option to the distutils.extension.Extension constructor in your setup.py
吾觉得还是直接定义的好。
