避免使用swig包装时出现“未使用的typedef”警告

Question

我使用swig作为包装来从我的python代码调用C++函数。我的问题是，会生成以下类型的很多警告，因为我包含Boost库的一部分。

/usr/local/include/boost/math/special_functions/bessel.hpp:744:4: warning: unused typedef 
    'boost_static_assert_typedef_747' [-Wunused-local-typedef] 

有没有办法避免这种情况？我想用

-isystem /usr/local/include 

作为一个标志，而不是

-I /usr/local/include 

可以解决这个问题。但是我必须在哪里添加它？后一种选择是在我的setup.py目前实施：

#!/usr/bin/env python 

""" 
setup.py file for SWIG spherical_overlap 
""" 

from distutils.core import setup, Extension 


spherical_overlap_module = Extension('_spherical_overlap', 
         sources=['spherical_overlap_wrap.cxx', 'spherical_overlap.cpp'], 
          swig_opts=['-c++', '-py3'], 
          extra_compile_args =['-lboost_system '], 
          include_dirs = ['/usr/local/include'], 
          ) 

setup (name = 'spherical_overlap', 
     version = '0.1', 
     author  = "SWIG Docs", 
     description = """Simple swig spherical_overlap from docs""", 
     ext_modules = [spherical_overlap_module], 
     py_modules = ["spherical_overlap"], 
     ) 

Answer 1

，如果你想，只是为了避免警告你可以添加-Wno-unused-local-typedef选项