cc1plus: warning: command line option “-Wstrict-prototypes” is valid for Ada/C/ObjC but not for C++

Question

I am building a C++ extension for use in Python. I am seeing this warning being generated during the compilation process - when a type:

python setup.py build         


        

Answer 1

The following code fragment in setup.py will remove all instances of this pesky flag:

# Remove the "-Wstrict-prototypes" compiler option, which isn't valid for C++.
import distutils.sysconfig
cfg_vars = distutils.sysconfig.get_config_vars()
for key, value in cfg_vars.items():
    if type(value) == str:
        cfg_vars[key] = value.replace("-Wstrict-prototypes", "")
# ==================================