mirror of
https://github.com/python/cpython.git
synced 2025-11-03 23:21:29 +00:00
a38c2a61d5
Don't build _testcppext.cpp with -Wzero-as-null-pointer-constant when testing C++03: only use this compiler flag with C++11.
53 lines
1.4 KiB
Python
53 lines
1.4 KiB
Python
# gh-91321: Build a basic C++ test extension to check that the Python C API is
|
|
# compatible with C++ and does not emit C++ compiler warnings.
|
|
import sys
|
|
from test import support
|
|
|
|
from setuptools import setup, Extension
|
|
|
|
|
|
MS_WINDOWS = (sys.platform == 'win32')
|
|
|
|
|
|
SOURCE = support.findfile('_testcppext.cpp')
|
|
if not MS_WINDOWS:
|
|
# C++ compiler flags for GCC and clang
|
|
CPPFLAGS = [
|
|
# gh-91321: The purpose of _testcppext extension is to check that building
|
|
# a C++ extension using the Python C API does not emit C++ compiler
|
|
# warnings
|
|
'-Werror',
|
|
# Warn on old-style cast (C cast) like: (PyObject*)op
|
|
'-Wold-style-cast',
|
|
]
|
|
else:
|
|
# Don't pass any compiler flag to MSVC
|
|
CPPFLAGS = []
|
|
|
|
|
|
def main():
|
|
cppflags = list(CPPFLAGS)
|
|
if '-std=c++03' in sys.argv:
|
|
sys.argv.remove('-std=c++03')
|
|
std = 'c++03'
|
|
name = '_testcpp03ext'
|
|
else:
|
|
# Python currently targets C++11
|
|
std = 'c++11'
|
|
name = '_testcpp11ext'
|
|
|
|
cppflags = [*CPPFLAGS, f'-std={std}']
|
|
if std == 'c++11':
|
|
# Warn when using NULL rather than _Py_NULL in static inline functions
|
|
cppflags.append('-Wzero-as-null-pointer-constant')
|
|
|
|
cpp_ext = Extension(
|
|
name,
|
|
sources=[SOURCE],
|
|
language='c++',
|
|
extra_compile_args=cppflags)
|
|
setup(name=name, ext_modules=[cpp_ext])
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|