我想用Cython包装一个包含C++和OpenMP代码的测试项目,并通过一个setup.py
文件用distutils构建它。我的文件内容如下所示:
from distutils.core import setup
from distutils.extension import Extension
from Cython.Build import cythonize
from Cython.Distutils import build_ext
modules = [Extension("Interface",
["Interface.pyx", "Parallel.cpp"],
language = "c++",
extra_compile_args=["-fopenmp"],
extra_link_args=["-fopenmp"])]
for e in modules:
e.cython_directives = {"embedsignature" : True}
setup(name="Interface",
cmdclass={"build_ext": build_ext},
ext_modules=modules)
与gcc一起使用-fopenmp
标志对OpenMP进行编译和链接。但是,如果我只是调用
cls ~/workspace/CythonOpenMP/src $ python3 setup.py build
无法识别此标志,因为编译器为clang:
running build
running build_ext
skipping 'Interface.cpp' Cython extension (up-to-date)
building 'Interface' extension
cc -Wno-unused-result -fno-common -dynamic -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I/usr/local/include -I/usr/local/opt/sqlite/include -I/usr/local/Cellar/python3/3.3.0/Frameworks/Python.framework/Versions/3.3/include/python3.3m -c Interface.cpp -o build/temp.macosx-10.8-x86_64-3.3/Interface.o -fopenmp
clang: warning: argument unused during compilation: '-fopenmp'
cc -Wno-unused-result -fno-common -dynamic -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I/usr/local/include -I/usr/local/opt/sqlite/include -I/usr/local/Cellar/python3/3.3.0/Frameworks/Python.framework/Versions/3.3/include/python3.3m -c Parallel.cpp -o build/temp.macosx-10.8-x86_64-3.3/Parallel.o -fopenmp
clang: warning: argument unused during compilation: '-fopenmp'
Parallel.cpp:24:10: warning: unknown pragma ignored [-Wunknown-pragmas]
#pragma omp parallel for
^
1 warning generated.
c++ -bundle -undefined dynamic_lookup -L/usr/local/lib -L/usr/local/opt/sqlite/lib build/temp.macosx-10.8-x86_64-3.3/Interface.o build/temp.macosx-10.8-x86_64-3.3/Parallel.o -o build/lib.macosx-10.8-x86_64-3.3/Interface.so -fopenmp
ld: library not found for -lgomp
clang: error: linker command failed with exit code 1 (use -v to see invocation)
error: command 'c++' failed with exit status 1
我已经尝试指定了gcc,但没有成功:
cls ~/workspace/CythonOpenMP/src $ python3 setup.py build --compiler=g++-4.7
running build
running build_ext
error: don't know how to compile C/C++ code on platform 'posix' with 'g++-4.7' compiler
我怎么告诉distutils使用gcc?
发布于 2013-05-24 22:42:56
尝试使用os.environ从setup.py内部设置"CC“环境变量。
发布于 2013-05-24 22:43:58
我刚刚看了一下distutils
源代码,--compiler
选项需要"unix“、"msvc”、"cygwin“、"mingw32”、"bcpp“或"emx”。它通过检查CC
环境变量来检查您想要的编译器名称。尝试像这样调用build:
CC=gcc python setup.py build
您不需要设置CXX
,它不会对此进行检查。
发布于 2019-09-16 18:15:00
根据this wiki的说法,Python3.4之后的版本不再支持MinGW。Windows3.7forWindows3.7for CPython是用MSC v.1916
编译的。当我尝试在distutils.cfg
中使用上面提到的方法时,我从distutils得到了一个错误:Unknown MS Compiler Version 1916
。看起来它在cygwincompiler.py
文件(也负责MinGW)中有一个msvcr库的硬编码表,该文件已知的最新版本是来自VS2010 /MSVC10.0的1600
。
https://stackoverflow.com/questions/16737260
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