c – 编译错误:`’error_category’没有用g 6.3.0命名类型`
我尝试编译这个C /
Python库
https://bitbucket.org/fluiddyn/fluidfft
如果安装了mpi4py,它运行良好. 如果未安装mpi4py,则无法编译不使用MPI的代码. 编译Cython文件时出现错误.错误很长,它开始于: In file included from /usr/include/c++/6/bits/ios_base.h:46:0,from /usr/include/c++/6/ios:42,from /usr/include/c++/6/ostream:38,from /usr/include/c++/6/iostream:39,from src_cpp/base/base_fft.h:10,from fluidfft/fft2d/fft2d_with_fftw1d.cpp:543: /usr/include/c++/6/system_error:143:31: error: ‘error_category’ does not name a type error_code(int __v,const error_category& __cat) noexcept ^~~~~~~~~~~~~~ /usr/include/c++/6/system_error:152:27: error: ‘error_category’ does not name a type assign(int __v,const error_category& __cat) noexcept ^~~~~~~~~~~~~~ /usr/include/c++/6/system_error:172:11: error: ‘error_category’ does not name a type const error_category& ^~~~~~~~~~~~~~ /usr/include/c++/6/system_error:191:11: error: ‘error_category’ does not name a type const error_category* _M_cat; [...] 我想这可能是一个C 11问题(http://en.cppreference.com/w/cpp/error/error_category),但我没有看到如何解决问题. 编译命令是 g++ -pthread -fwrapv -O3 -Wall -Wno-unused-result -Wsign-compare -Wno-unused-result -Wsign-compare -fwrapv -O3 -Wall -fPIC -I/home/users/me/opt/miniconda3/include/python3.6m -I/home/users/me/opt/miniconda3/include -Isrc_cy -Ifluidfft/fft2d -Ifluidfft/fft3d -Isrc_cpp/base -Isrc_cpp/3d -Isrc_cpp/2d -Iinclude -I/home/users/me/opt/miniconda3/lib/python3.6/site-packages/numpy/core/include -c fluidfft/fft2d/fft2d_with_fftw1d.cpp -o build/temp.linux-x86_64-3.6/fluidfft/fft2d/fft2d_with_fftw1d.o 编辑最小,完整和可验证的示例 感谢Ashwin Vishnu(见https://bitbucket.org/fluiddyn/fluidfft/issues/7/fluidfft-installation-fails-without-mpi4py),我可以发布一个最小的例子 /* test.cpp */ #include <Python.h> #include <string.h> #include <stdio.h> #include <cpu.h> #include <sys/time.h> #include <complex> #include <iostream> int main() { std::cout<<"Hello world"; return 0; } 从fluidfft目录编译如下: g++ $(python-config --include) -Iinclude/ test.cpp 如果我们注释掉cpu.h include,就没有错误. 文件cpu.h取自pyfftw代码:https://github.com/pyFFTW/pyFFTW/blob/master/include/cpu.h 解决方法
发生这种情况是因为包flowfft的Cython源文件依赖于
a C++ header file
cpu.h ,其中以下预处理器行导致了问题:
#if __STDC_VERSION__ >= 199901L /* "inline" is a keyword */ #else # define inline #endif 我的猜测是新编译器严格重新定义保留关键字.根据essay on inline functions的提示,这段代码被替换为: #if __STDC_VERSION__ >= 199901L /* "inline" is a keyword */ #else # define INLINE #endif #ifndef INLINE # if __GNUC__ && !__GNUC_STDC_INLINE__ # define INLINE static inline # else # define INLINE inline # endif #endif (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |