ChemPy：clang：错误：不支持的选项“-fopenmp”

Question

我正在尝试解决以下问题。当我尝试在此 ntb中运行以下行时，我得到：native = get_native(rsys, odesys, 'cvode')INFO:pyodesys.native._base:Cythonizing /Users/user/Library/Caches/python3.8-pyodesys-0.13.1/_cvode_wrapper.pyx to ./_cvode_wrapper.cppINFO:pyodesys.native._base:In "/var/folders/bx/tb4883l53hdd3zp2y0nyy_4m0000gp/T/tmpt2vuw8pg", executing:"/usr/bin/g++ -fwrapv -pthread -c -std=c++11 -Wall -Wextra -fPIC -O2 -ffast-math -funroll-loops -fopenmp -fno-strict-aliasing -o ./_cvode_wrapper.o -DPYCVODES_NO_KLU=0 -DPYCVODES_NO_LAPACK=0 -DANYODE_NO_LAPACK=0 -I/Users/user/anaconda3/lib/python3.8/site-packages/numpy/core/include -I/Users/jan/anaconda3/lib/python3.8/site-packages/pyodesys/native/sources -I/Users/jan/anaconda3/lib/python3.8/site-packages/pycvodes/include -I/Users/jan/anaconda3/include/python3.8 ./_cvode_wrapper.cpp"fopenmp我认为这可能是和 的问题gcc，如这些地方所述（How to deal with "clang: error: unsupported option '-fopenmp'" on travis?，https://github.com/microsoft/LightGBM/issues/ 3、 https: //github.com/velocyto-team/velocyto.R/issues/2）但提出的解决方案（https://github.com/velocyto-team/velocyto.R/issues/2#issuecomment-341165967，https://github.com/microsoft/LightGBM/issues/3#issuecomment-254149689，https : //github.com/kharchenkolab/conos/wiki/Installing-Conos-for-Mac-OS）只是不适用于我。我也尝试使用 conda 安装 GCC 但我得到：conda install gccPackagesNotFoundError: The following packages are not available from current channels:   - gcc Current channels:   - https://repo.anaconda.com/pkgs/main/osx-64   - https://repo.anaconda.com/pkgs/main/noarch   - https://repo.anaconda.com/pkgs/r/osx-64   - https://repo.anaconda.com/pkgs/r/noarch使用homebrew我已经gcc安装...知道发生了什么以及如何修复它吗？我运行的是 MacOS 10.15.7。谢谢

Answer 1

自制程序将安装类似的东西：

/usr/local/bin/g++-10

您可以通过以下方式准确检查它安装的内容和位置：

brew ls gcc

样本输出

/usr/local/Cellar/gcc/10.2.0/bin/c++-10

/usr/local/Cellar/gcc/10.2.0/bin/cpp-10

/usr/local/Cellar/gcc/10.2.0/bin/g++-10

/usr/local/Cellar/gcc/10.2.0/bin/gcc-10

/usr/local/Cellar/gcc/10.2.0/bin/gcc-ar-10

/usr/local/Cellar/gcc/10.2.0/bin/gcc-nm-10

/usr/local/Cellar/gcc/10.2.0/bin/gcc-ranlib-10

/usr/local/Cellar/gcc/10.2.0/bin/gcov-10

/usr/local/Cellar/gcc/10.2.0/bin/gcov-dump-10

/usr/local/Cellar/gcc/10.2.0/bin/gcov-tool-10

/usr/local/Cellar/gcc/10.2.0/bin/gfortran

/usr/local/Cellar/gcc/10.2.0/bin/gfortran-10

/usr/local/Cellar/gcc/10.2.0/bin/lto-dump-10

/usr/local/Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-c++-10

/usr/local/Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-g++-10

/usr/local/Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gcc-10

/usr/local/Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gcc-10.2.0

/usr/local/Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gcc-ar-10

/usr/local/Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gcc-nm-10

/usr/local/Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gcc-ranlib-10

/usr/local/Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gfortran-10

/usr/local/Cellar/gcc/10.2.0/include/c++/ (770 files)

/usr/local/Cellar/gcc/10.2.0/lib/gcc/ (638 files)

/usr/local/Cellar/gcc/10.2.0/libexec/gcc/ (13 files)

/usr/local/Cellar/gcc/10.2.0/share/gcc-10.2.0/ (4 files)

/usr/local/Cellar/gcc/10.2.0/share/man/ (11 files)

然后你可以找到你应该实际使用的符号链接二进制文件，如下所示：

cd /usr/local/bin

ls -l | grep gcc

样本输出

lrwxr-xr-x   1 mark  admin        31 21 Aug 16:41 c++-10 -> ../Cellar/gcc/10.2.0/bin/c++-10

lrwxr-xr-x   1 mark  admin        31 21 Aug 16:41 cpp-10 -> ../Cellar/gcc/10.2.0/bin/cpp-10

lrwxr-xr-x   1 mark  admin        31 21 Aug 16:41 g++-10 -> ../Cellar/gcc/10.2.0/bin/g++-10

lrwxr-xr-x   1 mark  admin        31 21 Aug 16:41 gcc-10 -> ../Cellar/gcc/10.2.0/bin/gcc-10

lrwxr-xr-x   1 mark  admin        34 21 Aug 16:41 gcc-ar-10 -> ../Cellar/gcc/10.2.0/bin/gcc-ar-10

lrwxr-xr-x   1 mark  admin        34 21 Aug 16:41 gcc-nm-10 -> ../Cellar/gcc/10.2.0/bin/gcc-nm-10

lrwxr-xr-x   1 mark  admin        38 21 Aug 16:41 gcc-ranlib-10 -> ../Cellar/gcc/10.2.0/bin/gcc-ranlib-10

lrwxr-xr-x   1 mark  admin        32 21 Aug 16:41 gcov-10 -> ../Cellar/gcc/10.2.0/bin/gcov-10

lrwxr-xr-x   1 mark  admin        37 21 Aug 16:41 gcov-dump-10 -> ../Cellar/gcc/10.2.0/bin/gcov-dump-10

lrwxr-xr-x   1 mark  admin        37 21 Aug 16:41 gcov-tool-10 -> ../Cellar/gcc/10.2.0/bin/gcov-tool-10

lrwxr-xr-x   1 mark  admin        33 21 Aug 16:41 gfortran -> ../Cellar/gcc/10.2.0/bin/gfortran

lrwxr-xr-x   1 mark  admin        36 21 Aug 16:41 gfortran-10 -> ../Cellar/gcc/10.2.0/bin/gfortran-10

lrwxr-xr-x   1 mark  admin        36 21 Aug 16:41 lto-dump-10 -> ../Cellar/gcc/10.2.0/bin/lto-dump-10

lrwxr-xr-x   1 mark  admin        53 21 Aug 16:41 x86_64-apple-darwin19-c++-10 -> ../Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-c++-10

lrwxr-xr-x   1 mark  admin        53 21 Aug 16:41 x86_64-apple-darwin19-g++-10 -> ../Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-g++-10

lrwxr-xr-x   1 mark  admin        53 21 Aug 16:41 x86_64-apple-darwin19-gcc-10 -> ../Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gcc-10

lrwxr-xr-x   1 mark  admin        57 21 Aug 16:41 x86_64-apple-darwin19-gcc-10.2.0 -> ../Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gcc-10.2.0

lrwxr-xr-x   1 mark  admin        56 21 Aug 16:41 x86_64-apple-darwin19-gcc-ar-10 -> ../Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gcc-ar-10

lrwxr-xr-x   1 mark  admin        56 21 Aug 16:41 x86_64-apple-darwin19-gcc-nm-10 -> ../Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gcc-nm-10

lrwxr-xr-x   1 mark  admin        60 21 Aug 16:41 x86_64-apple-darwin19-gcc-ranlib-10 -> ../Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gcc-ranlib-10

lrwxr-xr-x   1 mark  admin        58 21 Aug 16:41 x86_64-apple-darwin19-gfortran-10 -> ../Cellar/gcc/10.2.0/bin/x86_64-apple-darwin19-gfortran-10

因此，一旦确定要使用哪个编译器，您需要告诉构建工具如何使用它。我不熟悉您提到的软件包，但您帖子的第四行暗示它正在使用，/usr/bin/g++如果您想使用 homebrew ，这是不正确的 /usr/local/bin/g++-10。

指定不同编译器的常见方法是：

• 对于CMake：CXX=/usr/local/bin/g++-10 cmake ..

• 对于品牌：make CXX=/usr/local/bin/g++-10

• 对于自动配置：./configure CXX=/usr/local/bin/g++-10

Answer 2

我花了很长时间，最终出现了两个我认为对其他人可能有用的主要问题。

1. ChemPy 仅在 Linux 上受支持，因此即使我让编译器正常工作，我也没有使其在 Mac 或 Windows 上运行。

2. 编译器一团糟。最后有效的是使用 Anaconda 环境中的 clang v10 而不是 v12：

export CC=/usr/bin/clang
export CXX=/usr/bin/clang++

为了使它完整，这里是现有的和工作的：

(base) bash-3.2$ clang --version
clang version 10.0.0
Target: x86_64-apple-darwin19.6.0
Thread model: posix
InstalledDir: /Users/user/anaconda3/bin
(base) bash-3.2$ which clang
/Users/user/anaconda3/bin/clang