Question

我已安装gcc和g++：

$ which gcc
/usr/bin/gcc

$ which g++
/usr/bin/g++

$ brew install gcc
Warning: gcc-6.2.0 already installed

我按照Compile OpenMP programs with gcc compiler on OS X Yosemite通过HomeBrew重新安装gcc：

$ brew reinstall gcc --without-multilib

然后

$ /usr/bin/g++ openmp.cpp
openmp.cpp:12:10: fatal error: 'omp.h' file not found
#include <omp.h>
         ^
1 error generated.

-fopenmp

$ /usr/bin/g++ openmp.cpp -fopenmp
clang: error: unsupported option '-fopenmp'
clang: error: unsupported option '-fopenmp'

此重定向发生了什么？我如何使用gcc / g++？

虽然涉及，但不是OpenMP。

Answer 1

brew在/usr/local/bin中安装工具。使用/usr/local/bin/g++6：

$ /usr/local/bin/g++-6 --version
g++-6 (Homebrew gcc 6.2.0) 6.2.0
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

OS X：安装了到clang的gcc链接

1 个答案: