问题
I am new to OpenMP, and my professor gives us a project to do. There are only three files in the folder: a C++ source code a0.cpp, a header a0.h, and a Makefile. When I want to run the code in my terminal, it says:
clang: error: unsupported option '-fopenmp'
clang: error: unsupported option '-fopenmp'
make: *** [a0] Error 1
I am using a Macbook, and I do not know how to fix this. Can you help me? Thanks.
回答1:
After installing libomp with homebrew using:
brew install libomp
I was able to compile an OpenMP program with this:
clang -Xpreprocessor -fopenmp -I/usr/local/include -L/usr/local/lib -lomp main.c -o main
If you are using C++, you'd likely want:
clang++ -Xpreprocessor -fopenmp -I/usr/local/include -L/usr/local/lib -lomp main.cpp -o main
来源：https://stackoverflow.com/questions/58275167/mac-running-openmp-clang-error-unsupported-option-fopenmp