mac os install and use problem.

[cm2316]

My pc environment:
MAC OS 10.13.5
xcode 8.2.1
cc -v
Apple LLVM version 8.0.0 (clang-800.0.42.1)
Target: x86_64-apple-darwin17.6.0

clang -v
Apple LLVM version 8.0.0 (clang-800.0.42.1)
Target: x86_64-apple-darwin17.6.0

gcc -v
Using built-in specs.
COLLECT_GCC=gcc-6

---

cuda "9.2" cudnn-9.2-osx-x64-v7.1

nvcc -V
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2018 NVIDIA Corporation
Built on Tue_Jun_12_23:08:12_CDT_2018
Cuda compilation tools, release 9.2, V9.2.148

---

python --version
Python 3.6.6
pytorch 0.4.1

---

run: make
clang: error: unsupported option '-fopenmp'

change: warp-ctc/build/CMakeCache.txt
WITH_OMP:BOOL=OFF

./test_gpu
Running GPU tests
Tests pass

run: python setup.py install
error: invalid argument '-std=c99' not allowed with 'C++/ObjC++'
error: command '/usr/bin/gcc' failed with exit status 1

change: pytorch_binding/setup.py
if platform.system() == 'Darwin':
extra_compile_args = ['-fPIC']
else:
extra_compile_args = ['-std=c++11', '-fPIC', '-std=c99']

run: CC=g++-6 python setup.py install

show info:
Installed /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/warpctc_pytorch-0.1-py3.6-macosx-10.9-x86_64.egg
Processing dependencies for warpctc-pytorch==0.1
Finished processing dependencies for warpctc-pytorch==0.1

but when I run the test, python tests/test_gpu.py, show the problem

Traceback (most recent call last):
File "tests/test_gpu.py", line 2, in
import warpctc_pytorch as warp_ctc
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/warpctc_pytorch-0.1-py3.6-macosx-10.9-x86_64.egg/warpctc_pytorch/init.py", line 6, in
from ._warp_ctc import *
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/warpctc_pytorch-0.1-py3.6-macosx-10.9-x86_64.egg/warpctc_pytorch/_warp_ctc/init.py", line 3, in
from .__warp_ctc import lib as _lib, ffi as _ffi
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/warpctc_pytorch-0.1-py3.6-macosx-10.9-x86_64.egg/warpctc_pytorch/_warp_ctc/__warp_ctc.cpython-36m-darwin.so, 2): Symbol not found: __ZNSt8ios_base4InitD1Ev
Referenced from: /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/warpctc_pytorch-0.1-py3.6-macosx-10.9-x86_64.egg/warpctc_pytorch/_warp_ctc/__warp_ctc.cpython-36m-darwin.so
Expected in: flat namespace
in /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/warpctc_pytorch-0.1-py3.6-macosx-10.9-x86_64.egg/warpctc_pytorch/_warp_ctc/__warp_ctc.cpython-36m-darwin.so

Can anybody help me slove the problem?

[jiangxiluning]

me too

[FrancoisPgm]

I had the same clang: error: unsupported option '-fopenmp' problem but found the solution there:
https://blog.csdn.net/xhzDeng/article/details/80511437
It consits in turning off the WITH_OMP option in the build/CMakeCache.txt file, simply replacing the lineWITH_OMP:BOOL=ON with WITH_OMP:BOOL=OFF

[BeHappyForMe]

me too,help