From cc292afaedd01bc2641f515190917627b437bde7 Mon Sep 17 00:00:00 2001
From: Louis MARTIN <louisrtm@gmail.com>
Date: Sat, 6 Jul 2019 12:27:58 -0700
Subject: [PATCH] Add specific compile flags for macOS (#862)

Summary:
Fairseq wouldn't install on macOS.
A workaround was found here: https://github.com/pytorch/fairseq/issues/289
This is now automatic in setup.py, maybe be there's a cleaner way to do it.

I checked that it compiles fine on Linux and macOS.
Pull Request resolved: https://github.com/pytorch/fairseq/pull/862

Differential Revision: D16142105

Pulled By: myleott

fbshipit-source-id: 998ac7781d7a1ac047f4f9239c1fe16eab4be0dd
---
 setup.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/setup.py b/setup.py
index a15f3b3a9..19cea3898 100644
--- a/setup.py
+++ b/setup.py
@@ -16,14 +16,17 @@ if sys.version_info < (3,):
 with open('README.md') as f:
     readme = f.read()
 
-
+if sys.platform == 'darwin':
+    extra_compile_args = ['-stdlib=libc++']
+else:
+    extra_compile_args = ['-std=c++11']
 bleu = Extension(
     'fairseq.libbleu',
     sources=[
         'fairseq/clib/libbleu/libbleu.cpp',
         'fairseq/clib/libbleu/module.cpp',
     ],
-    extra_compile_args=['-std=c++11'],
+    extra_compile_args=extra_compile_args,
 )