[doc] Improve installation instructions on OSX (#159)

facebookresearch · Dec 20, 2021 · 5148844 · 5148844
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commit 5148844
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diff --git a/README.md b/README.md
@@ -46,6 +46,8 @@ There are two ways you can install it:
   cd xformers
   pip install -r requirements.txt
   pip install -e .
+  # or, for OSX
+  MACOSX_DEPLOYMENT_TARGET=10.9 CC=clang CXX=clang++ pip install -e .
   ```
 
 #### Sparse attention kernels