From 833ee19ab76cc5c9cf463eaf3f40838716bbb28b Mon Sep 17 00:00:00 2001
From: Ehsan <1574406+ehsk@users.noreply.github.com>
Date: Thu, 18 Jan 2024 21:50:38 -0500
Subject: [PATCH] Update installation.md to fix nmslib on Apple M-series
 (#1774)

---
 docs/installation.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/docs/installation.md b/docs/installation.md
index bbe022b51..4c0465d94 100644
--- a/docs/installation.md
+++ b/docs/installation.md
@@ -54,7 +54,10 @@ If you're on a Mac with an M-series (i.e., ARM) processor, the following recipe
 ```bash
 conda install wget -y
 conda install -c conda-forge openjdk=11 maven -y
-conda install -c conda-forge lightgbm nmslib -y
+conda install -c conda-forge lightgbm -y
+
+# from https://github.com/nmslib/nmslib/issues/476#issuecomment-1594889437
+CFLAGS="-mavx -DWARN(a)=(a)" pip install --use-pep517 nmslib
 
 # from https://github.com/facebookresearch/faiss/blob/main/INSTALL.md
 conda install -c pytorch faiss-cpu=1.7.4 blas=1.0 -y