From b394487d4f45821a9cebe019c7bf71c48f690113 Mon Sep 17 00:00:00 2001
From: "chang.chen" <baibaichen@gmail.com>
Date: Sun, 13 Dec 2020 16:10:07 +0800
Subject: [PATCH] update Mac-OS build documentation

---
 docs/en/development/build-osx.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/docs/en/development/build-osx.md b/docs/en/development/build-osx.md
index 7a4387f073b..c3a0a540b6d 100644
--- a/docs/en/development/build-osx.md
+++ b/docs/en/development/build-osx.md
@@ -35,10 +35,12 @@ $ cd ClickHouse
 
 ## Build ClickHouse {#build-clickhouse}
 
+> Please note: ClickHouse doesn't support build with native Apple Clang compiler, we need use clang from LLVM.
+
 ``` bash
 $ mkdir build
 $ cd build
-$ cmake .. -DCMAKE_CXX_COMPILER=`which clang++` -DCMAKE_C_COMPILER=`which clang`
+$ cmake ..-DCMAKE_C_COMPILER=`brew --prefix llvm`/bin/clang -DCMAKE_CXX_COMPILER=`brew --prefix llvm`/bin/clang++ -DCMAKE_PREFIX_PATH=`brew --prefix llvm`
 $ ninja
 $ cd ..
 ```