From d35be148663bc5a6a1bad0033d6a4875018a3a5c Mon Sep 17 00:00:00 2001
From: zhao-baiyi <zhaobaiyi2@h-partners.com>
Date: Thu, 25 Jan 2024 01:20:29 +0000
Subject: [PATCH] Modify README.md

Signed-off-by: zhao-baiyi <zhaobaiyi2@h-partners.com>
---
 llvm-build/README.md | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/llvm-build/README.md b/llvm-build/README.md
index 1a256676fd34..bd90dd8017e2 100644
--- a/llvm-build/README.md
+++ b/llvm-build/README.md
@@ -16,6 +16,19 @@ MacOS X >= 10.15.4
 
 </br>
 
+### Environmental preparation 
+
+ubuntu 
+```
+sudo apt-get install build-essential swig python3-dev libedit-dev libncurses5-dev binutils-dev gcc-multilib  
+```
+mac 
+```
+brew install swig  git-lfs java coreutils wget 
+```
+
+</br>
+
 ### Get Code
 ```
 repo init -u https://gitee.com/OpenHarmony/manifest.git -b master -m llvm-toolchain.xml
-- 
Gitee