diff --git a/build/envsetup.sh b/build/envsetup.sh
index 36ef556b1d078b16b19115e4b424cd670d3801c6..190ebf5fa2050bacf06f556203a32979aaaa5038 100644
--- a/build/envsetup.sh
+++ b/build/envsetup.sh
@@ -22,7 +22,7 @@ function print_usage {
 
 if [ "$#" -lt 2 ]; then
   print_usage
-# return
+  # return
 fi
 
 curdir=$(pwd)
@@ -71,13 +71,13 @@ fi
 if [ $1 = "arm" ]; then
   PLATFORM=aarch64
   USEOJ=0
-elif [ $1 = "riscv" ]; then
+  elif [ $1 = "riscv" ]; then
   PLATFORM=riscv64
   USEOJ=0
-elif [ $1 = "engine" ]; then
+  elif [ $1 = "engine" ]; then
   PLATFORM=ark
   USEOJ=1
-elif [ $1 = "ark" ]; then
+  elif [ $1 = "ark" ]; then
   PLATFORM=ark
   USEOJ=1
 else
@@ -88,7 +88,7 @@ fi
 if [ "$2" = "release" ]; then
   TYPE=release
   DEBUG=0
-elif [ "$2" = "debug" ]; then
+  elif [ "$2" = "debug" ]; then
   TYPE=debug
   DEBUG=1
 else
@@ -114,5 +114,6 @@ if [ ! -f $MAPLE_ROOT/tools/qemu/usr/bin/qemu-aarch64 ] && [ "$OLD_OS" = "0" ];
   echo " "
 fi
 
-
-
+if [[ "$OLD_OS" = "0" ]]; then
+  export LD_LIBRARY_PATH=${MAPLE_ROOT}/tools/clang+llvm-12.0.0-x86_64-linux-gnu-ubuntu-18.04/lib/
+fi