From f2d88ea9201b96df6328c04ffe9ec66606375a38 Mon Sep 17 00:00:00 2001
From: Ivan Martinez <ivanthegreatdev@gmail.com>
Date: Sun, 19 Apr 2020 04:15:52 -0400
Subject: [PATCH] Fix prysm.sh for arm64 (#5507)

* Fix prysm script for arm
---
 prysm.sh | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/prysm.sh b/prysm.sh
index 053221bd9169..dac8d9e1f441 100755
--- a/prysm.sh
+++ b/prysm.sh
@@ -71,6 +71,7 @@ readonly wrapper_dir="$(dirname "$(get_realpath "${BASH_SOURCE[0]}")")/dist"
 arch=$(uname -m)
 arch=${arch/x86_64/amd64}
 arch=${arch/aarch64/arm64}
+readonly os_arch_suffix="$(uname -s | tr '[:upper:]' '[:lower:]')-$arch"
 
 system=""
 case "$OSTYPE" in
@@ -81,9 +82,11 @@ case "$OSTYPE" in
   *)        exit 1 ;;
 esac
 
-if [ "$system" == "windows" ]
-then 
+
+if [ "$system" == "windows" ]; then
 	arch="amd64.exe"
+elif [[ "$os_arch_suffix" == *"arm64"* ]]; then
+  arch=$os_arch_suffix
 fi
 
 mkdir -p $wrapper_dir