postGIS install on AWS linux AMI

install-postgis.sh

#!/bin/bash
#
# Script to setup a Elastic Beanstalk AMI with geospatial libraries and postGIS
#
# sh aws_ami_prep.sh > aws_ami_prep.log 2>&1 &

# Go to ec2-user home directory
cd /home/ec2-user

# yum libraries
sudo yum -y install gcc gcc-c++ make cmake libtool libcurl-devel libxml2-devel rubygems swig fcgi-devel\
                    libtiff-devel freetype-devel curl-devel libpng-devel giflib-devel libjpeg-devel\
                    cairo-devel freetype-devel readline-devel openssl-devel python27 python27-devel

# Postgres
wget  http://ftp.postgresql.org/pub/source/v9.3.3/postgresql-9.3.3.tar.gz
tar -zxvf postgresql-9.3.3.tar.gz
cd postgresql-9.3.3
./configure  --with-openssl --bindir=/usr/bin
make
sudo make install
cd ..

# PROJ
wget http://download.osgeo.org/proj/proj-4.8.0.tar.gz
tar -zxvf proj-4.8.0.tar.gz
cd proj-4.8.0
./configure
make
sudo make install
cd ..

# GEOS
wget http://download.osgeo.org/geos/geos-3.4.2.tar.bz2
tar -xvf geos-3.4.2.tar.bz2
cd geos-3.4.2
./configure
make
sudo make install
cd ..

# GDAL
wget http://download.osgeo.org/gdal/1.10.1/gdal-1.10.1.tar.gz
tar -zxvf gdal-1.10.1.tar.gz
cd gdal-1.10.1
./configure
make
sudo make install
cd ..

# PostGIS
export LD_LIBRARY_PATH=/usr/local/pgsql/lib/:LD_LIBRARY_PATH
wget http://download.osgeo.org/postgis/source/postgis-2.1.0.tar.gz
tar -xvf postgis-2.1.0.tar.gz
cd postgis-2.1.0
./configure
make
sudo make install
cd ..

What shall I do if I used PostgreSQL13