Build latest OpenVPN CLI Binary on MacOS

build_openvpn_macos.sh

#!/bin/bash
set -e

# Script for building OpenVPN CLI (MacOS)
# This Script requires that the OpenSSL Library (1.0.x) and the LZO Library are installed under /usr/local/lib and the 
# headers under /usr/local/include
# For compiling the OpenSSL Library see: https://gist.github.com/Manromen/0cd572aa7694d6902260
# For compiling the LZO Library see: https://gist.github.com/Manromen/ac41c615aa4a95134eae6813402dd297
#
# OpenSSL Library: https://www.openssl.org
# LZO Library: https://www.oberhumer.com/opensource/lzo/


# set the version to build
OPENVPN_VERSION="2.4.0"

# download src if not already present
if [ ! -f openvpn-${OPENVPN_VERSION}.tar.gz ]; then
    curl -O https://swupdate.openvpn.org/community/releases/openvpn-${OPENVPN_VERSION}.tar.gz
fi

# untar source
tar -xvzf openvpn-${OPENVPN_VERSION}.tar.gz
mv openvpn-${OPENVPN_VERSION} openvpn
cd openvpn

# configure
CFLAGS="-I/usr/local/include -L/usr/local/lib" ./configure

# build
make
cd ..

# copy executable
mkdir ${OPENVPN_VERSION}
cp openvpn/src/openvpn/openvpn ${OPENVPN_VERSION}/

# cleanup temporary build folder
rm -rf openvpn