build openssl with statically linked libraries for old software rebuilds on macOS x86_64 / iOS emulator (x86_64) (fork of many other scripts)

openssl_build_so.sh

#!/bin/bash

# This script builds the Mac openSSL libraries with Bitcode enabled
# Download openssl http://www.openssl.org/source/ and place the tarball next to this script

# Modified and messed with by @sammcj

# Credits:
# Peter Steinberger, PSPDFKit GmbH, @steipete.
# Doron Adler, GlideTalk, @Norod78

# Updated to work with Xcode 9

set -e

###################################
# 		 OpenSSL Version
###################################
OPENSSL_VERSION="openssl-1.0.2o"
###################################

################################################
# 		 Minimum OS X deployment target version
################################################
MIN_OSX_VERSION="10.13"

echo "----------------------------------------"
echo "OpenSSL version: ${OPENSSL_VERSION}"
echo "OS X deployment target: ${MIN_OSX_VERSION}"
echo "----------------------------------------"
echo " "

DEVELOPER=`xcode-select -print-path`
buildMac()
{
	ARCH=x86_64
	echo "Start Building ${OPENSSL_VERSION} for ${ARCH}"
	TARGET="darwin64-x86_64-cc"
	
	export CC="${BUILD_TOOLS}/usr/bin/clang -mmacosx-version-min=${MIN_OSX_VERSION} -Wl,-undefined -Wl,dynamic_lookup"
	pushd . > /dev/null
	cd "${OPENSSL_VERSION}"
	echo "Configure"
	./Configure ${TARGET} --openssldir="/tmp/${OPENSSL_VERSION}-${ARCH}" &> "/tmp/${OPENSSL_VERSION}-${ARCH}.log"
	make >> "/tmp/${OPENSSL_VERSION}-${ARCH}.log" 2>&1
	echo "make install"
	make install >> "/tmp/${OPENSSL_VERSION}-${ARCH}.log" 2>&1
	echo "make clean"
	make clean >> "/tmp/${OPENSSL_VERSION}-${ARCH}.log" 2>&1
	popd > /dev/null
	
	echo "Done Building ${OPENSSL_VERSION} for ${ARCH}"
}

echo "Cleaning up"
rm -rf include/openssl/* lib/*
rm -rf /tmp/${OPENSSL_VERSION}-*
rm -rf ${OPENSSL_VERSION}
mkdir -p lib/Mac
mkdir -p include/openssl/
rm -rf "/tmp/${OPENSSL_VERSION}-*"
rm -rf "/tmp/${OPENSSL_VERSION}-*.log"
rm -rf "${OPENSSL_VERSION}"
if [ ! -e ${OPENSSL_VERSION}.tar.gz ]; then
	echo "Downloading ${OPENSSL_VERSION}.tar.gz"
	curl -O https://www.openssl.org/source/${OPENSSL_VERSION}.tar.gz
else
	echo "Using ${OPENSSL_VERSION}.tar.gz"
fi
echo "Unpacking openssl"
tar xfz "${OPENSSL_VERSION}.tar.gz"
buildMac "x86_64"
echo "Copying headers"
cp /tmp/${OPENSSL_VERSION}-x86_64/include/openssl/* include/openssl/
echo "Building Mac libraries"
lipo \
	"/tmp/${OPENSSL_VERSION}-x86_64/lib/libcrypto.a" \
	-create -output lib/Mac/libcrypto.a
lipo \
	"/tmp/${OPENSSL_VERSION}-x86_64/lib/libssl.a" \
	-create -output lib/Mac/libssl.a
echo "Cleaning up"
rm -rf /tmp/${OPENSSL_VERSION}-*
rm -rf ${OPENSSL_VERSION}
echo "Done"