A shell script to build openssl for iOS and Mac. >>>>> It currently builds: Mac (i386, x86_64) >>>>> iOS (armv7, arm64) >>>>> iOS Simulator (i386, x86_64) >>>>> Updated to work with Xcode 7 and produce bitcode enabled binaries >>>>> Minimum deployment target can be easily configured

openssl-build.sh

#!/bin/bash

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

# Credits:
# https://github.com/st3fan/ios-openssl
# https://github.com/x2on/OpenSSL-for-iPhone/blob/master/build-libssl.sh
# Peter Steinberger, PSPDFKit GmbH, @steipete.
# Doron Adler, GlideTalk, @Norod78

# Updated to work with Xcode 7 and iOS 9

set -e

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

###################################
# 		 SDK Version
###################################
IOS_SDK_VERSION=$(xcodebuild -version -sdk iphoneos | grep SDKVersion | cut -f2 -d ':' | tr -d '[[:space:]]')
###################################

################################################
# 		 Minimum iOS deployment target version
################################################
MIN_IOS_VERSION="7.0"

################################################
# 		 Minimum OS X deployment target version
################################################
MIN_OSX_VERSION="10.7"

echo "----------------------------------------"
echo "OpenSSL version: ${OPENSSL_VERSION}"
echo "iOS SDK version: ${IOS_SDK_VERSION}"
echo "iOS deployment target: ${MIN_IOS_VERSION}"
echo "OS X deployment target: ${MIN_OSX_VERSION}"
echo "----------------------------------------"
echo " "

DEVELOPER=`xcode-select -print-path`
buildMac()
{
	ARCH=$1
	echo "Start Building ${OPENSSL_VERSION} for ${ARCH}"
	TARGET="darwin-i386-cc"
	if [[ $ARCH == "x86_64" ]]; then
		TARGET="darwin64-x86_64-cc"
	fi
	
	export CC="${BUILD_TOOLS}/usr/bin/clang -mmacosx-version-min=${MIN_OSX_VERSION}"
	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}"
}
buildIOS()
{
	ARCH=$1
	echo "Start Building ${OPENSSL_VERSION} for ${PLATFORM} ${IOS_SDK_VERSION} ${ARCH}"
	
	pushd . > /dev/null
	cd "${OPENSSL_VERSION}"
  
	if [[ "${ARCH}" == "i386" || "${ARCH}" == "x86_64" ]]; then
		PLATFORM="iPhoneSimulator"
	else
		PLATFORM="iPhoneOS"
		sed -ie "s!static volatile sig_atomic_t intr_signal;!static volatile intr_signal;!" "crypto/ui/ui_openssl.c"
	fi
  
	export $PLATFORM
	export CROSS_TOP="${DEVELOPER}/Platforms/${PLATFORM}.platform/Developer"
	export CROSS_SDK="${PLATFORM}${IOS_SDK_VERSION}.sdk"
	export BUILD_TOOLS="${DEVELOPER}"
	export CC="${BUILD_TOOLS}/usr/bin/gcc -fembed-bitcode -mios-version-min=${MIN_IOS_VERSION} -arch ${ARCH}"
	
	echo "Configure"
	if [[ "${ARCH}" == "x86_64" ]]; then
		./Configure darwin64-x86_64-cc --openssldir="/tmp/${OPENSSL_VERSION}-iOS-${ARCH}" &> "/tmp/${OPENSSL_VERSION}-iOS-${ARCH}.log"
	else
		./Configure iphoneos-cross --openssldir="/tmp/${OPENSSL_VERSION}-iOS-${ARCH}" &> "/tmp/${OPENSSL_VERSION}-iOS-${ARCH}.log"
	fi
	# add -isysroot to CC=
	sed -ie "s!^CFLAG=!CFLAG=-isysroot ${CROSS_TOP}/SDKs/${CROSS_SDK} -mios-version-min=${MIN_IOS_VERSION} !" "Makefile"
	echo "make"
	make >> "/tmp/${OPENSSL_VERSION}-iOS-${ARCH}.log" 2>&1
	echo "make install"
	make install >> "/tmp/${OPENSSL_VERSION}-iOS-${ARCH}.log" 2>&1
	echo "make clean"
	make clean  >> "/tmp/${OPENSSL_VERSION}-iOS-${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 ${OPENSSL_VERSION}
mkdir -p lib/iOS
mkdir -p lib/Mac
mkdir -p include/openssl/
rm -rf "/tmp/${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 "i386"
buildMac "x86_64"
echo "Copying headers"
cp /tmp/${OPENSSL_VERSION}-i386/include/openssl/* include/openssl/
echo "Building Mac libraries"
lipo \
	"/tmp/${OPENSSL_VERSION}-i386/lib/libcrypto.a" \
	"/tmp/${OPENSSL_VERSION}-x86_64/lib/libcrypto.a" \
	-create -output lib/Mac/libcrypto.a
lipo \
	"/tmp/${OPENSSL_VERSION}-i386/lib/libssl.a" \
	"/tmp/${OPENSSL_VERSION}-x86_64/lib/libssl.a" \
	-create -output lib/Mac/libssl.a
buildIOS "armv7"
buildIOS "arm64"
buildIOS "x86_64"
buildIOS "i386"
echo "Building iOS libraries"
lipo \
	"/tmp/${OPENSSL_VERSION}-iOS-armv7/lib/libcrypto.a" \
	"/tmp/${OPENSSL_VERSION}-iOS-arm64/lib/libcrypto.a" \
	"/tmp/${OPENSSL_VERSION}-iOS-i386/lib/libcrypto.a" \
	"/tmp/${OPENSSL_VERSION}-iOS-x86_64/lib/libcrypto.a" \
	-create -output lib/iOS/libcrypto.a
lipo \
	"/tmp/${OPENSSL_VERSION}-iOS-armv7/lib/libssl.a" \
	"/tmp/${OPENSSL_VERSION}-iOS-arm64/lib/libssl.a" \
	"/tmp/${OPENSSL_VERSION}-iOS-i386/lib/libssl.a" \
	"/tmp/${OPENSSL_VERSION}-iOS-x86_64/lib/libssl.a" \
	-create -output lib/iOS/libssl.a
echo "Cleaning up"
rm -rf /tmp/${OPENSSL_VERSION}-*
rm -rf ${OPENSSL_VERSION}
echo "Done"

Works great! Thanks. Finally got rid of all those "not compiled for" warnings :-)

Error with openssl-1.1.0g

Copying headers
cp: /tmp/openssl-1.1.0g-i386/include/openssl/*: No such file or directory

@tudemon Highly likely its related to this https://wiki.openssl.org/index.php/Compilation_and_Installation#PREFIX_and_OPENSSLDIR

Script need to be updated to specify both --openssldir and --prefix to point to the same location

Trying to build
openssl-1.1.1b

but does not make x86_64 following are last lines of log

clang: warning: using sysroot for 'MacOSX' but targeting 'iPhone' [-Wincompatible-sysroot]
ar r test/libtestutil.a test/testutil/basic_output.o test/testutil/cb.o test/testutil/driver.o test/testutil/format_output.o test/testutil/init.o test/testutil/main.o test/testutil/output_helpers.o test/testutil/stanza.o test/testutil/tap_bio.o test/testutil/test_cleanup.o test/testutil/tests.o
ar: creating archive test/libtestutil.a
ranlib -c test/libtestutil.a || echo Never mind.
/Applications/Xcode.app/Contents/Developer/usr/bin/gcc -fembed-bitcode -mios-version-min=7.0 -arch x86_64 -fPIC -arch x86_64 -O3 -Wall -L. -dynamiclib -current_version 1.1 -compatibility_version 1.1 -Wl,-search_paths_first -install_name /tmp/openssl-1.1.1b-iOS-x86_64/lib/libcrypto.1.1.dylib
-o libcrypto.1.1.dylib crypto/aes/aes-x86_64.o crypto/aes/aes_cfb.o crypto/aes/aes_ecb.o crypto/aes/aes_ige.o crypto/aes/aes_misc.o crypto/aes/aes_ofb.o crypto/aes/aes_wrap.o crypto/aes/aesni-mb-x86_64.o crypto/aes/aesni-sha1-x86_64.o crypto/aes/aesni-sha256-x86_64.o crypto/aes/aesni-x86_64.o crypto/aes/bsaes-x86_64.o crypto/aes/vpaes-x86_64.o crypto/aria/aria.o crypto/asn1/a_bitstr.o crypto/asn1/a_d2i_fp.o crypto/asn1/a_digest.o crypto/asn1/a_dup.o crypto/asn1/a_gentm.o crypto/asn1/a_i2d_fp.o crypto/asn1/a_int.o crypto/asn1/a_mbstr.o crypto/asn1/a_object.o crypto/asn1/a_octet.o crypto/asn1/a_print.o crypto/asn1/a_sign.o crypto/asn1/a_strex.o crypto/asn1/a_strnid.o crypto/asn1/a_time.o crypto/asn1/a_type.o crypto/asn1/a_utctm.o crypto/asn1/a_utf8.o crypto/asn1/a_verify.o crypto/asn1/ameth_lib.o crypto/asn1/asn1_err.o crypto/asn1/asn1_gen.o crypto/asn1/asn1_item_list.o crypto/asn1/asn1_lib.o crypto/asn1/asn1_par.o crypto/asn1/asn_mime.o crypto/asn1/asn_moid.o crypto/asn1/asn_mstbl.o 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crypto/bn/bn_mont.o crypto/bn/bn_mpi.o crypto/bn/bn_mul.o crypto/bn/bn_nist.o crypto/bn/bn_prime.o crypto/bn/bn_print.o crypto/bn/bn_rand.o crypto/bn/bn_recp.o crypto/bn/bn_shift.o crypto/bn/bn_sqr.o crypto/bn/bn_sqrt.o crypto/bn/bn_srp.o crypto/bn/bn_word.o crypto/bn/bn_x931p.o crypto/bn/rsaz-avx2.o crypto/bn/rsaz-x86_64.o crypto/bn/rsaz_exp.o crypto/bn/x86_64-gf2m.o crypto/bn/x86_64-mont.o crypto/bn/x86_64-mont5.o crypto/buffer/buf_err.o crypto/buffer/buffer.o crypto/camellia/cmll-x86_64.o crypto/camellia/cmll_cfb.o crypto/camellia/cmll_ctr.o crypto/camellia/cmll_ecb.o crypto/camellia/cmll_misc.o crypto/camellia/cmll_ofb.o crypto/cast/c_cfb64.o crypto/cast/c_ecb.o crypto/cast/c_enc.o crypto/cast/c_ofb64.o crypto/cast/c_skey.o crypto/chacha/chacha-x86_64.o crypto/cmac/cm_ameth.o crypto/cmac/cm_pmeth.o crypto/cmac/cmac.o crypto/cms/cms_asn1.o crypto/cms/cms_att.o crypto/cms/cms_cd.o crypto/cms/cms_dd.o crypto/cms/cms_enc.o crypto/cms/cms_env.o crypto/cms/cms_err.o crypto/cms/cms_ess.o crypto/cms/cms_io.o crypto/cms/cms_kari.o crypto/cms/cms_lib.o crypto/cms/cms_pwri.o crypto/cms/cms_sd.o crypto/cms/cms_smime.o crypto/comp/c_zlib.o crypto/comp/comp_err.o crypto/comp/comp_lib.o crypto/conf/conf_api.o crypto/conf/conf_def.o crypto/conf/conf_err.o crypto/conf/conf_lib.o crypto/conf/conf_mall.o crypto/conf/conf_mod.o crypto/conf/conf_sap.o crypto/conf/conf_ssl.o crypto/cpt_err.o crypto/cryptlib.o crypto/ct/ct_b64.o crypto/ct/ct_err.o crypto/ct/ct_log.o crypto/ct/ct_oct.o crypto/ct/ct_policy.o crypto/ct/ct_prn.o crypto/ct/ct_sct.o crypto/ct/ct_sct_ctx.o crypto/ct/ct_vfy.o crypto/ct/ct_x509v3.o crypto/ctype.o crypto/cversion.o crypto/des/cbc_cksm.o crypto/des/cbc_enc.o crypto/des/cfb64ede.o crypto/des/cfb64enc.o crypto/des/cfb_enc.o crypto/des/des_enc.o crypto/des/ecb3_enc.o crypto/des/ecb_enc.o crypto/des/fcrypt.o crypto/des/fcrypt_b.o crypto/des/ofb64ede.o crypto/des/ofb64enc.o crypto/des/ofb_enc.o crypto/des/pcbc_enc.o crypto/des/qud_cksm.o crypto/des/rand_key.o crypto/des/set_key.o crypto/des/str2key.o crypto/des/xcbc_enc.o crypto/dh/dh_ameth.o crypto/dh/dh_asn1.o crypto/dh/dh_check.o crypto/dh/dh_depr.o crypto/dh/dh_err.o crypto/dh/dh_gen.o crypto/dh/dh_kdf.o crypto/dh/dh_key.o crypto/dh/dh_lib.o crypto/dh/dh_meth.o crypto/dh/dh_pmeth.o crypto/dh/dh_prn.o crypto/dh/dh_rfc5114.o crypto/dh/dh_rfc7919.o crypto/dsa/dsa_ameth.o crypto/dsa/dsa_asn1.o crypto/dsa/dsa_depr.o crypto/dsa/dsa_err.o crypto/dsa/dsa_gen.o crypto/dsa/dsa_key.o crypto/dsa/dsa_lib.o crypto/dsa/dsa_meth.o crypto/dsa/dsa_ossl.o crypto/dsa/dsa_pmeth.o crypto/dsa/dsa_prn.o crypto/dsa/dsa_sign.o crypto/dsa/dsa_vrf.o crypto/dso/dso_dl.o crypto/dso/dso_dlfcn.o crypto/dso/dso_err.o crypto/dso/dso_lib.o crypto/dso/dso_openssl.o crypto/dso/dso_vms.o crypto/dso/dso_win32.o crypto/ebcdic.o crypto/ec/curve25519.o crypto/ec/curve448/arch_32/f_impl.o crypto/ec/curve448/curve448.o crypto/ec/curve448/curve448_tables.o crypto/ec/curve448/eddsa.o crypto/ec/curve448/f_generic.o crypto/ec/curve448/scalar.o crypto/ec/ec2_oct.o crypto/ec/ec2_smpl.o crypto/ec/ec_ameth.o crypto/ec/ec_asn1.o crypto/ec/ec_check.o crypto/ec/ec_curve.o crypto/ec/ec_cvt.o crypto/ec/ec_err.o crypto/ec/ec_key.o crypto/ec/ec_kmeth.o crypto/ec/ec_lib.o crypto/ec/ec_mult.o crypto/ec/ec_oct.o crypto/ec/ec_pmeth.o crypto/ec/ec_print.o crypto/ec/ecdh_kdf.o crypto/ec/ecdh_ossl.o crypto/ec/ecdsa_ossl.o crypto/ec/ecdsa_sign.o crypto/ec/ecdsa_vrf.o crypto/ec/eck_prn.o crypto/ec/ecp_mont.o crypto/ec/ecp_nist.o crypto/ec/ecp_nistp224.o crypto/ec/ecp_nistp256.o crypto/ec/ecp_nistp521.o crypto/ec/ecp_nistputil.o crypto/ec/ecp_nistz256-x86_64.o crypto/ec/ecp_nistz256.o crypto/ec/ecp_oct.o crypto/ec/ecp_smpl.o crypto/ec/ecx_meth.o crypto/ec/x25519-x86_64.o crypto/engine/eng_all.o crypto/engine/eng_cnf.o crypto/engine/eng_ctrl.o crypto/engine/eng_dyn.o crypto/engine/eng_err.o crypto/engine/eng_fat.o crypto/engine/eng_init.o crypto/engine/eng_lib.o crypto/engine/eng_list.o crypto/engine/eng_openssl.o crypto/engine/eng_pkey.o crypto/engine/eng_rdrand.o crypto/engine/eng_table.o crypto/engine/tb_asnmth.o crypto/engine/tb_cipher.o crypto/engine/tb_dh.o crypto/engine/tb_digest.o crypto/engine/tb_dsa.o crypto/engine/tb_eckey.o crypto/engine/tb_pkmeth.o crypto/engine/tb_rand.o crypto/engine/tb_rsa.o crypto/err/err.o crypto/err/err_all.o crypto/err/err_prn.o crypto/evp/bio_b64.o crypto/evp/bio_enc.o crypto/evp/bio_md.o crypto/evp/bio_ok.o crypto/evp/c_allc.o crypto/evp/c_alld.o crypto/evp/cmeth_lib.o crypto/evp/digest.o crypto/evp/e_aes.o crypto/evp/e_aes_cbc_hmac_sha1.o crypto/evp/e_aes_cbc_hmac_sha256.o crypto/evp/e_aria.o crypto/evp/e_bf.o crypto/evp/e_camellia.o crypto/evp/e_cast.o crypto/evp/e_chacha20_poly1305.o crypto/evp/e_des.o crypto/evp/e_des3.o crypto/evp/e_idea.o crypto/evp/e_null.o crypto/evp/e_old.o crypto/evp/e_rc2.o crypto/evp/e_rc4.o crypto/evp/e_rc4_hmac_md5.o crypto/evp/e_rc5.o crypto/evp/e_seed.o crypto/evp/e_sm4.o crypto/evp/e_xcbc_d.o crypto/evp/encode.o crypto/evp/evp_cnf.o crypto/evp/evp_enc.o crypto/evp/evp_err.o crypto/evp/evp_key.o crypto/evp/evp_lib.o crypto/evp/evp_pbe.o crypto/evp/evp_pkey.o crypto/evp/m_md2.o crypto/evp/m_md4.o crypto/evp/m_md5.o crypto/evp/m_md5_sha1.o crypto/evp/m_mdc2.o crypto/evp/m_null.o crypto/evp/m_ripemd.o crypto/evp/m_sha1.o crypto/evp/m_sha3.o crypto/evp/m_sigver.o crypto/evp/m_wp.o crypto/evp/names.o crypto/evp/p5_crpt.o crypto/evp/p5_crpt2.o crypto/evp/p_dec.o crypto/evp/p_enc.o crypto/evp/p_lib.o crypto/evp/p_open.o crypto/evp/p_seal.o crypto/evp/p_sign.o crypto/evp/p_verify.o crypto/evp/pbe_scrypt.o crypto/evp/pmeth_fn.o crypto/evp/pmeth_gn.o crypto/evp/pmeth_lib.o crypto/ex_data.o crypto/getenv.o crypto/hmac/hm_ameth.o crypto/hmac/hm_pmeth.o crypto/hmac/hmac.o crypto/idea/i_cbc.o crypto/idea/i_cfb64.o crypto/idea/i_ecb.o crypto/idea/i_ofb64.o crypto/idea/i_skey.o crypto/init.o crypto/kdf/hkdf.o crypto/kdf/kdf_err.o crypto/kdf/scrypt.o crypto/kdf/tls1_prf.o crypto/lhash/lh_stats.o 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clang: warning: using sysroot for 'MacOSX' but targeting 'iPhone' [-Wincompatible-sysroot]
ld: building for iOS Simulator simulator, but linking against dylib built for macOS/iOSMac, file '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/lib/libSystem.tbd' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[1]: *** [libcrypto.dylib] Error 1
make: *** [all] Error 2

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one million likes!

@issaharnoam: Glad to hear it!