Merge pull request #2270 from rbenv/openssl-clean

build_package_openssl() {

  # Install to a subdirectory since we don't want shims for bin/openssl.

  OPENSSL_PREFIX_PATH="${PREFIX_PATH}/openssl"

  local OPENSSL_PREFIX_PATH="${PREFIX_PATH}/openssl"

  # Put openssl.conf, certs, etc in ~/.rbenv/versions/*/openssl/ssl

  OPENSSLDIR="${OPENSSLDIR:-$OPENSSL_PREFIX_PATH/ssl}"

  # Make sure pkg-config finds our build first.

  export PKG_CONFIG_PATH="${OPENSSL_PREFIX_PATH}/lib/pkgconfig${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}"

  # Hint OpenSSL that we prefer a 64-bit build.

  export KERNEL_BITS="64"

  OPENSSL_CONFIGURE="${OPENSSL_CONFIGURE:-./config}"

  local nokerberos

  [[ "$1" != openssl-1.0.* ]] || nokerberos=1

  # Compile a shared lib with zlib dynamically linked.

  package_option openssl configure --openssldir="$OPENSSLDIR" zlib-dynamic no-ssl3 shared ${nokerberos:+no-ssl2 no-krb5}

  # Default MAKE_OPTS are -j 2 which can confuse the build. Thankfully, make

  # gives precedence to the last -j option, so we can override that.

  package_option openssl make -j 1

  # Skip building OpenSSL docs, which is slow.

  local make_target="install_sw install_ssldirs"

  [[ "$1" != openssl-1.0.* ]] || make_target="install_sw" # OpenSSL 1.0 does not have `install_ssldirs`

  # Use install_sw install_ssldirs instead of install to skip building docs which is slow.

  # OpenSSL 1.1+ also needs install_ssldirs, 1.0 does not have that target.

  if [[ "$1" == openssl-1.0.* ]]; then

    MAKE_INSTALL_TARGET="install_sw" build_package_standard "$@"

  else

    MAKE_INSTALL_TARGET="install_sw install_ssldirs" build_package_standard "$@"

  fi

  OPENSSL_CONFIGURE="${OPENSSL_CONFIGURE:-./config}" MAKE_INSTALL_TARGET="$make_target" build_package_standard "$@"

  local pem_file="$OPENSSLDIR/cert.pem"

  if is_mac; then