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		${MAKE:-make} V=1 install || exit 1
	) || return 1

	# We always statically link
	KC_TLS_LINKSSLSTATIC='1'

	SSLDIR="$(pwd)/libressl-${version}/INST"
	SSLPKGCONFIGDIR="$(pwd)/libressl-${version}/INST/lib/pkgconfig"

	PKG_CONFIG_PATH="${SSLDIR}/lib/pkgconfig:${PKG_CONFIG_PATH}"
	export PKG_CONFIG_PATH

	return 0
}

function preconfigure() {
	# Determine SSL directory
	if [ -z "${CPP}" ]; then
		CPP="${CC:-cc} -E"
	fi

	SSLPKGCONFIGDIR=''
	SSLDIR=''

	if [ -n "${KC_TLS_SSLDIR}" ]; then
		case "${KC_TLS_SSLDIR}" in
			*/pkgconfig|*/pkgconfig/)
				SSLPKGCONFIGDIR="${KC_TLS_SSLDIR}"
				;;
			*)
		SSLDIR="${KC_TLS_SSLDIR}"
				SSLDIR="${KC_TLS_SSLDIR}"
				;;
		esac
	else
		SSLDIR=''

		SSLGUESS='0'
		if [ -z "${KC_TLS_BUILDSSL}" ]; then
			if ! "${PKG_CONFIG:-pkg-config}" --exists openssl >/dev/null 2>/dev/null; then
			SSLDIR="$(echo '#include <openssl/ssl.h>' 2>/dev/null | ${CPP} - 2> /dev/null | awk '/# 1 "\/.*\/ssl\.h/{ print $3; exit }' | sed 's@^"@@;s@"$@@;s@/include/openssl/ssl\.h$@@')"
		fi
				SSLDIR="$(echo '#include <openssl/ssl.h>' 2>/dev/null | ${CPP} - 2> /dev/null | awk '/# 1 "\/.*\/ssl\.h/{ print $3; exit }' | sed 's@^"@@;s@"$@@;s@/include/openssl/ssl\.h$@@')"
			else
				SSLGUESS='1'
			fi
		fi

		if [ -z "${SSLDIR}" ]; then
			buildSSLLibrary || SSLDIR=''
		if [ -z "${SSLDIR}" -a "${SSLGUESS}" = '0' ]; then
			buildSSLLibrary || SSLPKGCONFIGDIR=''
		fi

		if [ -z "${SSLDIR}" ]; then
		if [ -z "${SSLPKGCONFIGDIR}" -a -z "${SSLDIR}" -a "${SSLGUESS}" = '0' ]; then
			echo "Unable to find OpenSSL, aborting." >&2

			return 1
		fi
	fi

	# Add SSL library to configure options
	if [ -n "${SSLPKGCONFIGDIR}" ]; then
		configure_extra=("${configure_extra[@]}" --with-openssl-pkgconfig="${SSLPKGCONFIGDIR}")
	elif [ -n "${SSLDIR}" ]; then
	configure_extra=("${configure_extra[@]}" --with-openssl-dir="${SSLDIR}")
		configure_extra=("${configure_extra[@]}" --with-openssl-dir="${SSLDIR}")
	fi

	# If we are statically linking to libssl, let tcltls know so it asks for the right
	# packages
	if [ "${KC_TLS_LINKSSLSTATIC}" = '1' ]; then
		configure_extra=("${configure_extra[@]}" --enable-static-ssl)
	fi
}