Given that he did not:
Do you think that the Islamic population in Austria would poll significantly differently than the US?
http://www.centerforsecuritypolicy.org/2015/06/23/nationwide-poll-of-us-muslims-shows-thousands-support-shariah-jihad/
"...Nearly one-fifth of Muslim respondents said that the use of violence in the United States is justified in order to make shariah the law of the land in this country....."