Add --enable-libxml by default if we found libxml
Add --enable-libxml by default if we found libxml

konomae/phpbrew,svetlyak40wt/phpbrew,davidfuhr/phpbrew,wellic/phpbrew,pierredup/phpbrew,wellic/phpbrew,phpbrew/phpbrew,phpbrew/phpbrew,svetlyak40wt/phpbrew,kayyyy/phpbrew,zonuexe/phpbrew,davidfuhr/phpbrew,svetlyak40wt/phpbrew,viniciusferreira/phpbrew,zonuexe/phpbrew,konomae/phpbrew,svetlyak40wt/phpbrew,viniciusferreira/phpbrew,davidfuhr/phpbrew,pierredup/phpbrew,hechunwen/phpbrew,dduca-sugarcrm/phpbrew,viniciusferreira/phpbrew,mengzyou/phpbrew,pinkbigmacmedia/phpbrew,konomae/phpbrew,pinkbigmacmedia/phpbrew,mengzyou/phpbrew,pinkbigmacmedia/phpbrew,hechunwen/phpbrew,williamn/phpbrew,viniciusferreira/phpbrew,konomae/phpbrew,mengzyou/phpbrew,pierredup/phpbrew,wellic/phpbrew,dduca-sugarcrm/phpbrew,kayyyy/phpbrew,kayyyy/phpbrew,morozov/phpbrew,davidfuhr/phpbrew,williamn/phpbrew,phpbrew/phpbrew,hechunwen/phpbrew,morozov/phpbrew,williamn/phpbrew,williamn/phpbrew,dduca-sugarcrm/phpbrew,mengzyou/phpbrew,kayyyy/phpbrew,dduca-sugarcrm/phpbrew,hechunwen/phpbrew,pierredup/phpbrew,wellic/phpbrew,zonuexe/phpbrew,pinkbigmacmedia/phpbrew,zonuexe/phpbrew,davidfuhr/phpbrew