php7 lnamp 安装phalcon 错误

In file included from /root/cphalcon/build/64bits/phalcon.zep.c:175:0:
/root/cphalcon/build/64bits/phalcon.zep.h:433:1: error: unknown type name 'zend_object_value'
static zend_object_value zephir_init_properties_Phalcon_Mvc_Model_Validator(zend_class_entry *class_type TSRMLS_DC);
^
/root/cphalcon/build/64bits/phalcon.zep.h:7103:1: error: unknown type name 'zend_object_value'
static zend_object_value zephir_init_properties_Phalcon_Assets_Collection(zend_class_entry *class_type TSRMLS_DC);
^
/root/cphalcon/build/64bits/phalcon.zep.h:11593:1: error: unknown type name 'zend_object_value'
static zend_object_value zephir_init_properties_Phalcon_Http_Response_Headers(zend_class_entry *class_type TSRMLS_DC);
^
/root/cphalcon/build/64bits/phalcon.zep.h:18066:1: error: unknown type name 'zend_object_value'
static zend_object_value zephir_init_properties_Phalcon_Translate_Adapter_Csv(zend_class_entry *class_type TSRMLS_DC);
^
/root/cphalcon/build/64bits/phalcon.zep.c:184:40: fatal error: ext/standard/php_smart_str.h: No such file or directory
#include <ext/standard/php_smart_str.h>
^
compilation terminated.
make: *** [phalcon.lo] Error 1