fatal error: too many errors emitted, stopping now [-ferror-limit=] - pecl install Mosquitto-alpha on Mac

[NaveenYadavGithub]

In file included from /private/tmp/pear/temp/Mosquitto/mosquitto.c:12:
/private/tmp/pear/temp/Mosquitto/php_mosquitto.h:118:95: error: expected ')'
typedef int (*php_mosquitto_write_t)(mosquitto_message_object *mosquitto_object, zval *newval TSRMLS_DC)

/private/tmp/pear/temp/Mosquitto/php_mosquitto.h:118:37: note: to match this '('
typedef int (*php_mosquitto_write_t)(mosquitto_message_object *mosquitto_object, zval *newval TSRMLS_DC)

/private/tmp/pear/temp/Mosquitto/mosquitto.c:41:79: warning: format specifies type 'char *' but the argument has type 'zend_string *' (aka 'struct _zend_string *') [-Wformat]
"you must call parent::__construct in extended classes", Z_OBJCE_P(zobj)->name);