y. zend_constant
z. HAVE_ST_BLKSIZE and HAVE_ST_RDEV
aa. RETSIGTYPE
+ bb. php_setcookie
2. Build system changes
a. Unix build system changes
aa. RETSIGTYPE has been removed from the generated php_config.h and should be
replaced with void.
+ bb. php_setcookie() now expects an additional samesite argument, and the
+ url_encode parameter has been moved to the end. The signature is now:
+ int php_setcookie(zend_string *name, zend_string *value, time_t expires,
+ zend_string *path, zend_string *domain, int secure,
+ int httponly, zend_string *samesite, int url_encode);
+
========================
2. Build system changes
========================