main/php_globals.h: add missing include for PHPAPI

Author: MaxKellermann

main/php_globals.h

@@ -17,6 +17,7 @@
 #ifndef PHP_GLOBALS_H
 #define PHP_GLOBALS_H
 
+#include "php.h" // for PHPAPI
 #include "zend_globals.h"
 
 typedef struct _php_core_globals php_core_globals;