add missing include and fix warning

diff --git a/ext/standard/dir.c b/ext/standard/dir.c
index 6ae33093097a946704e954dd46732b29baaa3437..9606892ef3d87349a2efd88a84021fa2fd2050eb 100644 (file)
--- a/ext/standard/dir.c
+++ b/ext/standard/dir.c
@@ -24,6 +24,7 @@
 #include "fopen_wrappers.h"
 #include "file.h"
 #include "php_dir.h"
+#include "php_string.h"
 #include "php_scandir.h"
 
 #ifdef HAVE_DIRENT_H