fix thread safety

diff --git a/Zend/zend_strtod.c b/Zend/zend_strtod.c
index 4fa9ee311d1a8b8378f8a8b6521915357e5925b6..0bdb8c08b56ddabc5ce9d0d7caf3067747d9b7f3 100644 (file)
--- a/Zend/zend_strtod.c
+++ b/Zend/zend_strtod.c
@@ -3601,7 +3601,7 @@ zend_strtod
        }
 
 #ifndef MULTIPLE_THREADS
- static char *dtoa_result;
+ ZEND_TLS char *dtoa_result;
 #endif
 
  static char *