Use STRING_BYTES and SET_STRING_BYTES.

[bpt/emacs.git] / src / filelock.c

diff --git a/src/filelock.c b/src/filelock.c
index 116f96e..b17fab1 100644 (file)
--- a/src/filelock.c
+++ b/src/filelock.c
@@ -129,7 +129,7 @@ typedef struct
 /* Write the name of the lock file for FN into LFNAME.  Length will be
    that of FN plus two more for the leading `.#' plus one for the null.  */
 #define MAKE_LOCK_NAME(lock, file) \
-  (lock = (char *) alloca (XSTRING (file)->size_byte + 2 + 1), \
+  (lock = (char *) alloca (STRING_BYTES (XSTRING (file)) + 2 + 1), \
    fill_in_lock_file_name (lock, (file)))
 
 static void