update to 1:1 checked functions

1 files changed, 2 insertions, 1 deletions

diff --git a/src/string/strncat.c b/src/string/strncat.c
index 8a99f5b4..b455a36c 100644
--- a/src/string/strncat.c
+++ b/src/string/strncat.c
@@ -1,6 +1,5 @@
 #include <string.h>
 #include "_safety.h"
-#undef strncat
 
 /** concatenate bounded string **/
 
@@ -30,6 +29,8 @@ char * strncat(char * restrict s1, const char * restrict s2, size_t n)
 	return s1;
 }
 
+__check_3(char *, 0, strncat, char * restrict, const char * restrict, size_t)
+
 /***
 appends a copy of the frist ARGUMENT(n) bytes of the string
 at ARGUMENT(s2) to the end of the string at ARGUMENT(s1). The first byte of ARGUMENT(s2) will