tests: add signature checks

[gnulib.git] / tests / test-isblank.c

diff --git a/tests/test-isblank.c b/tests/test-isblank.c
index f25d26d..d29fc63 100644 (file)
--- a/tests/test-isblank.c
+++ b/tests/test-isblank.c
@@ -20,6 +20,9 @@
 
 #include <ctype.h>
 
+#include "signature.h"
+SIGNATURE_CHECK (isblank, int, (int));
+
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>