Fix missing-prototype errors in tests/suites
Signed-off-by: Michael Schuster <michael@schuster.ms>
diff --git a/tests/suites/test_suite_lmots.function b/tests/suites/test_suite_lmots.function
index 293287a..61f2e28 100644
--- a/tests/suites/test_suite_lmots.function
+++ b/tests/suites/test_suite_lmots.function
@@ -3,7 +3,7 @@
#include "mbedtls/lms.h"
#if defined(MBEDTLS_TEST_HOOKS)
-int check_lmots_private_key_for_leak(unsigned char *sig)
+static int check_lmots_private_key_for_leak(unsigned char *sig)
{
size_t idx;