Only define test_hooks_xxx under MBEDTLS_TEST_HOOKS

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index ef804c9..d0758bc 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -734,7 +734,9 @@
     mbedtls_memory_buffer_alloc_init( alloc_buf, sizeof(alloc_buf) );
 #endif
 
+#if defined(MBEDTLS_TEST_HOOKS)
     test_hooks_init( );
+#endif /* MBEDTLS_TEST_HOOKS */
 
     /*
      * Make sure memory references are valid.
@@ -3042,6 +3044,7 @@
     mbedtls_psa_crypto_free( );
 #endif
 
+#if defined(MBEDTLS_TEST_HOOKS)
     if( test_hooks_failure_detected( ) )
     {
         if( ret == 0 )
@@ -3049,6 +3052,7 @@
         mbedtls_printf( "Test hooks detected errors.\n" );
     }
     test_hooks_free( );
+#endif /* MBEDTLS_TEST_HOOKS */
 
 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
 #if defined(MBEDTLS_MEMORY_DEBUG)
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index 1c68e76..bd4dbb6 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -1369,7 +1369,9 @@
 #endif  /* MBEDTLS_MEMORY_DEBUG */
 #endif  /* MBEDTLS_MEMORY_BUFFER_ALLOC_C */
 
+#if defined(MBEDTLS_TEST_HOOKS)
     test_hooks_init( );
+#endif /* MBEDTLS_TEST_HOOKS */
 
     /*
      * Make sure memory references are valid in case we exit early.
@@ -4004,6 +4006,7 @@
     mbedtls_psa_crypto_free( );
 #endif
 
+#if defined(MBEDTLS_TEST_HOOKS)
     /* Let test hooks detect errors such as resource leaks.
      * Don't do it in query_config mode, because some test code prints
      * information to stdout and this gets mixed with the regular output. */
@@ -4017,6 +4020,7 @@
         }
     }
     test_hooks_free( );
+#endif /* MBEDTLS_TEST_HOOKS */
 
 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
 #if defined(MBEDTLS_MEMORY_DEBUG)
diff --git a/programs/ssl/ssl_test_lib.h b/programs/ssl/ssl_test_lib.h
index 2712da6..98751a0 100644
--- a/programs/ssl/ssl_test_lib.h
+++ b/programs/ssl/ssl_test_lib.h
@@ -288,13 +288,6 @@
  */
 void test_hooks_free( void );
 
-#else /* MBEDTLS_TEST_HOOKS */
-
-/* Define macros that do nothing, for convenience. */
-#define test_hooks_init( ) ( (void) 0 )
-#define test_hooks_failure_detected( ) 0
-#define test_hooks_free( ) ( (void) 0 )
-
 #endif /* !MBEDTLS_TEST_HOOKS */
 
 #endif /* MBEDTLS_SSL_TEST_IMPOSSIBLE conditions: else */