diff --git a/tests/set_ptracer_any.c b/tests/set_ptracer_any.c
index 3b4ea2cb..9d206259 100644
--- a/tests/set_ptracer_any.c
+++ b/tests/set_ptracer_any.c
@@ -37,10 +37,16 @@ int main(int argc, char **argv)
 {
 	if (argc < 2)
 		return 99;
-#if defined HAVE_PRCTL && defined PR_SET_PTRACER && defined PR_SET_PTRACER_ANY
-	/* Turn off restrictions on tracing if applicable.  If the options
+#ifdef HAVE_PRCTL
+	/* Turn off restrictions on tracing if applicable.  If the command
 	 * aren't available on this system, that's OK too.  */
-	(void) prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY);
+# ifndef PR_SET_PTRACER
+#  define PR_SET_PTRACER 0x59616d61
+# endif
+# ifndef PR_SET_PTRACER_ANY
+#  define PR_SET_PTRACER_ANY -1UL
+# endif
+	(void) prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0);
 #endif
 	if (write(1, "\n", 1) != 1) {
 		perror("write");