Fixing timeval struct 'incomplete type' compiler errror 

--- b/gcr/test-secure-memory.c	2020-10-13 14:33:11.978028180 -0700
+++ a/gcr/test-secure-memory.c	2020-10-13 14:32:46.980542153 -0700
@@ -31,7 +31,9 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#ifndef sun
 #include <sys/resource.h>
+#endif
 #include <unistd.h>
 #include <sys/types.h>