New.

testsuites/libtests/POSIX/getuid.c

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+/*
+ * Copyright (c) 2009 by
+ * Ralf Corsépius, Ulm, Germany. All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * is freely granted, provided that this notice is preserved.
+ */
+
+#include <unistd.h>
+#include <sys/types.h>
+
+int
+main (void)
+{
+  uid_t uid;
+  uid = getuid ();
+
+  return 0;
+}