New.

testsuites/libtests/POSIX/flockfile.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 <stdio.h>
+
+int main(void)
+{
+  FILE *file = NULL;
+  flockfile(file);
+  return 0;
+}

testsuites/libtests/POSIX/ftrylockfile.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 <stdio.h>
+
+int main(void)
+{
+  FILE *file = NULL;
+  int ret = ftrylockfile(file);
+  return ret;
+}

testsuites/libtests/POSIX/funlockfile.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 <stdio.h>
+
+int main(void)
+{
+  FILE *file = NULL;
+  funlockfile(file);
+  return 0;
+}