* tst-join5.c (tf1, tf2): Add a cast.

* tst-join5.c (tf1, tf2): Add a cast.

	* Makeconfig (includes): Append -I$(..)nptl to this variable.

	* tst-barrier2.c (do_test) [! _POSIX_THREAD_PROCESS_SHARED]:
	Don't test anything.
	* tst-cond4.c: Likewise.
	* tst-cond6.c: Likewise.
	* tst-flock2.c: Likewise.
	* tst-mutex4.c: Likewise.
	* tst-rwlock4.c: Likewise.
	* tst-signal1.c: Likewise.
	* tst-spin2.c: Likewise.
	* tst-cond11.c [! _POSIX_CLOCK_SELECTION]: Likewise.

	* tst-mutex4.c: Use test-skeleton.c.
	* tst-spin2.c: Likewise.
	* tst-sysconf.c: Likewise.
	* tst-barrier2.c: Likewise.
	* tst-cond4.c: Likewise.
	* tst-cond6.c: Likewise.
	* tst-rwlock4.c: Likewise.
	* tst-unload.c: Likewise.
	* tst-flock2.c (do_test): Use return instead of exit.