* testsuite/libgomp.c/affinity-1.c: Include <sys/wait.h>.
	* testsuite/libgomp.c/nqueens-1.c: Include <stdlib.h>.
	* testsuite/libgomp.c/thread-limit-1.c: Include <omp.h>
	* testsuite/libgomp.c/thread-limit-2.c: Likewise.

From-SVN: r215927