target-supports.exp (check_effective_target_cilkplus): cilkplus targets require pthreads.

	* lib/target-supports.exp (check_effective_target_cilkplus):
	cilkplus targets require pthreads.

From-SVN: r232062

gcc/testsuite/ChangeLog

+2016-01-04  Mike Stump  <mikestump@comcast.net>
+
+	* lib/target-supports.exp (check_effective_target_cilkplus):
+	cilkplus targets require pthreads.
+
 2016-01-04  Michael Meissner  <meissner@linux.vnet.ibm.com>
 
 	* gcc.target/powerpc/p9-permute.c: New test for xxperm code

gcc/testsuite/lib/target-supports.exp

@@ -1447,6 +1447,10 @@ proc check_effective_target_cilkplus { } {
 	return 0;
     }
 
+    if { ! [check_effective_target_pthread] } {
+	return 0;
+    }
+
     return 1
 }