stl_algo.h (random_shuffle): Only define for hosted implementations.

	* include/bits/stl_algo.h (random_shuffle): Only define for hosted
	implementations.

From-SVN: r222542

libstdc++-v3/ChangeLog

 2015-04-28  Jonathan Wakely  <jwakely@redhat.com>
 
+	* include/bits/stl_algo.h (random_shuffle): Only define for hosted
+	implementations.
+
+2015-04-28  Jonathan Wakely  <jwakely@redhat.com>
+
 	* Makefile.am (SUBDIRS): Move python to hosted_source.
 	* Makefile.in: Regenerate.
 	* acinclude.m4 (glibcxx_SUBDIRS): Reorder.

libstdc++-v3/include/bits/stl_algo.h

@@ -4420,6 +4420,7 @@ _GLIBCXX_BEGIN_NAMESPACE_ALGO
 				std::__iterator_category(__result));
     }
 
+#if _GLIBCXX_HOSTED
   /**
    *  @brief Randomly shuffle the elements of a sequence.
    *  @ingroup mutating_algorithms
@@ -4450,6 +4451,7 @@ _GLIBCXX_BEGIN_NAMESPACE_ALGO
 	      std::iter_swap(__i, __j);
 	  }
     }
+#endif
 
   /**
    *  @brief Shuffle the elements of a sequence using a random number