--- a/src/share/vm/runtime/thread.hpp	Mon Feb 21 19:17:10 2011 +0100
+++ b/src/share/vm/runtime/thread.hpp	Mon Feb 21 19:17:33 2011 +0100
@@ -1602,6 +1602,12 @@
 #ifdef TARGET_OS_ARCH_windows_x86
 # include "thread_windows_x86.hpp"
 #endif
+#ifdef TARGET_OS_ARCH_linux_arm
+# include "thread_linux_arm.hpp"
+#endif
+#ifdef TARGET_OS_ARCH_linux_ppc
+# include "thread_linux_ppc.hpp"
+#endif
 
 
  public:
@@ -1678,16 +1684,6 @@
   return cur_sp > low_addr ? cur_sp - low_addr : 0;
 }
 
-// A JavaThread for low memory detection support
-class LowMemoryDetectorThread : public JavaThread {
-  friend class VMStructs;
-public:
-  LowMemoryDetectorThread(ThreadFunction entry_point) : JavaThread(entry_point) {};
-
-  // Hide this thread from external view.
-  bool is_hidden_from_external_view() const      { return true; }
-};
-
 // A thread used for Compilation.
 class CompilerThread : public JavaThread {
   friend class VMStructs;