Make mem{cpy,move,set} pnacl bitcode disablement apply to biased bitcode.

newlib/libc/string/memcpy.c

Index: newlib/libc/string/memcpy.c
diff --git a/newlib/libc/string/memcpy.c b/newlib/libc/string/memcpy.c
index 2d73453584f3a33f39c9aba11bc694d92d00a4ad..0cde841e7d6334dbbbb559710d2d944ae4cd1abe 100644
--- a/newlib/libc/string/memcpy.c
+++ b/newlib/libc/string/memcpy.c
@@ -36,9 +36,11 @@ QUICKREF
 
 /*
  * The body of this function should not appear in PNaCl bitcode.
+ * We use PNACL_BITCODE instead of __le32__ or __pnacl__ since this
+ * should also apply to biased bitcode.
  * See https://code.google.com/p/nativeclient/issues/detail?id=3493
  */
-#ifndef __pnacl__
+#ifndef PNACL_BITCODE
 
 #include <_ansi.h>
 #include <string.h>
@@ -116,4 +118,4 @@ _DEFUN (memcpy, (dst0, src0, len0),
 #endif /* not PREFER_SIZE_OVER_SPEED */
 }
 
-#endif /* __pnacl__ */
+#endif /* PNACL_BITCODE */