Mojo + NaCl prototype.

mojo/public/cpp/system/handle.h

Index: mojo/public/cpp/system/handle.h
diff --git a/mojo/public/cpp/system/handle.h b/mojo/public/cpp/system/handle.h
index af81824603f6d00a7542b2173206105d551b93ee..b33d8068a652779f36b9aa7bf3c2b22716e2ca13 100644
--- a/mojo/public/cpp/system/handle.h
+++ b/mojo/public/cpp/system/handle.h
@@ -238,7 +238,15 @@ inline MojoResult CloseRaw(Handle handle) {
 
 // Strict weak ordering, so that |Handle|s can be used as keys in |std::map|s,
 // etc.
+#ifdef __native_client__
+// Passing the operands by reference confuses the STL implementation in NaCl's
+// GCC toolchain and results in specialized templates that break strict aliasing
+// rules.
+// TODO(ncbray): unhack this.
+inline bool operator<(const Handle a, const Handle b) {
+#else
 inline bool operator<(const Handle& a, const Handle& b) {
+#endif
   return a.value() < b.value();
 }