-# When we import googletest >=1.4.0, we can drop this line.
-CPP.Flags += -DGTEST_HAS_TR1_TUPLE=0
+CPP.Flags += -DGTEST_USE_OWN_TR1_TUPLE
+
+# Disable pthreads if LLVM was configured without them.
+ifneq ($(HAVE_PTHREAD), 1)
+ CPP.Flags += -DGTEST_HAS_PTHREAD=0
+endif