diff --git a/mk/rt.mk b/mk/rt.mk
index af991f747b9..cd382267301 100644
--- a/mk/rt.mk
+++ b/mk/rt.mk
@@ -142,9 +142,10 @@ rt/$(1)/$(CFG_RUNTIME): $$(RUNTIME_OBJS_$(1)) $$(MKFILE_DEPS) \
 	  $$(CFG_GCCISH_POST_LIB_FLAGS) $$(RUNTIME_LIBS_$(1)) \
 	  $$(CFG_LIBUV_LINK_FLAGS),$$(RUNTIME_DEF_$(1)),$$(CFG_RUNTIME))
 
-# FIXME: For some reason libuv's makefiles can't figure out the correct definition
-# of CC on the mingw I'm using, so we are explicitly using gcc. Also, we
-# have to list environment variables first on windows... mysterious
+# FIXME: For some reason libuv's makefiles can't figure out the
+# correct definition of CC on the mingw I'm using, so we are
+# explicitly using gcc. Also, we have to list environment variables
+# first on windows... mysterious
 
 ifdef CFG_ENABLE_FAST_MAKE
 LIBUV_DEPS := $$(S)/.gitmodules
diff --git a/mk/rustllvm.mk b/mk/rustllvm.mk
index 8453f7b9468..fea09dae5af 100644
--- a/mk/rustllvm.mk
+++ b/mk/rustllvm.mk
@@ -14,11 +14,6 @@ endif
 
 RUSTLLVM_OBJS_CS_$(1) := $$(addprefix rustllvm/, RustWrapper.cpp)
 
-# Behind an ifdef for now since this requires a patched LLVM.
-ifdef CFG_STACK_GROWTH
-RUSTLLVM_OBJS_CS_$(1) += rustllvm/RustPrologHook.cpp
-endif
-
 RUSTLLVM_DEF_$(1) := rustllvm/rustllvm$$(CFG_DEF_SUFFIX)
 
 RUSTLLVM_INCS_$(1) = $$(LLVM_EXTRA_INCDIRS_$(1)) \