hypothetical fix for #8865.

Author: pnkfelix

mk/target.mk

@@ -32,13 +32,15 @@ define TARGET_STAGE_N
 
 $$(TLIB$(1)_T_$(2)_H_$(3))/libmorestack.a: \
 		rt/$(2)/stage$(1)/arch/$$(HOST_$(2))/libmorestack.a \
-		| $$(TLIB$(1)_T_$(2)_H_$(3))/
+		| $$(TLIB$(1)_T_$(2)_H_$(3))/ \
+		  $(HBIN0_H_$(CFG_BUILD_TRIPLE))/rustc$(X_$(CFG_BUILD_TRIPLE))
 	@$$(call E, cp: $$@)
 	$$(Q)cp $$< $$@
 
 $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_RUNTIME_$(2)): \
 		rt/$(2)/stage$(1)/$(CFG_RUNTIME_$(2)) \
-		| $$(TLIB$(1)_T_$(2)_H_$(3))/
+		| $$(TLIB$(1)_T_$(2)_H_$(3))/ \
+		  $(HBIN0_H_$(CFG_BUILD_TRIPLE))/rustc$(X_$(CFG_BUILD_TRIPLE))
 	@$$(call E, cp: $$@)
 	$$(Q)cp $$< $$@
 
@@ -77,7 +79,8 @@ ifneq ($$(findstring $(2),$$(CFG_HOST_TRIPLES)),)
 
 $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_RUSTLLVM_$(3)): \
 		rustllvm/$(2)/$(CFG_RUSTLLVM_$(3)) \
-		| $$(TLIB$(1)_T_$(2)_H_$(3))/
+		| $$(TLIB$(1)_T_$(2)_H_$(3))/ \
+		  $(HBIN0_H_$(CFG_BUILD_TRIPLE))/rustc$(X_$(CFG_BUILD_TRIPLE))
 	@$$(call E, cp: $$@)
 	$$(Q)cp $$< $$@