--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -3001,7 +3001,7 @@ ifeq ($(LLVMOBJDIR),)
 # LLVM LOCAL
 libbackend.o : $(OBJS-common:.o=.c) $(out_file) $(out_cxx_file) \
   insn-config.h insn-flags.h insn-codes.h insn-constants.h \
-  insn-attr.h  $(DATESTAMP) $(BASEVER) $(DEVPHASE)
+  insn-attr.h  $(DATESTAMP) $(BASEVER) $(DEVPHASE) gcov-iov.h
 	$(CC) $(ALL_CFLAGS) $(ALL_CPPFLAGS) \
 	  -DTARGET_NAME=\"$(target_noncanonical)\" \
 	  -DLOCALEDIR=\"$(localedir)\" \