Try to debug the debug_options_guard.h failure

Author: mkj

.github/workflows/outoftree.yml

@@ -18,5 +18,5 @@ jobs:
           mkdir build
           cd build
           ../configure --enable-fuzz --enable-bundled-libtom
-          make -j3
+          make -d -j3
           make -j3 fuzzstandalone

Makefile.in

@@ -174,9 +174,9 @@ default_options_guard.h: $(srcdir)/default_options.h
 	@echo Creating $@
 	@printf "/*\n > > > Do not edit this file (default_options_guard.h) < < <\nGenerated from "$^"\nLocal customisation goes in localoptions.h\n*/\n\n" > $@.tmp
 	@$(srcdir)/ifndef_wrapper.sh < $^ >> $@.tmp
-	@mv $@.tmp $@
-	@pwd
-	@ls -l $@
+	mv -v $@.tmp $@
+	pwd
+	ls -l $@
 
 strip: $(TARGETS)
 	$(STRIP) $(addsuffix $(EXEEXT), $(TARGETS))