Merge branch 'feature/spurius-r-file' into 'master'

[Makefile] another touch -r on Mac OS

Like (merged) !645... 


See merge request !653

Makefile.generating

@@ -90,7 +90,7 @@ $(CONFIG_FILE): $(CONFIG_FILE).in VERSION share/Makefile.config Makefile.generat
 	  -e "s|@OPTDOT@|$(OPTDOT)|" \
           -e "s|@EXE@|$(EXE)|" \
           $< > $@.tmp
-	@touch $< -r $@.tmp
+	@touch -r $@.tmp $<
 	$(REPLACE) $@.tmp $@
 	$(RM) $@.tmp
 	$(CHMOD_RO) $@