Fix `make clean` handling of generated files
Closes
_p('\t$(SILENT) rm -rf $(OBJDIR)')
_p('else')
_p('\t$(SILENT) if exist $(subst /,\\\\,$(TARGET)) del $(subst /,\\\\,$(TARGET))')
- _p('\t$(SILENT) if exist $(subst /,\\\\,$(GENERATED)) rmdir /s /q $(subst /,\\\\,$(GENERATED))')
+ _p('\t$(SILENT) if exist $(subst /,\\\\,$(GENERATED)) del /s /q $(subst /,\\\\,$(GENERATED))')
_p('\t$(SILENT) if exist $(subst /,\\\\,$(OBJDIR)) rmdir /s /q $(subst /,\\\\,$(OBJDIR))')
_p('endif')
_p('')
