[ENBD] change to Makefile

[Peter T. Breuer]

"Also sprach Roberto Favaro:"
> I tried to make install but there were errors in the modules installation.

Oh ...

> I changed this line in Makefile .row 47:
> 
> from
> INSTALL      = install
> to
> INSTALL      = install -D

Thanks!

> It creates the directory as needed.
> 
> This because some times with a new kernel there is no directory created 
> kernel/block .

:-). There certainly should be, if you've installed its modules. You
are saying you didn't build any block driver modules apart from enbd?
I'm flattered!

I think it's probably better to put a mkdir -p in the module-install
instructions, however.

module-install:
        mkdir -p $(MODDIR)
        for m in enbd.o enbd_ioctl.o enbd_bufferwr.o enbd_raw.o; do \
                $(INSTALL) $(BUILD)/$$m $(MODDIR)/$$m; \
        done

I don't know how universal -d is on install, and I don't understand the 
definition:

         -d, --directory
              treat all arguments as directory names; create  all
              components of the specified directories

done. Thanks!

Peter