[PATCH] Fix start-stop-daemon on no-MMU

[Alex Landau]

Hi,

The attached patch fixes a compilation error:
   undefined reference to `_BUG_bb_daemonize_is_unavailable_on_nommu
and makes start-stop-daemon usable on no-MMU by using bb_daemonize only if BB_MMU and
emulating it if !BB_MMU.

This is a bit hackish, since after vfork(), the child does all the work and exec()s the
daemon, rather than execing right away, as the vfork paradigma says. Still I think this
is better than re-execing start-stop-daemon and only then execing the daemon itself since
this approach requires removing the -b (or --background) arguments from the command line,
which is not fun (what if there are several -b options? etc.), and does not give any
visible benefits.

You may also find some code duplications with the fork_and_reexec functions (i.e. call to
setsid, dupping /dev/null to 0,1 and 2), but I think this is unavoidable since all of
these functions either do something slightly different or do not work on no-MMU.

Regards,
Alex


       
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