> > I noticed a problem with executing actions where
one of the commands
> > exits with a failure.
> > I'm running on Windows 2000, Boost.Build V2
(Milestone 10) from CVS,
> > Boost.Jam 03.1.12, and using MS VC, trying to
compile an idl file.
> > This is the action used:
> >
> > actions compile.idl
> > {
> > $(.IDL) <...>
> > $(TOUCH_FILE) "$(<[4]:W)"
> > $(TOUCH_FILE) "$(<[5]:W)"
> > }
>
>
> I believe that bjam executes multi-line commands by
writing a
> bat file and
> then executing it. Return status of bat file is the
return
> status of the last
> command, so in this case, it will be return status of
the
> second touch
> command. You can use this:
>
> $(.IDL) <...> &&
> $(TOUCH_FILE) "$(<[4]:W)"
&&
> $(TOUCH_FILE) "$(<[5]:W)"
>
> to achieve the effect you want.
If this is the proper solution, shouldn't this be used all
over the
place in the standard tools? Many actions exist with
multiple commands.
Btw, the quoted action is from msvc.jam in build/v2/tools.
Are you sure this is the right solution? I'd expect a bit
more support
from bjam solving this problem, because it's a very generic
problem.
Best regards,
Richard Peters
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