Re: Multi-arch RPM at once

[Toralf Lund <toralf procaptura com>]

Michael Jennings wrote:

> On Monday, 31 January 2005, at 21:04:18 (-0500),
> James Olin Oden wrote:
>
>  
>
> > >   1.
> > >
> > > rpmbuild --target=i386,i686,x86_64
> > >          
> > Are you sure about that?  I am pretty positive that each rpm
> > produced will have the same arch unless rpmbuild has recently
> > changed.
> >    
>
> Try it and see. :)  mezzanine has used this technique since...well, at
> least since some point back when I was at VA (2000 or 2001).
>  
Nice. It's new to me as well that you can do this. But the functionality 
is perhaps not documented anywhere?

A couple of questions related to this:

  1. Can I get the same effect via rpm tag setup or macro definitions?
     I mean, can I do
     BuildArch: i386,i686,x86_64
     or similar in order to get multiple builds even when not using
     --target? (I don't think BuildArch works that way, but a different
     tag, perhaps? Or some kind of macro trickery?)
  2. Is there any way to tell the build invocations apart, besides
     testing the architecture? What I have in mind is something like
     %if %_now_executing_build_script_for_the_first_target_listed
     doSomething
     %else
     doSomethingElseEntirely
     %endif

- Toralf