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Re: how to cross architecture build a package



On Sun, Nov 25, 2007 at 11:54:28AM -0800, Steve Langasek wrote:
> On Sun, Nov 25, 2007 at 08:07:46PM +1100, Alex Samad wrote:
> > On Sat, Nov 24, 2007 at 10:59:32PM +0000, brian m. carlson wrote:
> > > On Sun, Nov 25, 2007 at 07:15:29AM +1100, Alex Samad wrote:
> > >> On Sat, Nov 24, 2007 at 01:17:52AM +0100, Pierre Habouzit wrote:
> > >>>   and when you build a package in there, wrap the
> > >>> debuild/dpkg-buildpackage/... call inside linux32.
> > >> why do i need linux32, I have build my package and used schroot. all seems 
> > >> to be well. note I am not doing any compiling !
> 
> > > If you use schroot, it takes care of setting up the Linux personality for 
> > > you, just as linux32 does, so you don't need both.  If your uname(2) call 
> > > returns i[3456]86, then your system will be treated as i386, and i386 
> > > packages will be built.  If it returns x86-64, then it will be treated as 
> > > amd64.  Linux personality support allows modifying the uname(2) call, so 
> > > packages will be compiled and built properly.
> 
> > I find it rather strange that you need a working environment to be able to 
> > build packages for that environment.
> 
> > Thing is I am only making meta packages but I am building it on a amd64 for a 
> > i386 environment.
> 
> If your package doesn't /do/ anything architecture-dependent, then you can
> build using dpkg-buildpackage -a<arch> to set the architecture string for
great I will try that 

Thanks

> the build environment.  But if your package build includes building
> binaries, probably the best outcome you can expect would be a build failure
> (the worst being a misbuild with screwed up dependencies, or with binaries
> for the wrong architecture in your package).
> 
> -- 
> Steve Langasek                   Give me a lever long enough and a Free OS
> Debian Developer                   to set it on, and I can move the world.
> vorlon@debian.org                                   http://www.debian.org/
> 
> 
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