Le Sat, 17 Feb 2007 07:13:44 +0900
John Summerfield <debian@xxxxxxxxxxxxxxxxxxxxxx> écrivait:
> Johnny Hughes wrote:
> > On Fri, 2007-02-16 at 16:53 +0100, Martin Hamant wrote:
> >> Hi
> >>
> >> I want to recompile some RPMs (my own) for x86_64 arch from my i386
> >> compatible build host (because of hardware restriction/funds).Is
> >> anyone ever done this ? After a google search, it seems not so
> >> easy... i just found this:
> >> http://www.speedblue.org/cross_compilation/ but haven't tried it
> >> yet (i would have to convert these to RPM first).
> >>
> >> How is it done for Centos SRPMS rebuilds ? is it a different
> >> hardware for each target arch ?
> >
> > This will not be easy to do.
> >
> > You can fairly easily build a cross compiler ... HOWEVER
> >
> > You are also going to need to install packages that are
> > BuildRequires for the packages that you want to build (so you can
> > compile against them) ... and the xxxxxxx-devel.x86_64 files (the
> > ones with the headers) are going to all REQUIRE the xxxxxxx.x86_64
> > packages too.
> >
> > It is almost impossible to do this without installing the x86_64
> > distro ... and that requires an x86_64 capable processor.
> >
> > You might be able to emulate it (maybe qemu), but by the time you do
> > that it would have been cheaper and easier to have spent $300.00 and
> > obtained a cheap machine to do it on.
>
> It might also be possible to build a cross compiler, then do your
> "make && make install" from the source tree to put the binaries
> someplace, maybe /tmp/Build/package, and to construct a spec file
> that will take those binaries and create an rpm using those as "data"
> files. It's the sort of thing you'd do to transform a tarball of
> proprietary binaries into an rpm.
>
> In the build environment, you do away with all the benefits of rpm,
> but it might work.
>
>
John and Johnny, thank you !
But i think i'm going to forget this idea ^^
I like the emulation idea. I'll take look at vmware, the free version.
--
Martin
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