Package: sbuild Version: 0.60.8-1 Severity: wishlist Hello,
I would love sbuild to gain the ability to handle cross builds. What is a cross build? Well, it is a way to generate a binary which it is meant to run on a foreign architecture. For cross builds you need cross tools, which are not yet in Debian archive, but those are available via emdebian.org repositories. So basically, you need to add deb http://emdebian.org squeeze main into your sources.list, update and install, for example, linux-libc-dev-armel-cross, libc6-dev-armel-cross, gcc-4.3-arm-linux-gnueabi, .. Once you got the cross toolchain in place, you can try to cross compile hello application passing -a$arch option to dpkg-buildpackage and the package must support cross building, usually by adding a three liner [0] to the package build system file. (sid_amd64)zumbi@cat:/tmp/hello-2.6$ dpkg-buildpackage -us -uc -rfakeroot -aarmel [...] chown -R root:root debian/tmp chmod -R u+w,go=rX debian/tmp dpkg --build debian/tmp .. dpkg-deb: building package `hello' in `../hello_2.6-1_armel.deb'. dpkg-genchanges >../hello_2.6-1_armel.changes dpkg-genchanges: including full source code in upload dpkg-source --after-build hello-2.6 dpkg-buildpackage: full upload (original source is included) When trying sbuild to do it for me, $ sudo sbuild -d sid_amd64 --debbuildopt="-aarmel" hello_2.6-1 [...] chmod -R u+w,go=rX debian/tmp dpkg --build debian/tmp .. dpkg-deb: building package `hello' in `../hello_2.6-1_armel.deb'. dpkg-genchanges -B >../hello_2.6-1_armel.changes dpkg-genchanges: arch-specific upload - not including arch-independent packages dpkg-genchanges: binary-only upload - not including any source code dpkg-source --after-build hello-2.6 dpkg-buildpackage: binary only upload (no source included) Build finished at 20110121-1105 Can't find hello_2.6-1_amd64.changes -- can't dump info Package contents Finished Built successfully Purging /srv/chroot/sid_amd64/build/root-hello_2.6-1-amd64-D9WaOO Finished at 20110121-1105 Build needed 00:00:12, 4812k disc space Sbuild builds the package but it is unable to take it out of the chroot, because it is unable to find the right changes file for the right architecture. "Can't find hello_2.6-1_amd64.changes -- can't dump info" Doing a $nasty hack on Build.pm we are able to follow *_armel.changes file. $ sudo vi /usr/share/perl5/Sbuild/Build.pm +1944 # Figure out chroot architecture sub chroot_arch { my $self = shift; my $nasty = "armel"; ^^^^^ my $pipe = $self->get('Session')->pipe_command( { COMMAND => [$self->get_conf('DPKG'), '--print-architecture'], USER => $self->get_conf('USERNAME'), CHROOT => 1, PRIORITY => 0, DIR => '/' }) || return undef; chomp(my $chroot_arch = <$pipe>); close($pipe); die "Can't determine architecture of chroot: $!\n" if ($? || !defined($chroot_arch)); return $nasty; ^^^^^ # return $chroot_arch; } It seems that sbuild triggers dpkg --print-architecture to find out chroot architecture, but when doing cross it should try to follow dpkg-architecture's DEB_HOST_ARCH. Would it be possible to modify Build.pm in some way, either calling dpkg-architecture or autodetecting -a$arch has been passed and it should follow other architecture changes file? Have a very nice day! [0] http://wiki.debian.org/EmdebianGuide#Addingcross-builddetection Best regards, -- Héctor Orón -- System Information: Debian Release: 6.0 APT prefers unstable APT policy: (700, 'unstable'), (600, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 2.6.32-5-amd64 (SMP w/8 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages sbuild depends on: ii adduser 3.112+nmu2 add and remove users and groups ii libsbuild-perl 0.60.8-1 Tool for building Debian binary pa ii perl 5.10.1-17 Larry Wall's Practical Extraction ii perl-modules 5.10.1-17 Core Perl modules Versions of packages sbuild recommends: ii debootstrap 1.0.26 Bootstrap a basic Debian system ii fakeroot 1.14.5-1 Gives a fake root environment Versions of packages sbuild suggests: pn deborphan <none> (no description available) ii wget 1.12-2.1 retrieves files from the web -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
