[buildd-tools-devel] Bug#810248: sbuild: experimental sbuild breaks building in squeeze chroot due to build directory having setgid bit

[Raphaël Hertzog]

Package: sbuild
Version: 0.67.0-2.0~exp2
Severity: important

I just tried to build a package for squeeze-lts and got this failure:

[...]
Check dependencies
------------------

Merged Build-Depends: build-essential, fakeroot
Filtered Build-Depends: build-essential, fakeroot
dpkg-deb: control directory has bad permissions 2775 (must be >=0755 and <=0775)
dpkg-deb: building package `sbuild-build-depends-core-dummy' in `/<<BUILDDIR>>/resolver-lxgIE7/apt_archive/sbuild-build-depends-core-dummy.deb'.
Dummy package creation failed

+------------------------------------------------------------------------------+
| Cleanup                                                                      |
+------------------------------------------------------------------------------+

Purging /<<BUILDDIR>>
Not cleaning session: cloned chroot in use
E: Core build dependencies not satisfied; skipping


Effectively I see this:
$ ls -al /var/lib/sbuild/build/
total 8
drwxrws--- 2 sbuild sbuild 4096 janv.  7 17:27 .
drwxrws--- 4 sbuild sbuild 4096 oct.  26  2014 ..


Same problem happens with build in wheezy. Jessie is fine though.

Newer dpkg cope better with that apparently... but I don't think that the
"setgid" bit is necessary here.

Cheers,

-- System Information:
Debian Release: stretch/sid
  APT prefers squeeze-lts
  APT policy: (500, 'squeeze-lts'), (500, 'oldoldstable'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (500, 'oldstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages sbuild depends on:
ii  adduser         3.113+nmu3
ii  apt-utils       1.1.10
ii  libsbuild-perl  0.67.0-2.0~exp2
ii  perl            5.22.1-3

Versions of packages sbuild recommends:
ii  debootstrap  1.0.75
ii  fakeroot     1.20.2-1

Versions of packages sbuild suggests:
pn  deborphan  <none>
ii  wget       1.17.1-1

-- no debconf information