libcrypt-cbc-perl dependency failure in Perl 5.12 rebuild on armel and powerpc

[Allison Randal]

Binary package hint: libcrypt-cbc-perl

Several packages are FTBFS in the Perl 5.12 rebuild on the armel and powerpc architectures, with errors related to a dependency on libcrypt-cbc-perl like:

** Using build dependencies supplied by package:
Build-Depends: debhelper (>= 7), perl (>= 5.6.0-12), libcrypt-cbc-perl
Checking for already installed source dependencies...
debhelper: missing
perl: already installed (5.12.3-6ubuntu4 >= 5.6.0-12 is satisfied)
libcrypt-cbc-perl: missing
Checking for source dependency conflicts...
  /usr/bin/sudo /usr/bin/apt-get --purge $CHROOT_OPTIONS -q -y install debhelper libcrypt-cbc-perl
Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libcrypt-cbc-perl : Depends: libcrypt-rijndael-perl but it is not going to be installed or
                              libcrypt-blowfish-perl but it is not going to be installed or
                              libcrypt-des-perl but it is not going to be installed or
                              libcrypt-des-ede3-perl but it is not going to be installed
E: Broken packages
apt-get failed.

On amd64 and i386, the dependency is satisfied by installing libcrypt-rijndael-perl, but on armel and powerpc, it isn't finding that package. This is surprising, since libcrypt-rijndael-perl did successfully rebuild with Perl 5.12 on oneiric for armel and powerpc (see https://launchpad.net/ubuntu/+source/libcrypt-rijndael-perl).

This is a blocker for the Oneiric migration to Perl 5.12, see http://orangesquash.org.uk/~laney/transitions/perl.html.

[Colin Watson (cjwatson)]

This was transient; I'm not quite sure exactly what went wrong, but the build failures went away after I retried them on Sunday evening, and all is now well with these packages. I think what probably happened is that the earlier build attempts were at a point when the core parts of Perl 5.12 were significantly less coinstallable.