Bug#740202: lintian: doesnt detect invalid arch in "Build-Depends: foo, foo [blub]"

[Johannes Schauer <j.schauer@email.de>]

Package: lintian
Version: 2.5.22
Severity: normal

Hi,

as suggested by Niels Thykier on IRC I'm reporting the following issue:

Given the line:

	Build-Depends: foo, foo [blub]

lintian will not detect the invalid arch "blub". Though it does find it
if the line says:

	Build-Depends: foo [blub], foo

I found this while trying to create a patch for build profiles. The
following would not produce an error (but should):

	Build-Depends: foo, foo <blubber>

It seems the relevant code in checks/fields.pm is not run.

cheers, josch

-- System Information:
Debian Release: jessie/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.11-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages lintian depends on:
ii  binutils                       2.24-3
ii  bzip2                          1.0.6-5
ii  diffstat                       1.57-1
ii  file                           1:5.14-2
ii  gettext                        0.18.3.1-2
ii  hardening-includes             2.4
ii  intltool-debian                0.35.0+20060710.1
ii  libapt-pkg-perl                0.1.29+b1
ii  libarchive-zip-perl            1.30-7
ii  libclass-accessor-perl         0.34-1
ii  libclone-perl                  0.35-1
ii  libdpkg-perl                   1.17.7
ii  libemail-valid-perl            1.192-1
ii  libfile-basedir-perl           0.03-1
ii  libipc-run-perl                0.92-1
ii  liblist-moreutils-perl         0.33-1+b2
ii  libparse-debianchangelog-perl  1.2.0-1
ii  libtext-levenshtein-perl       0.06~01-2
ii  libtimedate-perl               2.3000-1
ii  liburi-perl                    1.60-1
ii  man-db                         2.6.5-2
ii  patchutils                     0.3.2-3
ii  perl [libdigest-sha-perl]      5.18.2-2
ii  t1utils                        1.37-2

Versions of packages lintian recommends:
ii  libautodie-perl                 2.21-1
ii  libperlio-gzip-perl             0.18-1+b3
ii  perl-modules [libautodie-perl]  5.18.2-2

Versions of packages lintian suggests:
pn  binutils-multiarch     <none>
ii  dpkg-dev               1.17.7
ii  libhtml-parser-perl    3.71-1+b1
ii  libtext-template-perl  1.46-1
ii  libyaml-perl           0.84-1
ii  xz-utils               5.1.1alpha+20120614-2