Bug#764963: devscripts: dpkg 1.17.17 breaks debuild: dpkg-architecture: error: unknown Debian architecture -t, you must specify GNU system type, too

[Axel Beckert]

Package: devscripts
Version: 2.14.8
Severity: grave
Justification: debuild no more works at all

Dear devscripts Maintainers,

the upload of dpkg 1.17.17 included the following change which broke
debuild as it seems to call dpkg-architecture in a wrong way which now
no more works:

  * Normalize dpkg-architecture command-line parsing, so that «--option=value»
    «--option value», «-ovalue» and «-o value» will all be accepted.

This results in debuild calls to fail as follows:

~/wml/wml # debuild -uc -us
dpkg-architecture: error: unknown Debian architecture -t, you must specify GNU system type, too
dpkg-architecture: error: unknown Debian architecture -t, you must specify GNU system type, too
debuild: fatal error at line 982:
couldn't determine host architecture!?

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (600, 'testing'), (110, 'experimental'), (109, 'buildd-unstable'), (109, 'buildd-experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16-trunk-amd64 (SMP w/4 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages devscripts depends on:
ii  dpkg-dev     1.17.17
ii  libc6        2.19-11
ii  perl         5.20.1-1
ii  python3      3.4.2-1
pn  python3:any  <none>

Versions of packages devscripts recommends:
pn  at                          <none>
ii  curl                        7.38.0-2
ii  dctrl-tools                 2.23
ii  debian-keyring              2014.08.31
ii  dput-ng [dput]              1.8
ii  equivs                      2.0.9
ii  fakeroot                    1.20.2-1
ii  file                        1:5.19-2
ii  gnupg                       1.4.18-4
ii  libdistro-info-perl         0.13
ii  libencode-locale-perl       1.03-1
ii  libjson-perl                2.61-1
ii  liblwp-protocol-https-perl  6.06-2
ii  libparse-debcontrol-perl    2.005-4
ii  libsoap-lite-perl           1.11-1
ii  liburi-perl                 1.64-1
ii  libwww-perl                 6.08-1
ii  lintian                     2.5.28
ii  man-db                      2.7.0.2-2
ii  patch                       2.7.1-6
ii  patchutils                  0.3.3-1
ii  python3-debian              0.1.24
ii  python3-magic               1:5.19-2
ii  sensible-utils              0.0.9
ii  strace                      4.9-2
ii  unzip                       6.0-12
ii  wdiff                       1.2.2-1
ii  wget                        1.15-1+b1
ii  xz-utils                    5.1.1alpha+20120614-2

Versions of packages devscripts suggests:
ii  build-essential              11.7
pn  cvs-buildpackage             <none>
ii  devscripts-el                35.12
ii  gnuplot                      4.6.6-1
ii  gpgv                         1.4.18-4
ii  heirloom-mailx [mailx]       12.5-3
ii  libauthen-sasl-perl          2.1600-1
ii  libfile-desktopentry-perl    0.07-1
ii  libnet-smtp-ssl-perl         1.01-3
ii  libterm-size-perl            0.207-1+b2
ii  libtimedate-perl             2.3000-2
ii  libyaml-syck-perl            1.27-2+b2
ii  mutt                         1.5.23-1.1
ii  openssh-client [ssh-client]  1:6.7p1-2
ii  svn-buildpackage             0.8.5
ii  w3m                          0.5.3-17

-- no debconf information