[Bug 2003266] Re: 22.04 package lacks GSSAPI support

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https://bugs.launchpad.net/bugs/2003266

Title:
  22.04 package lacks GSSAPI support

Status in neon27 package in Ubuntu:
  Confirmed

Bug description:
  [ Impact ]

   * GSSAPI was disabled by accident as a side-effect of packaging a new release.
     Upstream renamed the environment variable used to setup the feature and the
     flag was not updated in d/rules.

   * Users get caught off-guard when updating from 18.04 to 20.04, 22.04 is not
     affected.

  [ Test Plan ]

   * Did not test the binary, confirmed the fix is effective by analyzing the
     build logs.

   * I've confirmed that the issue
     is solved by checking for the presence of the following string in the build
     logs:
        checking for krb5-config... /usr/bin/krb5-config.mit
     Whereas a build with the issue will instead output:
        checking for krb5-config... none

   * I believe the fix is non-intrusive enough that no further testing
  is needed.

  [ Where problems could occur ]

   * Enabling a new feature could have a side effect of disabling another
     mutually-exclusive feature, but I did not identify any.

   * Enabling a new feature could break a different feature which changes its
     behavior when this new feature is present, I also did not identify any such
     case.

  [ Other Info ]

   * Upstream bug reports:
     - https://github.com/notroj/neon/issues/102
     - https://github.com/notroj/neon/issues/52
   * Upstream breaking change:
     - https://github.com/notroj/neon/commit/b9b7425de38b35249e689c03c30c8fd8adfae806
   * Upstream change to avoid this from happening again:
     - https://github.com/notroj/neon/commit/4fdcff4a0ccbb0924f7dabcf8d213452aa33ab82
   * Launchpad bug:
     - https://bugs.launchpad.net/ubuntu/+source/neon27/+bug/2003266

  [ Original description ]

  For more information, please see
  https://github.com/notroj/neon/issues/102.

  The 22.04 built package of neon lacks GSSAPI support, whereas previous
  versions (e.g. 18.04) had this support built-in. This appears to be
  due to a recent-ish change in the build logic for neon, which changes
  when GSSAPI is compiled in to the library
  (https://github.com/notroj/neon/commit/b9b7425de38b35249e689c03c30c8fd8adfae806)

  We were able to get a work around building from source with the
  following envvar during build-time:
  KRB5_CONF_TOOL=/usr/bin/krb5-config.mit ./configure. TL;DR:
  KRB5_CONFIG became KRB5_CONF_TOOL.

  Version information:

  $ lsb_release -rd
  Description:	Ubuntu 22.04.1 LTS
  Release:	22.04

  $ apt show libneon27
  Package: libneon27
  Version: 0.32.2-1
  Priority: optional
  Section: universe/libs
  Source: neon27
  Origin: Ubuntu
  Maintainer: Ubuntu Developers <ubuntu-devel-discuss at lists.ubuntu.com>
  Original-Maintainer: Laszlo Boszormenyi (GCS) <gcs at debian.org>
  Bugs: https://bugs.launchpad.net/ubuntu/+filebug
  Installed-Size: 233 kB
  Depends: libc6 (>= 2.33), libssl3 (>= 3.0.0~~alpha1), libxml2 (>= 2.7.4), zlib1g (>= 1:1.1.4)
  Homepage: https://notroj.github.io/neon/
  Download-Size: 102 kB
  APT-Manual-Installed: no
  APT-Sources: [corporate Launchpad mirror]
  Description: HTTP and WebDAV client library

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