Public bug reported:

Ubuntu 16.04.2 LTS
dar: 2.5.3-1ubuntu1
libgpgme11-dev: 1.6.0-1

Since 2.5.0, dar supports LZMA compression. However, the packages
provided in xenial do not include this support.

For LZMA, no changes should be necessary except adding liblzma-dev to
Build-Depends, and liblzma5 to Built-Using. So long it is installed on
the building system, dar's configure script should pull it in
automatically (eg no change to build arguments). I have verified by
rebuilding the package myself locally.

It seems that something is wrong with the gpgme support however, as the
configure script reports "Public key cipher support  : NO" even though
libgpgme11-dev is already a build dependency and is installed. Even
passing the "--enable-gpgme-linking" argument doesn't work. Log details
will follow this paragraph. I do not see a max version in the script,
and the available version is newer than the minimum version. There is
also an API version check, but it appears to just be testing for a value
greater than 0 (1 is returned by the tool). I have no idea why it's
failing the tests in the configure script.

configure output relating to gpgme:
configure:24376: checking for gpgme-config
configure:24394: found /usr/bin/gpgme-config
configure:24407: result: /usr/bin/gpgme-config
configure:24429: WARNING: asymetrical encryption support has been disabled by 
user 

The full config.log is attached to this report. You can also see it pull
in LZMA support, should you wish :) Additionally, I've included my
amended debian/control including the LZMA stuffs, for convenience.

** Affects: dar (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "config.log, control"
   
https://bugs.launchpad.net/bugs/1696766/+attachment/4892350/+files/dar-2.5.3_bugreport.tar.gz

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https://bugs.launchpad.net/bugs/1696766

Title:
  build with liblzma support

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