[Bug 1229425] Re: dpkg-buildpackage parameter -j not given to make

[Dylan McCall]

Could you take a look at the offending debian/rules? This is probably
because it's calling dh without --parallel.

>From `man dh`:

    If your package can be built in parallel, you can support parallel
    building as follows. Then dpkg-buildpackage -j will work.

    #!/usr/bin/make -f
    %:
        dh $@ --parallel


And from `man debhelper`:

    --parallel
        Enable parallel builds if underlying build system supports them.
        The number of parallel jobs is controlled by the DEB_BUILD_OPTIONS
        environment variable ("Debian Policy, section 4.9.1") at build
        time. It might also be subject to a build system specific limit.

        If this option is not specified, debhelper currently defaults to
        not allowing parallel package builds.

I *think* the way this works is cdbs will figure out to set the
--parallel parameter on its own, but if our rules file doesn't do that,
it isn't going to happen. So, I think the core issue here is that the
documentation for dpkg-buildpackage is a little misleading, or at least
isn't as helpful as it really should be.

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https://bugs.launchpad.net/bugs/1229425

Title:
  dpkg-buildpackage parameter -j not given to make

Status in dpkg package in Ubuntu:
  New

Bug description:
  In building a debian package the command dpkg-buildpackage does not
  hand parameter "-j6" to the make command. The make command keeps
  getting called with parameter "-j1".

  This contradicts with the description for command dpkg-buildpackage.
  Warning: next to controlling parameter for command make, this
  parameter seems to control setting  parallel=jobs in the
  DEB_BUILD_OPTIONS variable (not known to me).

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: dpkg-dev 1.16.10ubuntu1
  ProcVersionSignature: Ubuntu 3.8.0-30.44-generic 3.8.13.6
  Uname: Linux 3.8.0-30-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  Date: Mon Sep 23 23:15:10 2013
  InstallationDate: Installed on 2013-05-16 (130 days ago)
  InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1)
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: dpkg
  UpgradeStatus: No upgrade log present (probably fresh install)

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