[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Launchpad Bug Tracker]

This bug was fixed in the package krb5 - 1.14.2+dfsg-1ubuntu1

---
krb5 (1.14.2+dfsg-1ubuntu1) yakkety; urgency=medium

  * Fix uninitialized variable warning on ppc64el (LP: #1592841).
Thanks to Sam Hartman for the preliminary patch.

 -- Steve Langasek   Wed, 16 Jun 2016
08:58:08 +0300

** Changed in: krb5 (Ubuntu)
   Status: Confirmed => Fix Released

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Steve Langasek]

Turns out that last error was the final one breaking the build.
Attached is the complete patch I've just uploaded to yakkety.

** Patch added: "krb5-1592841.patch"
   
https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/1592841/+attachment/4684703/+files/krb5-1592841.patch

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: krb5 (Ubuntu)
   Status: New => Confirmed

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Jeremy Bicha]

Sam, if you wanted to test your patches on Ubuntu's ppc64el, you can use
a PPA.

Just click the "Change details" link on your PPA and tell it to build
packages for the ppc64el architecture too.

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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Re: [Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Sam Hartman]

> "Till" == Till Kamppeter <1592...@bugs.launchpad.net> writes:

Till> Build the package on the system which you have at hand (amd64,
Till> i386, ...), directing the build output into a file. Search
Till> through the output to see whther there are any compiler
Till> warnings and fix them all. With that done the package should
Till> build on ppc64el.

No, that won't work.
The issue is the ppc64el compiler is behaving differently than the amd64
compiler.
The warning would be an error on any platform.
It's not an warning on amd64, nor is it a warning for ppc64el in debian.

I've spent the time I have here.  On the Debian side I'd definitely take
a patch that added extra extranious initializations to pacify the
compiler.
I recommend that approach to avoid a divergence between ubuntu and
debian.

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Till Kamppeter]

Fails also, but at a later point:

https://launchpadlibrarian.net/265602766/buildlog_ubuntu-yakkety-
ppc64el.krb5_1.14.2+dfsg-1ubuntu1+ppa4_BUILDING.txt.gz

What you need to do is the following:

Build the package on the system which you have at hand (amd64, i386,
...), directing the build output into a file. Search through the output
to see whther there are any compiler warnings and fix them all. With
that done the package should build on ppc64el.

Or look into the buildlog for amd64 on Launchpad to find all the
warnings.

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Sam Hartman]

Try this.  I've fixed the new instance of the error as well. Incremented
the version number so the patch has a different name, but you may not
want to do that if you end up uploading

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Sam Hartman]

** Patch added: "krb5_1.14.2+dfsg-1ubuntu2.debdiff"
   
https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/1592841/+attachment/4684544/+files/krb5_1.14.2+dfsg-1ubuntu2.debdiff

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Till Kamppeter]

With your last debdiff I was able to generate a source package which I
have uploaded to my PPA (ppc64el activated before) but it still does not
build on ppc64el. Here is the build log:

https://launchpad.net/~till-
kamppeter/+archive/ubuntu/ppa/+build/10024486/+files/buildlog_ubuntu-
yakkety-ppc64el.krb5_1.14.2+dfsg-1ubuntu1+ppa2_BUILDING.txt.gz

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Ubuntu Foundations Team Bug Bot]

The attachment "krb5_1.14.2+dfsg-1ubuntu1.debdiff" seems to be a
debdiff.  The ubuntu-sponsors team has been subscribed to the bug report
so that they can review and hopefully sponsor the debdiff.  If the
attachment isn't a patch, please remove the "patch" flag from the
attachment, remove the "patch" tag, and if you are member of the
~ubuntu-sponsors, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by
~brian-murray, for any issue please contact him.]

** Tags added: patch

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Sam Hartman]

I've replaced the debdiff with one that hopefully works.  I'm sorry for
spacing at the controls there.  Perhaps yearning for a simpler time:-)

** Patch added: "revised patch take 2"
   
https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/1592841/+attachment/4684531/+files/krb5_1.14.2+dfsg-1ubuntu1.debdiff

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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Re: [Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Sam Hartman]

O, sorry.
I knew that seemed simpler than it should have been:-)
Yeah, you could stick single-debian-patch in debian/source/options and
it would work, but I'll do it right.


** Patch removed: "krb5_1.14.2+dfsg-1ubuntu1.debdiff"
   
https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/1592841/+attachment/4684512/+files/krb5_1.14.2+dfsg-1ubuntu1.debdiff

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Till Kamppeter]

Sam, your debdiff does not work this way. You have directly edited the
upstream code instead of creating a patch in debian/patches/. Can you do
a new debdiff with a proper patch for your change? Thanks.

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Sam Hartman]

Can I get you to try the attached debdiff and upload if it works (I am
not an ubuntu developer).  I don't have a ppc64el test environment.
This should either work or get us much closer.

** Patch added: "krb5_1.14.2+dfsg-1ubuntu1.debdiff"
   
https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/1592841/+attachment/4684512/+files/krb5_1.14.2+dfsg-1ubuntu1.debdiff

** Changed in: krb5 (Ubuntu)
 Assignee: Sam Hartman (hartmans) => (unassigned)

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Sam Hartman]

Looks simple; preparing fix

** Changed in: krb5 (Ubuntu)
 Assignee: (unassigned) => Sam Hartman (hartmans)

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Till Kamppeter]

I tried to replace the -O3 in the CFLAGS by -O2, by adding

DEB_HOST_ARCH ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)

ifeq ($(DEB_HOST_ARCH),ppc64el)
export DEB_CFLAGS_MAINT_STRIP = -O3
export DEB_CFLAGS_MAINT_APPEND = -O2
endif

to debian/rules near the beginning, as it was done in the cowdancer
package and built this in my PPA for testing and this did not solve the
problem.

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Till Kamppeter]

Here we go:

https://launchpad.net/ubuntu/+source/krb5/1.14.2+dfsg-1/+build/9835772
https://launchpad.net/ubuntu/+source/krb5/1.14.2+dfsg-1/+build/9835772/+files/buildlog_ubuntu-yakkety-ppc64el.krb5_1.14.2+dfsg-1_BUILDING.txt.gz

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
  for example CUPS

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[Bug 1592841] Re: FTBFS on ppc64el, blocks updates of all packages depending on krb5, for example CUPS

[Till Kamppeter]

See

http://people.canonical.com/~ubuntu-archive/proposed-migration/update_excuses.html#cups
http://people.canonical.com/~ubuntu-archive/proposed-migration/update_excuses.html#krb5

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Title:
  FTBFS on ppc64el, blocks updates of all packages depending on krb5,
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