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distro test rebuild using GCC 6

From: Matthias Klose <doko at ubuntu dot com>

To: gcc Development <gcc at gcc dot gnu dot org>

Date: Wed, 13 Jan 2016 14:17:16 +0100

Subject: distro test rebuild using GCC 6

Authentication-results: sourceware.org; auth=none

Here are some first results from a distro test rebuild using GCC 6. A snapshot

of the current Ubuntu development series was taken on 20151218 for all

architectures (amd64, arm64, armhf, i386/i686, powerpc, ppc64el, s390x), and

rebuilt unmodified using the current GCC 5 branch, and using GCC 6 20160101

(then updated to 20160109).

The build logs for package builds regressing with GCC 6 can be found at

http://people.canonical.com/~doko/tmp/gcc6-regr/ (918 packages, compared to

around 500 regressions seen in GCC 5)

extracted from http://people.ubuntuwire.org/~wgrant/rebuild-ftbfs-test/test-rebuild-20151218.1-gcc6-xenial.html http://people.ubuntuwire.org/~wgrant/rebuild-ftbfs-test/test-rebuild-20151218.1-xenial-baseline-xenial.html The GCC 6 packages can be found at https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/test/ GCC 6 packages for Debian are in Debian/experimental.

Bug reports for all ICEs were submitted to the GCC bug tracker, excluding some

where cc1/cc1plus was killed by the OS (haskell-src-exts, octomap,

plasma-desktop, seqan (all arm64), freeorion (ppc64el).

I haven't yet looked into the build failures except for the ICEs. If somebody

wants to help please let me know so that work isn't duplicated.

I'm planning to do a second test rebuild for Debian/unstable (amd64 only) in

early Feb.

Matthias