[Reproducible-builds] Bug#832179: dpkg-buildflags: please enable reproducible/fixdebugpath by default

[Mattia Rizzolo]

Package: dpkg-dev
Version: 1.18.9
Severity: wishlist
User: reproducible-builds at lists.alioth.debian.org
Usertags: toolchain buildpath
X-Debbugs-Cc: reproducible-builds at lists.alioth.debian.org

Dear dpkg maintainers,

Over the past month we've been rebuilding the debian archive with
'-fdebug-prefix-map' (also known as 'reproducible/fixdebugpath' within
dpkg-buildflags) enabled.

Following the dpkg team's instructions [0] about how to add a new
buildflag to the default set we wrote to debian-devel [1][2] exposing
our findings and our believes.

Summing up, according to our tests enabling this build flags is going to
cause 4 FTBFS in unstable:
 - afl #828178
 - libblocksruntime #832015
 - libclc # 832014
 - ncl #832011

Is my personal opinion that none of these packages warrant delaying the
introduction of this build flag in the default set.
Besides, nobody raised any concern after those emails to d-d.

Therefore, we'd like to proceed.  Attached you can find a patch enabling
the buildflags set reproducible/fixdebugpath by default.

Thanks in advance.


[0] https://wiki.debian.org/Teams/Dpkg/FAQ#Q:_Can_we_add_support_for_new_default_build_flags_to_dpkg-buildflags.3F
[1] https://lists.debian.org/msgid-search/20160718085659.GI7462@chase.mapreri.org
[2] https://lists.debian.org/msgid-search/20160721110631.GE26853@chase.mapreri.org

-- 
regards,
                        Mattia Rizzolo

GPG Key: 66AE 2B4A FCCF 3F52 DA18  4D18 4B04 3FCD B944 4540      .''`.
more about me:  https://mapreri.org                             : :'  :
Launchpad user: https://launchpad.net/~mapreri                  `. `'`
Debian QA page: https://qa.debian.org/developer.php?login=mattia  `-
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