[Reproducible-builds] enable -Wdate-time by default [was: GCC patch reviewed. Proposed mail for gcc-patches mailing list]

[Mattia Rizzolo]

On Tue, Nov 10, 2015 at 01:44:59PM +0100, Jérémy Bobbio wrote:
> Well, I still would like to push to add `-Wdate-time` to our default set
> of CFLAGS. Even with Dhole's patch, developpers would see the warning
> and ask themselves if it's the right thing to do.


Good that.
We are now down to 2 packages which FTBFS with -Wdate-time
    https://reproducible.debian.net/rb-pkg/unstable/amd64/expeyes.html
        https://bugs.debian.org/790103
    https://reproducible.debian.net/rb-pkg/unstable/amd64/wsjt.html
        no bug filed
    https://reproducible.debian.net/issues/unstable/ftbfs_wdatetime_issue.html
And other 2 packages (subversion and unbound) which fails due to swig
    https://bugs.debian.org/790102
    https://reproducible.debian.net/issues/unstable/ftbfs_wdatetime_due_to_swig_issue.html


This is what should be done to achive our goal:
https://wiki.debian.org/Teams/Dpkg/FAQ#Q:_Can_we_add_support_for_new_default_build_flags_to_dpkg-buildflags.3F

To me it seems only the d-d thread is missing, maybe after filing the
missing bug against src:wsjt.

If nobody object I can start that thread.


dpkg bug with the first "timeless" feature:
    https://bugs.debian.org/762683

-- 
regards,
                        Mattia Rizzolo

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