Bug#1053641: transition: libavif

[Boyuan Yang]

Hi,

在 2023-10-07星期六的 23:59 +0300，Adrian Bunk写道：
> On Sat, Oct 07, 2023 at 03:33:16PM -0400, Boyuan Yang wrote:
> > ...
> > (2) Fix current jpeg-xl in Sid properly. That won't be too trivial since the new
> > testing error is likely triggered by some unclear changes in build-dependencies over
> > the past several months.
> > ...
> 
> Fix below, only tested on i386 but should also fix s390x.
> 
> > Thanks,
> > Boyuan Yang
> > ...
> 
> cu
> Adrian
> 
> --- jpeg-xl-0.7.0/debian/rules.old	2023-10-07 20:36:28.728571696 +0000
> +++ jpeg-xl-0.7.0/debian/rules	2023-10-07 20:36:51.420550561 +0000
> @@ -23,6 +23,8 @@
>    DEB_CXXFLAGS_MAINT_APPEND += -fno-tree-vectorize
>  endif
>  
> +DEB_CXXFLAGS_MAINT_APPEND += -fexcess-precision=fast
> +
>  ifneq (,$(filter $(DEB_HOST_ARCH), arm64 armel armhf ppc64el))
>    # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77728
>    DEB_CXXFLAGS_MAINT_APPEND += -Wno-psabi

Thanks. I noticed that gcc-13 changed its default from -fexcess-precision=fast to
-fexcess-precision=standard with -std=c++17[2], and this is likely the root cause of
recent FTBFS. I have incorporated your patch into jpeg-xl/0.7.0-10.2 upload, and
the build seems to go on well. Looks like we can continue and finish the libavif
transition.

[2] https://gcc.gnu.org/gcc-13/changes.html#cxx


Best,
Boyuan Yang
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