Bug#1053405: darktable: FTBFS on arm64 (gcc bug?)

[Gianfranco Costamagna]

control: reassign -1 src:gcc-13
control: found -1 13.2.0-4
control: affects -1 src:darktable.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111677
According to upstream, we need a patch that was added some days ago on 13 branch

G.

On Wed, 4 Oct 2023 08:21:31 +0200 Gianfranco Costamagna <locutusofborg at debian.org> wrote:
> Hello,
> 
> > 
> > Do you think maybe there should be a debian gcc bug? after all, the
> > distinction you point to is a difference of debian version.
> > 
> 
> Not really sure, somewhat it fails with gcc-12 too, so it might be something that was even backported to older gcc, or something else
> 
> 
> For sure, it builds if we disable OPENMP support
> 
> diff -Nru darktable-4.4.2/debian/changelog darktable-4.4.2/debian/changelog
> --- darktable-4.4.2/debian/changelog	2023-08-20 12:26:40.000000000 +0000
> +++ darktable-4.4.2/debian/changelog	2023-10-03 15:58:01.000000000 +0000
> @@ -1,3 +1,10 @@
> +darktable (4.4.2-1.1) unstable; urgency=medium
> +
> +  * Disable openmp for arm64 builds (LP: #2038351)
> +    See Debian bug: #1053405
> +
> + -- Mitchell Dzurick <mitchell.dzurick at canonical.com>  Tue, 03 Oct 2023 08:58:01 -0700
> +
>   darktable (4.4.2-1) unstable; urgency=medium
>   
>     * Update to new upstream version 4.4.2.
> diff -Nru darktable-4.4.2/debian/rules darktable-4.4.2/debian/rules
> --- darktable-4.4.2/debian/rules	2023-08-20 12:26:40.000000000 +0000
> +++ darktable-4.4.2/debian/rules	2023-10-03 15:58:01.000000000 +0000
> @@ -20,7 +20,12 @@
>   	dh $@
>   
>   override_dh_auto_configure: cmake/version.cmake
> +ifeq ($(DEB_HOST_ARCH),arm64)
> +	# Disable OPENMP for arm64 builds. See LP: #2038351
> +	dh_auto_configure -- -DBINARY_PACKAGE_BUILD=1 -DCMAKE_BUILD_TYPE=Release -DRAWSPEED_ENABLE_LTO=ON -DUSE_OPENMP=OFF
> +else
>   	dh_auto_configure -- -DBINARY_PACKAGE_BUILD=1 -DCMAKE_BUILD_TYPE=Release -DRAWSPEED_ENABLE_LTO=ON
> +endif
>   
>   describe-current-version:
>   	git describe --tags upstream | sed 's,^release-,,;s,-,+,;s,-,~,;'
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