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 
<locutusofb...@debian.org> wrote:

Hello,


> 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.dzur...@canonical.com>  Tue, 03 Oct 2023 
08:58:01 -0700
+
  darktable (4.4.2-1) unstable; urgency=medium

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 $@

+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

        git describe --tags upstream | sed 's,^release-,,;s,-,+,;s,-,~,;'

> > Do you think maybe there should be a debian gcc bug? after all, the > * Update to new upstream version 4.4.2. override_dh_auto_configure: cmake/version.cmake describe-current-version:

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