Package: gtk-d Version: 3.9.0-1 Severity: serious the new gtk-d upload failed to build on armhf, the dependencies install gdc but the package tries to build with ldc.
I presume this was triggered by the change in default d compiler on armhf from ldc to gdc. The changelog mentions building with gdc, but whatever the actual change was it doesn't seem to have had the desired affect.