Source: dub Version: 1.2.0-1 Hi Maintainer
Please replace the 'no-as-needed GDC linker hack' removed in 1.2.0-1 [1]. It is still required in Ubuntu, where everything builds with -Wl,---as-needed by default.
Regards Graham[1] https://anonscm.debian.org/cgit/pkg-d/dub.git/commit/?id=66a855ee8692dc14ce7f1a49a40207260ce3054c