* guix/build/dub-build-system.scm (build): Make reproducible. (check): Make reproducible.
It doesn't make sense to run non-test executables (which is what "dub run" would do). The "check" function already invokes "dub test" and that's enough. * guix/build/dub-build-system.scm (build): Remove "dub run" invocation.
* guix/build-system/dub.scm: New file. * guix/build/dub-build-system.scm: New file. * Makefile.am (MODULES): Add them. * doc/guix.texi: Add section for dub-build-system.