[Debian-med-packaging] Bug#766821: relion: FTBFS: B-D on nonexistent openmpi-gcc

[Aaron M. Ucko]

Source: relion
Version: 1.3+dfsg-1
Severity: serious
Justification: fails to build from source

Automatic builds of relion have been failing because it declares a
build dependency on the nonexistent openmpi-gcc package.  Yes, it
lists libopenmpi-dev as an alternative; however, for the sake of
better reproducibility, Debian's autobuilders are configured to
consider alternatives only when forced to by explicit architecture
restrictions on otherwise preferred choices.

Could you please take a look?

Thanks!