Bug#734461: minetest: FTBFS: BD-Uninstallable on release arches due to luajit

[Thorsten Glaser]

Source: minetest
Version: 0.4.9+repack-1
Severity: serious
Justification: fails to build from source (but built successfully in the past)

Hi,

minetest FTBFS on release architectures mipsel, s390x and other
architectures ia64 (where it built in stable and testing), hurd-i386,
kfreebsd-amd64 (where it built in testing), sparc (also in testing),
and all Debian-Ports architectures.

Cause for this is that libluajit-5.1-dev only exists on some
architectures.

Please ensure that this package works without it and arch-qualify
that build-dependency, or restrict its Architecture field to only
build on architectures that have libluajit-5.1-dev.