Bug#914097: libomp5-7: not multiarch compatible

[Giacomo Mulas]

Package: libomp5-7
Severity: wishlist

Dear Maintainer,

I have a number of amd64 machines on which I have perfectly working
multiarch installations, namely main distro amd64, run time libraries in 
i386 versions as well, a bunch of i386 applications. The libomp5-7 
packages, both amd64 and i386 versions, were pulled in as dependencies by 
the non-free libmkl packages (but that's not really relevant). 
Unfortunately, since libomp5-7 installs the actual libs under the directory 
/usr/lib/llvm-7/lib, both amd64 and i386 versions try to install their 
respective different versions of the library with exactly the same file name.
Would it be complicated to install just the runtime libraries under the 
standard multiarch-compatible /usr/lib/x86_64-linux-gnu and 
/usr/lib/i386-linux-gnu directories, so that they can be both simultaneously 
installed without conflicts? This would be desirable for any runtime library,
and in particular one which is likely to be pulled in by anything compiled by
llvm. I will happily provide help with this, if needed and requested.

Thanks in advance, best regards.

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-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (401, 'unstable'), (10, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.18.10-jak (SMP w/4 CPU cores)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8) (ignored: LC_ALL set to it_IT.UTF-8), LANGUAGE=it_IT,en_EN (charmap=UTF-8) (ignored: LC_ALL set to it_IT.UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled