Bug#955345: gcc-multilib-sparc64-linux-gnu: incorrect dynamic-linker when building with -m32

[Carlo Marcelo Arenas Belón <carenas@gmail.com>]

Package: gcc-multilib-sparc64-linux-gnu
Version: 4:6.3.0-4
Severity: important

Dear Maintainer,

building a 32-bit sparc binary works as expected but fails to run
through qemu-linux-user while pointing to multilib libc that was used.

/usr/sparc64-linux-gnu/lib/ld-linux.so.2 points to the 64-bit ld-2.20.so
instead of the 32-bit one in /usr/sparc64-linux-gnu/lib32

-- System Information:
Debian Release: 9.12
  APT prefers oldstable
  APT policy: (500, 'oldstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.87-07826-g55ab70aff690 (SMP w/4 CPU cores; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gcc-multilib-sparc64-linux-gnu depends on:
ii  cpp-sparc64-linux-gnu             4:6.3.0-4
ii  gcc-6-multilib-sparc64-linux-gnu  6.3.0-18cross1
ii  gcc-sparc64-linux-gnu             4:6.3.0-4

Versions of packages gcc-multilib-sparc64-linux-gnu recommends:
ii  libc6-dev-sparc64-cross [libc-dev-sparc64-cross]  2.24-10cross1

Versions of packages gcc-multilib-sparc64-linux-gnu suggests:
ii  autoconf               2.69-10
ii  automake               1:1.15-6
pn  bison                  <none>
ii  flex                   2.6.1-1.3
pn  gcc-doc                <none>
pn  gdb-sparc64-linux-gnu  <none>
ii  libtool                2.4.6-2
ii  make                   4.1-9.1
ii  manpages-dev           4.10-2

-- no debconf information