[Debian-med-packaging] Bug#963481: FTBFS: Missing symbols on buster-backports/amd64

[Vasyl Gello]

Source: spdlog
Version: 1.5.0+ds-4
Severity: serious
Tags: patch ftbfs
Justification: fails to build from source (but built successfully in the past)

Dear colleagues,

Trying to perform a no-change rebuild of spdlog 1.5.0+ds-3 and -4 for buster-backports,
I encountered the FTBFS on missing symbols.

I opened a MR on Salsa against -3 fixing the build but it was somehow overlooked,
maybe because I did not file the accompanying bug. Now I rebased the MR against
med-team/spdlog master and I want to have it reviewed and merged.

After the fixed build hits testing, I also would like to ask the maintainers to
upload the backport for buster. This is required for Kodi package I am working on.

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.15.0-106-generic (SMP w/6 CPU cores)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=C, LC_CTYPE=C (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8), LANGUAGE=C (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: unable to detect

Regards,
Vasyl