ERROR: Inconsistency between flag object and registration for flag 'v', likely due to duplicate flags or an ODR

[yurivict]

What version of OR-Tools and what language are you using?
Version: 9.8
Language: C++

What did you do?
Run the openroad program that links to or-tools.

What did you expect to see
n/a

What did you see instead?

$ openroad 
ERROR: Inconsistency between flag object and registration for flag 'v', likely due to duplicate flags or an ODR violation. Relevant files: wrkdirs/usr/ports/math/or-tools/work/or-tools-9.8/ortools/base/vlog_is_on.cc and /wrkdirs/usr/ports/devel/abseil/work/abseil-cpp-20240722.0/absl/log/flags.cc

Anything else we should know about your project / environment

abseil-20240722.0
FreeBSD 14.2
We can't upgrade or-tools because it has abseil incompatibilities.

[lperron]

You need at least 9.12.
We have split all dependencies from the main dll.

[lperron]

Note: we just spent 4 months fixing that recurring ODR that happens when protobuf and/or abseil are imported as a dll and as a lib.

[Mizux]

FYI v9.12 is using abseil 20240722.0 ....