[ARROW-15495] [C++][FlightRPC] Ensure system gRPC is only used with system Protobuf

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.0.0
• Component/s: C++, FlightRPC
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/30970
• Assignee: David Li
• Reporter: David Li
• Created: 28/Jan/22 13:03
• Updated: 11/Jan/23 11:37
• Resolved: 28/Jan/22 23:01

Description

See Kou's post on the ML: https://lists.apache.org/thread/dg2nm7r9vpo42toygg8o8rzf8gkg6knb

We should ensure system gRPC doesn't get mixed with bundled Protobuf which can cause test failures (also this is not really a valid combination, this will likely link in two copies of Protobuf).

Issue Links

• links to: GitHub Pull Request #12284