[ARROW-14748] [C++][CI] Compiler check for routine returns

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 7.0.0
• Component/s: C++, Continuous Integration
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/30285
• Assignee: Benson Muite
• Reporter: Benson Muite
• Created: 18/Nov/21 04:30
• Updated: 11/Jan/23 08:42
• Resolved: 22/Nov/21 15:41

Description

When compiling with Clang, default behavior is to have the compiler flag `'warn_unused_result' attribute [-Werror,-Wunused-result]` - enable the equivalent for some of the GCC builds as well.

Issue Links

• links to: GitHub Pull Request #11747
• links to: GitHub Pull Request #11759