[BUILD][UNIX] Test for Boost Libraries fail on Apple silicon (Homebrew path change)

[trevorsandy]

Summary

Test for Boost Libraries fail on Apple silicon builds - i.e. macOS 14.

POV-Ray Version

• Incarnation: POV-Ray for Unix
• Affected source version: v3.8.0 and older
• Known working source version: N/A

Build Environment

• Operating system: macOS 14
• Hardware architecture: arm64
• Compiler: clang, gcc

Build Command Sequence

See build workflow

https://github.com/trevorsandy/povray/actions/runs/11058396391/workflow

Pre-Build Output

N/A

Configure Output

configure: error: cannot find a suitable boost thread library

Make Output

N/A

Additional context (optional)

None

Workaround (optional)

Manually edit line 169 in 'unix/config/ax_boost_base.m4' to add /opt/homebrew

Suggested Solution (optional)

Replace existing ax_boost_base.m4 with updated version which includes the changed homebrew path.
The latest ax_boost_base version is available here:
See additional details here:

Cheers,