Another small release with fixes for non-MSVC Windows platforms.

What's Changed

Bug fixes

• RPM spec fix by @LecrisUT in #937.
• Validate value before returning library path by @dlech in #942.
• Only add Python_LIBRARY on Windows MSVC in #943 and #944.
• Slightly nicer traceback for failed compiler in 947.

Testing

• Hide a few warnings that are expected in #494.

Full Changelog: https://github.com/scikit-build/scikit-build/compare/0.17.1...0.17.2