maintainer-feedback requested: [Bug 248268] audio/libsndfile: Update to master branch and use cmake

[bugzilla-noreply at freebsd.org]

Bugzilla Automation <bugzilla at FreeBSD.org> has asked freebsd-multimedia
(Nobody) <multimedia at FreeBSD.org> for maintainer-feedback:
Bug 248268: audio/libsndfile: Update to master branch and use cmake
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248268



--- Description ---
The current version is very dated and needs a lot of patches to fix multiple
CVEs which also adds to maintence overhead. Upstream released a pre-release
tarball about a year ago [1] however nothing new since. This also adds support
for Opus format and bugfixes.

* Pull source code from GitHub
* Switch to Cmake
* Remove clipping option (autodetected)

Tested on FreeBSD 13.0-CURRENT r361421 (amd64)
"make test" OK with and without external libs
Poudriere testport OK 12.1-RELEASE (amd64)

Compile test: musicpd, twolame, wavegain

[1] https://github.com/erikd/libsndfile/issues/470#issuecomment-501893463