LAME 4.0 source and personal replacement

This package includes lame-4.0.tar.gz, its upstream COPYING and LICENSE,
COPYING.LGPL-2.1, and build-lame.sh. SparkleShot elects LGPL 2.1 under the
upstream LGPL 2-or-later option. The source archive is unmodified.

With Xcode command-line tools available, build in a new, unused absolute path:
    zsh build-lame.sh /absolute/path/to/a-new-build-directory
The script verifies the source checksum, builds the shared arm64 encoder for
macOS 15+, and prints the resulting libmp3lame.0.dylib path. It does not clean
existing directories, modify your app, require Homebrew, or install software.
The original source produces compiler warnings with current Clang; the included
script does not hide them or apply undocumented source patches.

Work on your own copy of SparkleShot.app. The replaceable library is located at:
    SparkleShot.app/Contents/Frameworks/libmp3lame.0.dylib
The application uses LAME's public C encoding symbols through this path.
Keep these APIs ABI-compatible; a replacement is never downloaded or installed
by SparkleShot. The application's encoder uses CBR quality=4.

Changing a signed app invalidates its existing signature. For a personal local
copy you may sign your rebuilt library and modified app copy with your own
appropriate code-signing identity, preserving the app's sandbox and microphone
entitlements. macOS may request privacy permissions again for a new code identity.
Distribution under Apple's signature is not a right to reuse that signature.
No system protection needs to be disabled to exercise the LGPL rights.

Contact the developer listed in the app for questions about these materials.