Go beyond the release notes!

PackageSystemHeaders

#!/bin/zsh -f

set -e

PKG_DIR=/tmp/SystemHeaders-`uname -r`
echo "Packaging $PKG_DIR..."

mkdir -p $PKG_DIR
cd /
for d in System/Library/Frameworks usr/include Developer/Library/Frameworks usr/lib; do
	echo "  ... $d"
	mkdir -p "$PKG_DIR/$d"
	rsync -avP --exclude Resources --include "*/" --include "*.h" --exclude "*" --delete-excluded $d/ $PKG_DIR/$d/
done

cd $PKG_DIR:h
rm -f "$PKG_DIR:t".zip 
zip -r "$PKG_DIR:t".zip $PKG_DIR:t