Toolchain: Exit Build*.sh scripts if executed as root

Author: https://github.com/kennethmyhra
Commit: f5cb46e316
Pull-request: https://github.com/SerenityOS/serenity/pull/18495
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/fdellwing

Toolchain/BuildRuby.sh

@@ -5,6 +5,11 @@ set -e
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
+# shellcheck source=/dev/null
+. "${DIR}/../Meta/shell_include.sh"
+
+exit_if_running_as_root "Do not run BuildRuby.sh as root, parts of your Toolchain directory will become root-owned"
+
 PREFIX_DIR="$DIR/Local/ruby"
 BUILD_DIR="$DIR/Build/ruby"
 TARBALLS_DIR="$DIR/Tarballs"