* lisp/language/tibetan.el (tibetan-subjoined-transcription-alist) (tibetan-regexp, tibetan-precomposed-regexp) (tibetan-precomposition-rule-regexp): Evaluate at compile time. Use regexp-opt.
* lisp/language/tibetan.el (tibetan-subjoined-transcription-alist) (tibetan-regexp, tibetan-precomposed-regexp) (tibetan-precomposition-rule-regexp): Evaluate at compile time. Use regexp-opt.