[Q] fix gtk segfault

QUERY Sean> - if (!(HASH_TABLEP(Qgtk_seen_characters))) Sean> + if (!Qgtk_seen_characters || !(HASH_TABLEP(Qgtk_seen_characters))) Never apply C logical operators to C variable names like Qfoo, Fbar, or Vbaz. It doesn't mean what you hope it would; if such variables are ever NULL after the LISP engine is initialized, it's a bug. I think that probably what should be done is to (1) Rename Qgtk_seen_characters to Vgtk_seen_characters. (The Q prefix is reserved for symbols, but this variable should contain hash tables.) (2) Initialize Vgtk_seen_characters = Qunbound in the vars_of function. I prefer Qunbound to Qnil because the latter may silently pass in come cases, but lack of initialization to a hash table here is always a bug---we definitely want an error signaled. -- School of Systems and Information Engineering http://turnbull.sk.tsukuba.ac.jp University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Ask not how you can "do" free software business; ask what your business can "do for" free software.