* etags.c (plain_C_entries): new function.
(lowcase): new macro. (tail, Fortran_functions, Pascal_functions): use new macro lowcase. (lang_suffixes): new suffix ".pc" for Pro*C files. (consider_token): don't tag all tokens beginning with DEFUN & Co.. (tail): look for the end of the token when comparing. (takeprec): since now tail behaves differently, use strneq.
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