* regex.h (RE_NO_NEWLINE_ANCHOR): New syntax flag.
(struct re_pattern_buffer): Remove newline_anchor. * regex.c: Keep namespace clean for GNU libc by renaming <fun> to __<fun> and using `weak_alias (__<fun>, <fun>)'. (re_max_failures, fail_stack): Use size_t rather than unsigned. (regex_compile): For ^ and $, choose between buffer and line (beg|end) depending on the new RE_NO_NEWLINE_ANCHOR syntax flag. (print_compiled_pattern, re_search_2, mutually_exclusive_p) (re_match_2_internal, re_compile_pattern, re_comp, regcomp): Get rid of references to newline_anchor. (regcomp): Allocate and precompute a fastmap.
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