RE_CONTEXT_INDEP_ANCHORS  102 lib/regex.h    # define RE_CONTEXT_INDEP_ANCHORS (RE_CHAR_CLASSES << 1)
RE_CONTEXT_INDEP_ANCHORS   72 test/manual/etags/c-src/emacs/src/regex.h #define RE_CONTEXT_INDEP_ANCHORS (RE_CHAR_CLASSES << 1)