commit https://github.com/vim/vim/commit/66e29d7112e437b2b50efe1f82c7e892736d23e4 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 20 16:57:02 2016 +0200 patch 7.4.2230 Problem: There is no equivalent of 'smartcase' for a tag search. Solution: Add value "followscs" and "smart" to 'tagcase'. (Christian Brabandt, closes https://github.com/vim/vim/issues/712) Turn tagcase test into new style.

--- a/src/proto/search.pro
+++ b/src/proto/search.pro
@@ -7,6 +7,7 @@ void save_search_patterns(void);
 void restore_search_patterns(void);
 void free_search_patterns(void);
 int ignorecase(char_u *pat);
+int ignorecase_opt(char_u *pat, int ic_in, int scs);
 int pat_has_uppercase(char_u *pat);
 char_u *last_csearch(void);
 int last_csearch_forward(void);