Hi, Bison 3.8.2 is issuing the following warning for a grammar whose semantic action includes the variable name my_charset_utf8mb4_bin:
yy_mariadb.cc:35834: warning: suspicious sequence in the output: b4_bin [-Wother] It seems to me that the regular expression in http://git.savannah.gnu.org/cgit/bison.git/tree/src/scan-skel.l is too greedy. Perhaps a start-of-word anchor like \< (if flex supports that) could be applied? Even then, I suppose that it would create bogus warnings if the input actually contains any word that starts with m4_ or b4_. (Are those documented as reserved words?) With best regards, Marko -- Marko Mäkelä, Lead Developer InnoDB MariaDB Corporation