Thank you, Akim. I confirmed failures of automake's make check disappeared with your patch, except for original ones, suchi as FAIL: t/lex-clean-cxx.sh FAIL: t/lex-depend-cxx.sh
Tested with both of bison-3.8 & bison-3.8.1. Failures of flex's make check also disappeared with bison-3.8.1. Regards, --- Kiyoshi
