grub_script.yy.c：2354：13：錯誤：'yy_fatal_error'已定義但未使用

Question

構建最新的grub2（2.00）時出現此錯誤。

我試圖在Makefile加入-Wno-unused-function既HOST_CFLAGS，HOST_CPPFLAGS，TARGET_CPPFLAGS和TARGET_CFLAGS。我甚至嘗試刪除該功能，而make正在運行！

不幸的是，錯誤依然存在。

Answer 1

你見過this？

The latest flex makes the GRUB-2.00 build fail. I can work around the issues with --disable-werror , but grub-core/script/yylex.l causes two warnings that do not work with -Werror.

./grub-core/script/yylex.l: At top level: grub_script.yy.c:2351:13: error: 'yy_fatal_error' defined but not used

This can be fixed by removing #define YY_FATAL_ERROR(msg) in yylex.l .

但是，根據this後這似乎已經修復。

從網絡上的信息判斷，您要麼切換到grub 2.02，要麼嘗試更舊版本的flex。